From 9819522ea1bd8e25645fa1195838f188d2a45bfe Mon Sep 17 00:00:00 2001
From: Victor Baranov <baranov.viktor.27@gmail.com>
Date: Mon, 4 Mar 2024 13:45:13 +0300
Subject: [PATCH] Optimism chain type (#9460)

* Transaction page L1 fields

* Path fix

* Reduce the number of files from 19 to 5 in logs rotate config

* Customize optimism-goerli deployment

* Optimism branding

* Remove testnet logo text. OG uses customized label

* Fix Circles theme

* L1 tx fields fix for Optimism BedRock update

* Remove redundant line

* Add gas_price handling for elixir_to_params and change function ordering

* Remove l1TxOrigin handling for another version of RPC

* Add GA

* Fix realtime fetcher test

* Update Changelog

* Fix internal transactions processing for non-consensus blocks

* Lose consensus only for consensus=true blocks

* Fix handling transaction RPC responses without some fields

* Fix tests except for indexer module

* Add Optimism BedRock support (Txn Batches, Output Roots, Deposits, Withdrawals) (#6980)

* Add op_output_roots table

* Add OptimismOutputRoots runner

* Add initial code for output roots fetcher

* Add checks to init function

* Partially add logs and L1 reorgs handling

* Add reorgs handling

* Add RPC retries

* Write output roots to database

* Log output roots handling

* Update indexer README

* Add API v2 for Optimism Output Roots

* Add op_withdrawals table

* Add OptimismWithdrawals runner

* Prepare realtime optimism withdrawals fetching

* Add realtime optimism withdrawals fetching

* Define checks in init function

* log.first_topic can be nil

* Show total count of output roots in API v2

* Add msg_nonce gaps filler

* Refactoring

* Intermediate refactoring

* Add historical withdrawals handling and refactor

* Finish op_withdrawals table filling

* Small refactoring

* Add op_withdrawal_events table

* Add OptimismWithdrawalEvents runner

* Add OptimismWithdrawalEvent fetcher

* Update indexer README

* Add API v2 for Optimism Withdrawals

* Add env variables to common-blockscout.env and Makefile

* Set `from` as address object instead of just address hash for withdrawal

* mix format

* Add op_transaction_batches table

* Add OptimismTxnBatches runner

* Add a draft for OptimismTxnBatch fetcher

* Add a draft for OptimismTxnBatch

* Extend a draft for OptimismTxnBatch

* Extend OptimismTxnBatch

* Finish OptimismTxnBatch (without reorgs handling yet)

* Optimize OptimismTxnBatch fetcher

* Remove duplicated txn batches

* Add zlib_inflate_handler for empty case

* Add reorgs handling for txn batches

* Fix reorgs handling for txn batches

* Small refactor

* Finish Indexer.Fetcher.OptimismTxnBatch (without refactoring yet)

* Apply new ex_rlp version

* Add API v2 for Optimism Txn Batches

* Add env variables to common-blockscout.env and Makefile

* Refactor OptimismTxnBatch fetcher for mix credo

* Replace binary_slice with binary_part function to run with Elixir 1.13

* Update changelog

* Update indexer readme

* Rename op_withdrawals.l2_tx_hash field to l2_transaction_hash

* Rename l1_tx_hash fields to l1_transaction_hash

* Rename *tx* fields to *transaction* fields

* Rename env variables

* Rename env variables

* Add an indexer helper

* Add an indexer helper

* Small refactoring

* Fix tx_count for txn batches view

* Use EthereumJSONRPC.Block.ByHash instead of the raw call

* Infinity timeout for blocks query

* Small refactoring

* Refactor init function for two modules

* Small refactoring

* Rename l1_transaction_timestamp field to l1_timestamp

* Rename withdrawal_hash field to hash

* Refactor for decode_data function

* Refactor for mix credo

* Add INDEXER_OPTIMISM_L1_BATCH_BLOCKS_CHUNK_SIZE env and small refactoring

* Add INDEXER_OPTIMISM_L1_BATCH_BLOCKS_CHUNK_SIZE env to other files

* Add an index for l1_block_number field

* Add an index for l1_block_number field

* Remove redundant :ok

* Use faster way to count rows in a table

* Refactor reorgs monitor functions

* Clarify frame structure

* Reduce storage consumption for optimism transaction batches

* Reuse CacheHelper.estimated_count_from function

* Bedrock optimism deposits (#6993)

* Create `op_deposits` table

* Add OptimismDeposit runner

* WIP Fetcher

* Finish fetcher

* Integrate deposits into APIv2

* Add envs

* Fix requests

* Remove debug

* Update envs names

* Rename `tx` -> `transaction`

* Reuse `decode_data/2`

* Fix review

* Add `uninstall_filter`

* Fix formatting

* Switch to realtime mode more carefully

* Fix review

Allow nil in timestamp
Add progress logging
Improve check_interval calculation

* Fix logging and env

* Fix Association.NotLoaded error

* Replace switching to realtime mode log

* Remove excess start_block

* Fix reorg logging

* Fix `from_block` > `to_block` and add realtime logging

* Fix block boundaries

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>

* mix format

* Return total count of L2 entity by a separate API request

* Filter by consensus blocks

* Parallelize tx count operation and small refactoring

* Use read replica for L2 entities in API

* Parse block_number and tx_hash for Optimism Deposits module

* Return page_size back to 50

* Small fixes and refactoring

* Update apps/block_scout_web/lib/block_scout_web/api_router.ex

Co-authored-by: Maxim Filonov <53992153+sl1depengwyn@users.noreply.github.com>

* Small optimization

* Use ecto association instead of explicit join for txn batches

* Refactoring

* Use Stream inspead of Enum

* Small refactoring

* Add assoc for transaction batches in OptimismFrameSequence

* Use common reorg monitor for Optimism modules

* Rename Explorer.Helpers to Explorer.Helper

* Don't start an optimism module unless the main optimism module is not started

* Don't start reorg monitor for optimism modules when it is not needed

* Small refactoring

* Remove debug broadcasting

* Add Optimism BedRock Deposits to the main page in API (#7200)

* Add Optimism BedRock Deposits to the main page in API

* Update changelog

* Pass the number of deposits instead of only one item per once

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>

* Refactor for credo

* Output L1 fields in API v2 for transaction page

* Update changelog

* Use helper

* Refactor Indexer.Fetcher.Optimism

* Fix l1_timestamp issue in OptimismTxnBatch fetcher

* Reset Logger metadata before Indexer.Transform.OptimismWithdrawals.parse function finishes

* Fix IDs ordering in remove_duplicates function of Indexer.Fetcher.OptimismTxnBatch

* Consider rewriting of the first frame in Indexer.Fetcher.OptimismTxnBatch

* Fix Indexer.Fetcher.OptimismTxnBatch (consider chunking)

* Fix Indexer.Fetcher.OptimismTxnBatch

* Fix handling invalid frame sequences in Indexer.Fetcher.OptimismTxnBatch

* Read Optimism finalization period from a smart contract

* Fixes for dialyzer

* Fix for EthereumJSONRPC tests

* Fixes for Explorer tests

* Fixes for Explorer tests

* Fix of block/realtime/fetcher_test.exs

* mix format and small fixes for block_scout_web tests

* Reset GA cache

* Fix handling nil in PendingBlockOperation.estimated_count()

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>
Co-authored-by: Maxim Filonov <53992153+sl1depengwyn@users.noreply.github.com>

* Fix autocomplete

* Fix merging conflicts

* Add exit handler to Indexer.Fetcher.OptimismWithdrawal

* Fix transactions ordering in Indexer.Fetcher.OptimismTxnBatch

* Update changelog

* Refactor to fix credo

* Mix credo fix

* Fix transaction batches module for L2 OP stack (#7827)

* Fix mixed transactions handling in Indexer.Fetcher.OptimismTxnBatch

* Ignore duplicated frame

* Update changelog

* Add sorting to the future frames list

* Change list order

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>

* Remove unused aliases

* Ignore previously handled frame by OP transaction batches module (#8122)

* Ignore duplicated frame

* Update changelog

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>

* Return alias for Explorer.Chain.Cache.Helper in chain.ex

* Ignore invalid frame by OP transaction batches module (#8208)

* Update changelog

* Ignore invalid frame

* Update changelog

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>

* Fix Indexer.Fetcher.OptimismTxnBatch

* Fix API v2 for OP Withdrawals

* Refactor optimism fetchers init

* Add log for switching from fallback url

* Fix for Indexer.Fetcher.OptimismTxnBatch

* Add OP withdrawal status to transaction page in API (#8702)

* Add OP withdrawal status to transaction page in API

* Update changelog

* Small refactoring

* Update .dialyzer-ignore

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>

* Add start pause to `Indexer.Fetcher.OptimismTxnBatch`

* Small refactor of `Indexer.Fetcher.OptimismTxnBatch`

* Consider consensus block only when retrieving OP withdrawal transaction status (#8811)

* Consider consensus block only when retrieving OP withdrawal transaction status

* Update changelog

* Clear GA cache

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>

* Hotfix for optimism_withdrawal_transaction_status function

* Return all OP Withdrawals bound to L2 transaction

* Try to import config

* Remove unused functions from Explorer.Chain

* Refactor for mix credo

* Fix order of proxy standards: 1167, 1967

* Fixes in Optimism due to changed log topics type

* Fix for EthereumJSONRPC tests

* Clear GA cache and update cspell.json

* Fix indexer tests

* Return current exchange rate in api/v2/stats

* Fix log decoding bug

* Temp disable build of image for arm64

* Rewrite Indexer.Fetcher.OptimismTxnBatch module

* Add handling of span batches

* Add support of latest block for Optimism modules

* Update changelog and spelling

* Rewrite Indexer.Fetcher.OptimismTxnBatch module

* Add handling of span batches

* Add support of latest block for Optimism modules

* Refactoring

* Partially add specs and docs for public functions

* Refactoring

* add an entry to CHANEGELOG.md

* apply review (use origin entity instead of joined entity in with tx status)

* Fixes after rebase

* Remove old UI sustomizations

* Optimism chain type

* Change structure of folders

* Fixes after review

* Fix CHANGELOG

* Fixes after 2nd review

* Process 3d review: add tests for fee/2 function

* Process 4th review

* Review fix: move Op related functions from chain.ex

* Review fix: make OptimismFinalizationPeriod configurable

* Process review comment

* System.get_env("CHAIN_TYPE") => Application.get_env(:explorer, :chain_type)

---------

Co-authored-by: POA <33550681+poa@users.noreply.github.com>
Co-authored-by: Qwerty5Uiop <alex000010@bk.ru>
Co-authored-by: varasev <33550681+varasev@users.noreply.github.com>
Co-authored-by: Maxim Filonov <53992153+sl1depengwyn@users.noreply.github.com>
Co-authored-by: rlgns98kr <rlgns98kr@gmail.com>
---
 .github/workflows/config.yml                  |   2 +-
 .../publish-docker-image-for-optimism.yml     |   3 +-
 .github/workflows/release-optimism.yml        |  45 +
 CHANGELOG.md                                  |  24 +-
 .../lib/block_scout_web/api_router.ex         |  33 +-
 .../lib/block_scout_web/chain.ex              |  43 +
 .../channels/optimism_deposit_channel.ex      |  22 +
 .../block_scout_web/channels/user_socket.ex   |   1 +
 .../channels/user_socket_v2.ex                |   1 +
 .../api/v2/main_page_controller.ex            |  16 +-
 .../controllers/api/v2/optimism_controller.ex | 111 +++
 .../lib/block_scout_web/notifier.ex           |   8 +
 .../block_scout_web/realtime_event_handler.ex |   1 +
 .../templates/block/_tile.html.eex            |   2 +-
 .../templates/chain/show.html.eex             |  32 +-
 .../internal_transaction/_tile.html.eex       |   2 +-
 .../templates/layout/_topnav.html.eex         |  20 +-
 .../transaction/_pending_tile.html.eex        |   2 +-
 .../templates/transaction/_tile.html.eex      |   4 +-
 .../templates/transaction/overview.html.eex   |  95 +-
 .../views/api/v2/optimism_view.ex             | 149 +++
 .../views/api/v2/transaction_view.ex          |  36 +
 .../views/cldr_helper/number.ex               |   2 +
 .../block_scout_web/views/transaction_view.ex |  14 +
 apps/block_scout_web/mix.exs                  |  10 +-
 apps/block_scout_web/priv/gettext/default.pot | 351 +++++---
 .../priv/gettext/en/LC_MESSAGES/default.po    | 353 +++++---
 apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex |  10 +
 .../lib/ethereum_jsonrpc/block/by_hash.ex     |   6 +-
 .../lib/ethereum_jsonrpc/receipt.ex           |  25 +-
 .../lib/ethereum_jsonrpc/receipts.ex          |   6 +
 .../lib/ethereum_jsonrpc/transaction.ex       | 103 ++-
 .../utility/endpoint_availability_checker.ex  |   5 +-
 .../utility/endpoint_availability_observer.ex |   3 +
 .../lib/ethereum_jsonrpc/variant.ex           |   1 +
 apps/explorer/config/dev.exs                  |   3 +
 apps/explorer/config/prod.exs                 |   4 +
 apps/explorer/config/test.exs                 |   1 +
 apps/explorer/lib/explorer/application.ex     |   2 +
 apps/explorer/lib/explorer/chain.ex           |  19 +-
 .../lib/explorer/chain/address/counters.ex    |   2 +-
 .../lib/explorer/chain/cache/block.ex         |  10 +-
 .../lib/explorer/chain/cache/helper.ex        |   2 +-
 .../cache/optimism_finalization_period.ex     |  54 ++
 .../chain/cache/pending_block_operation.ex    |   2 +-
 .../lib/explorer/chain/cache/transaction.ex   |   2 +-
 .../lib/explorer/chain/events/publisher.ex    |   2 +-
 .../lib/explorer/chain/events/subscriber.ex   |   2 +-
 .../chain/import/runner/optimism/deposits.ex  | 106 +++
 .../import/runner/optimism/frame_sequences.ex | 102 +++
 .../import/runner/optimism/output_roots.ex    | 108 +++
 .../import/runner/optimism/txn_batches.ex     | 100 +++
 .../runner/optimism/withdrawal_events.ex      | 105 +++
 .../import/runner/optimism/withdrawals.ex     | 104 +++
 .../chain/import/runner/transactions.ex       | 406 +++++----
 .../chain/import/stage/block_referencing.ex   |  16 +-
 .../lib/explorer/chain/optimism/deposit.ex    |  86 ++
 .../explorer/chain/optimism/frame_sequence.ex |  33 +
 .../explorer/chain/optimism/output_root.ex    |  67 ++
 .../lib/explorer/chain/optimism/txn_batch.ex  |  61 ++
 .../lib/explorer/chain/optimism/withdrawal.ex | 163 ++++
 .../chain/optimism/withdrawal_event.ex        |  34 +
 .../lib/explorer/chain/transaction.ex         |  78 +-
 apps/explorer/lib/explorer/helper.ex          |  17 +-
 apps/explorer/lib/explorer/repo.ex            |  10 +
 ...0243_transaction_columns_to_support_l2.exs |  14 +
 ...230131115105_add_op_output_roots_table.exs |  16 +
 ...0230206123308_add_op_withdrawals_table.exs |  14 +
 ...2162845_add_op_withdrawal_events_table.exs |  22 +
 ...35703_add_op_transaction_batches_table.exs |  14 +
 .../20230220202107_create_op_deposits.exs     |  17 +
 .../20230301105051_rename_fields.exs          |  12 +
 .../20230303125841_add_op_indexes.exs         |   8 +
 ...307090655_add_op_frame_sequences_table.exs |  24 +
 ...3_modify_collated_gas_price_constraint.exs |  15 +
 ...20231025102325_add_op_withdrawal_index.exs |   7 +
 ...124124644_remove_op_epoch_number_field.exs |   9 +
 .../test/explorer/chain/transaction_test.exs  |  46 +
 apps/indexer/README.md                        |   6 +
 apps/indexer/lib/indexer/block/fetcher.ex     |  10 +
 .../lib/indexer/block/realtime/fetcher.ex     |  12 +
 .../indexer/fetcher/coin_balance/realtime.ex  |   1 -
 apps/indexer/lib/indexer/fetcher/optimism.ex  | 406 +++++++++
 .../lib/indexer/fetcher/optimism/deposit.ex   | 565 ++++++++++++
 .../indexer/fetcher/optimism/output_root.ex   | 187 ++++
 .../lib/indexer/fetcher/optimism/txn_batch.ex | 850 ++++++++++++++++++
 .../indexer/fetcher/optimism/withdrawal.ex    | 361 ++++++++
 .../fetcher/optimism/withdrawal_event.ex      | 226 +++++
 .../lib/indexer/fetcher/polygon_edge.ex       |  32 +-
 .../indexer/fetcher/polygon_edge/deposit.ex   |   3 +-
 .../fetcher/polygon_edge/deposit_execute.ex   |   7 +-
 .../fetcher/polygon_edge/withdrawal.ex        |   7 +-
 .../fetcher/polygon_zkevm/bridge_l1.ex        |   4 +-
 .../fetcher/polygon_zkevm/bridge_l2.ex        |   4 +-
 .../lib/indexer/fetcher/shibarium/l1.ex       |  21 +-
 .../lib/indexer/fetcher/shibarium/l2.ex       |  10 +-
 .../lib/indexer/fetcher/transaction_action.ex |   7 +-
 apps/indexer/lib/indexer/helper.ex            |  27 +-
 apps/indexer/lib/indexer/supervisor.ex        |  12 +
 .../lib/indexer/transform/addresses.ex        |   8 +-
 .../indexer/transform/optimism/withdrawals.ex |  49 +
 .../indexer/transform/polygon_zkevm/bridge.ex |   6 +-
 .../lib/indexer/transform/shibarium/bridge.ex |   6 +-
 .../lib/indexer/transform/token_transfers.ex  |  15 +-
 apps/indexer/mix.exs                          |  15 +-
 config/config_helper.exs                      |   1 +
 config/runtime.exs                            |  35 +
 config/runtime/dev.exs                        |   7 +
 config/runtime/prod.exs                       |   6 +
 cspell.json                                   |   5 +
 docker-compose/envs/common-blockscout.env     |  14 +
 mix.lock                                      |   1 +
 112 files changed, 5754 insertions(+), 632 deletions(-)
 create mode 100644 .github/workflows/release-optimism.yml
 create mode 100644 apps/block_scout_web/lib/block_scout_web/channels/optimism_deposit_channel.ex
 create mode 100644 apps/block_scout_web/lib/block_scout_web/controllers/api/v2/optimism_controller.ex
 create mode 100644 apps/block_scout_web/lib/block_scout_web/views/api/v2/optimism_view.ex
 create mode 100644 apps/explorer/lib/explorer/chain/cache/optimism_finalization_period.ex
 create mode 100644 apps/explorer/lib/explorer/chain/import/runner/optimism/deposits.ex
 create mode 100644 apps/explorer/lib/explorer/chain/import/runner/optimism/frame_sequences.ex
 create mode 100644 apps/explorer/lib/explorer/chain/import/runner/optimism/output_roots.ex
 create mode 100644 apps/explorer/lib/explorer/chain/import/runner/optimism/txn_batches.ex
 create mode 100644 apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawal_events.ex
 create mode 100644 apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawals.ex
 create mode 100644 apps/explorer/lib/explorer/chain/optimism/deposit.ex
 create mode 100644 apps/explorer/lib/explorer/chain/optimism/frame_sequence.ex
 create mode 100644 apps/explorer/lib/explorer/chain/optimism/output_root.ex
 create mode 100644 apps/explorer/lib/explorer/chain/optimism/txn_batch.ex
 create mode 100644 apps/explorer/lib/explorer/chain/optimism/withdrawal.ex
 create mode 100644 apps/explorer/lib/explorer/chain/optimism/withdrawal_event.ex
 create mode 100644 apps/explorer/priv/optimism/migrations/20220204060243_transaction_columns_to_support_l2.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230131115105_add_op_output_roots_table.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230206123308_add_op_withdrawals_table.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230212162845_add_op_withdrawal_events_table.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230216135703_add_op_transaction_batches_table.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230220202107_create_op_deposits.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230301105051_rename_fields.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230303125841_add_op_indexes.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230307090655_add_op_frame_sequences_table.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20230731130103_modify_collated_gas_price_constraint.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20231025102325_add_op_withdrawal_index.exs
 create mode 100644 apps/explorer/priv/optimism/migrations/20240124124644_remove_op_epoch_number_field.exs
 create mode 100644 apps/indexer/lib/indexer/fetcher/optimism.ex
 create mode 100644 apps/indexer/lib/indexer/fetcher/optimism/deposit.ex
 create mode 100644 apps/indexer/lib/indexer/fetcher/optimism/output_root.ex
 create mode 100644 apps/indexer/lib/indexer/fetcher/optimism/txn_batch.ex
 create mode 100644 apps/indexer/lib/indexer/fetcher/optimism/withdrawal.ex
 create mode 100644 apps/indexer/lib/indexer/fetcher/optimism/withdrawal_event.ex
 create mode 100644 apps/indexer/lib/indexer/transform/optimism/withdrawals.ex

diff --git a/.github/workflows/config.yml b/.github/workflows/config.yml
index 4f22355b41..f0dc78055c 100644
--- a/.github/workflows/config.yml
+++ b/.github/workflows/config.yml
@@ -48,7 +48,7 @@ jobs:
         run: |
           echo "matrix=$matrixStringifiedObject" >> $GITHUB_OUTPUT
         env:
-          matrixStringifiedObject: '{"chain-type": ["ethereum", "polygon_edge", "polygon_zkevm", "rsk", "suave", "stability", "filecoin"]}'
+          matrixStringifiedObject: '{"chain-type": ["ethereum", "polygon_edge", "polygon_zkevm", "rsk", "suave", "stability", "filecoin", "optimism"]}'
 
   build-and-cache:
     name: Build and Cache deps
diff --git a/.github/workflows/publish-docker-image-for-optimism.yml b/.github/workflows/publish-docker-image-for-optimism.yml
index c47114afc5..1336180876 100644
--- a/.github/workflows/publish-docker-image-for-optimism.yml
+++ b/.github/workflows/publish-docker-image-for-optimism.yml
@@ -39,4 +39,5 @@ jobs:
             ADMIN_PANEL_ENABLED=false
             CACHE_ADDRESS_WITH_BALANCES_UPDATE_INTERVAL=
             BLOCKSCOUT_VERSION=v${{ env.RELEASE_VERSION }}-beta.+commit.${{ env.SHORT_SHA }}
-            RELEASE_VERSION=${{ env.RELEASE_VERSION }}
\ No newline at end of file
+            RELEASE_VERSION=${{ env.RELEASE_VERSION }}
+            CHAIN_TYPE=optimism
\ No newline at end of file
diff --git a/.github/workflows/release-optimism.yml b/.github/workflows/release-optimism.yml
new file mode 100644
index 0000000000..ed99f43726
--- /dev/null
+++ b/.github/workflows/release-optimism.yml
@@ -0,0 +1,45 @@
+name: Release for Ethereum
+
+on:
+  release:
+    types: [published]
+
+env:
+  OTP_VERSION: ${{ vars.OTP_VERSION }}
+  ELIXIR_VERSION: ${{ vars.ELIXIR_VERSION }}
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    env:
+      RELEASE_VERSION: ${{ vars.RELEASE_VERSION }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup repo
+        uses: ./.github/actions/setup-repo
+        with:
+          docker-username: ${{ secrets.DOCKER_USERNAME }}
+          docker-password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push Docker image for Optimism
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./docker/Dockerfile
+          push: true
+          tags: blockscout/blockscout-optimism:latest, blockscout/blockscout-optimism:${{ env.RELEASE_VERSION }}
+          platforms: |
+            linux/amd64
+            linux/arm64/v8
+          build-args: |
+            CACHE_EXCHANGE_RATES_PERIOD=
+            API_V1_READ_METHODS_DISABLED=false
+            DISABLE_WEBAPP=false
+            API_V1_WRITE_METHODS_DISABLED=false
+            CACHE_TOTAL_GAS_USAGE_COUNTER_ENABLED=
+            ADMIN_PANEL_ENABLED=false
+            CACHE_ADDRESS_WITH_BALANCES_UPDATE_INTERVAL=
+            BLOCKSCOUT_VERSION=v${{ env.RELEASE_VERSION }}-beta
+            RELEASE_VERSION=${{ env.RELEASE_VERSION }}
+            CHAIN_TYPE=optimism
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cad25b874a..0c4440da5a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,12 +5,32 @@
 ### Features
 
 - [#9461](https://github.com/blockscout/blockscout/pull/9461) - Fetch blocks without internal transactions backwards
+- [#9460](https://github.com/blockscout/blockscout/pull/9460) - Optimism chain type
+- [#8702](https://github.com/blockscout/blockscout/pull/8702) - Add OP withdrawal status to transaction page in API
+- [#7200](https://github.com/blockscout/blockscout/pull/7200) - Add Optimism BedRock Deposits to the main page in API
+- [#6980](https://github.com/blockscout/blockscout/pull/6980) - Add Optimism BedRock support (Txn Batches, Output Roots, Deposits, Withdrawals)
 
 ### Fixes
 
 - [#9512](https://github.com/blockscout/blockscout/pull/9512) - Docker-compose 2.24.6 compatibility
-
-### Chore
+- [#9262](https://github.com/blockscout/blockscout/pull/9262) - Fix withdrawal status
+- [#9123](https://github.com/blockscout/blockscout/pull/9123) - Fixes in Optimism due to changed log topics type
+- [#8831](https://github.com/blockscout/blockscout/pull/8831) - Return all OP Withdrawals bound to L2 transaction
+- [#8822](https://github.com/blockscout/blockscout/pull/8822) - Hotfix for optimism_withdrawal_transaction_status function
+- [#8811](https://github.com/blockscout/blockscout/pull/8811) - Consider consensus block only when retrieving OP withdrawal transaction status
+- [#8364](https://github.com/blockscout/blockscout/pull/8364) - Fix API v2 for OP Withdrawals
+- [#8229](https://github.com/blockscout/blockscout/pull/8229) - Fix Indexer.Fetcher.OptimismTxnBatch
+- [#8208](https://github.com/blockscout/blockscout/pull/8208) - Ignore invalid frame by OP transaction batches module
+- [#8122](https://github.com/blockscout/blockscout/pull/8122) - Ignore previously handled frame by OP transaction batches module
+- [#7827](https://github.com/blockscout/blockscout/pull/7827) - Fix transaction batches module for L2 OP stack
+- [#7776](https://github.com/blockscout/blockscout/pull/7776) - Fix transactions ordering in Indexer.Fetcher.OptimismTxnBatch
+- [#7219](https://github.com/blockscout/blockscout/pull/7219) - Output L1 fields in API v2 for transaction page and fix transaction fee calculation
+- [#6699](https://github.com/blockscout/blockscout/pull/6699) - L1 tx fields fix for Goerli Optimism BedRock update
+
+### Chore
+
+- [#9260](https://github.com/blockscout/blockscout/pull/9260) - Optimism Delta upgrade support by Indexer.Fetcher.OptimismTxnBatch module
+- [#8740](https://github.com/blockscout/blockscout/pull/8740) - Add delay to Indexer.Fetcher.OptimismTxnBatch module initialization
 
 ## 6.2.2
 
diff --git a/apps/block_scout_web/lib/block_scout_web/api_router.ex b/apps/block_scout_web/lib/block_scout_web/api_router.ex
index 9b3e12dd76..403d78d3a4 100644
--- a/apps/block_scout_web/lib/block_scout_web/api_router.ex
+++ b/apps/block_scout_web/lib/block_scout_web/api_router.ex
@@ -203,11 +203,11 @@ defmodule BlockScoutWeb.ApiRouter do
       get("/", V2.TransactionController, :transactions)
       get("/watchlist", V2.TransactionController, :watchlist_transactions)
 
-      if System.get_env("CHAIN_TYPE") == "polygon_zkevm" do
+      if Application.compile_env(:explorer, :chain_type) == "polygon_zkevm" do
         get("/zkevm-batch/:batch_number", V2.TransactionController, :polygon_zkevm_batch)
       end
 
-      if System.get_env("CHAIN_TYPE") == "suave" do
+      if Application.compile_env(:explorer, :chain_type) == "suave" do
         get("/execution-node/:execution_node_hash_param", V2.TransactionController, :execution_node)
       end
 
@@ -219,7 +219,7 @@ defmodule BlockScoutWeb.ApiRouter do
       get("/:transaction_hash_param/state-changes", V2.TransactionController, :state_changes)
       get("/:transaction_hash_param/summary", V2.TransactionController, :summary)
 
-      if System.get_env("CHAIN_TYPE") == "ethereum" do
+      if Application.compile_env(:explorer, :chain_type) == "ethereum" do
         get("/:transaction_hash_param/blobs", V2.TransactionController, :blobs)
       end
     end
@@ -273,7 +273,11 @@ defmodule BlockScoutWeb.ApiRouter do
       get("/transactions/watchlist", V2.MainPageController, :watchlist_transactions)
       get("/indexing-status", V2.MainPageController, :indexing_status)
 
-      if System.get_env("CHAIN_TYPE") == "polygon_zkevm" do
+      if Application.compile_env(:explorer, :chain_type) == "optimism" do
+        get("/optimism-deposits", V2.MainPageController, :optimism_deposits)
+      end
+
+      if Application.compile_env(:explorer, :chain_type) == "polygon_zkevm" do
         get("/zkevm/batches/confirmed", V2.PolygonZkevmController, :batches_confirmed)
         get("/zkevm/batches/latest-number", V2.PolygonZkevmController, :batch_latest_number)
       end
@@ -288,8 +292,21 @@ defmodule BlockScoutWeb.ApiRouter do
       end
     end
 
+    scope "/optimism" do
+      if Application.compile_env(:explorer, :chain_type) == "optimism" do
+        get("/txn-batches", V2.OptimismController, :txn_batches)
+        get("/txn-batches/count", V2.OptimismController, :txn_batches_count)
+        get("/output-roots", V2.OptimismController, :output_roots)
+        get("/output-roots/count", V2.OptimismController, :output_roots_count)
+        get("/deposits", V2.OptimismController, :deposits)
+        get("/deposits/count", V2.OptimismController, :deposits_count)
+        get("/withdrawals", V2.OptimismController, :withdrawals)
+        get("/withdrawals/count", V2.OptimismController, :withdrawals_count)
+      end
+    end
+
     scope "/polygon-edge" do
-      if System.get_env("CHAIN_TYPE") == "polygon_edge" do
+      if Application.compile_env(:explorer, :chain_type) == "polygon_edge" do
         get("/deposits", V2.PolygonEdgeController, :deposits)
         get("/deposits/count", V2.PolygonEdgeController, :deposits_count)
         get("/withdrawals", V2.PolygonEdgeController, :withdrawals)
@@ -298,7 +315,7 @@ defmodule BlockScoutWeb.ApiRouter do
     end
 
     scope "/shibarium" do
-      if System.get_env("CHAIN_TYPE") == "shibarium" do
+      if Application.compile_env(:explorer, :chain_type) == "shibarium" do
         get("/deposits", V2.ShibariumController, :deposits)
         get("/deposits/count", V2.ShibariumController, :deposits_count)
         get("/withdrawals", V2.ShibariumController, :withdrawals)
@@ -312,7 +329,7 @@ defmodule BlockScoutWeb.ApiRouter do
     end
 
     scope "/zkevm" do
-      if System.get_env("CHAIN_TYPE") == "polygon_zkevm" do
+      if Application.compile_env(:explorer, :chain_type) == "polygon_zkevm" do
         get("/batches", V2.PolygonZkevmController, :batches)
         get("/batches/count", V2.PolygonZkevmController, :batches_count)
         get("/batches/:batch_number", V2.PolygonZkevmController, :batch)
@@ -348,7 +365,7 @@ defmodule BlockScoutWeb.ApiRouter do
     end
 
     scope "/blobs" do
-      if System.get_env("CHAIN_TYPE") == "ethereum" do
+      if Application.compile_env(:explorer, :chain_type) == "ethereum" do
         get("/:blob_hash_param", V2.BlobController, :blob)
       end
     end
diff --git a/apps/block_scout_web/lib/block_scout_web/chain.ex b/apps/block_scout_web/lib/block_scout_web/chain.ex
index 5dff1d691b..8db363d135 100644
--- a/apps/block_scout_web/lib/block_scout_web/chain.ex
+++ b/apps/block_scout_web/lib/block_scout_web/chain.ex
@@ -41,6 +41,9 @@ defmodule BlockScoutWeb.Chain do
     Wei
   }
 
+  alias Explorer.Chain.Optimism.Deposit, as: OptimismDeposit
+  alias Explorer.Chain.Optimism.OutputRoot, as: OptimismOutputRoot
+
   alias Explorer.Chain.PolygonZkevm.TransactionBatch
   alias Explorer.PagingOptions
 
@@ -337,6 +340,16 @@ defmodule BlockScoutWeb.Chain do
     [paging_options: %{@default_paging_options | key: {index}}]
   end
 
+  def paging_options(%{"nonce" => nonce_string}) when is_binary(nonce_string) do
+    case Integer.parse(nonce_string) do
+      {nonce, ""} ->
+        [paging_options: %{@default_paging_options | key: {nonce}}]
+
+      _ ->
+        [paging_options: @default_paging_options]
+    end
+  end
+
   def paging_options(%{"number" => number_string}) when is_binary(number_string) do
     case Integer.parse(number_string) do
       {number, ""} ->
@@ -347,6 +360,10 @@ defmodule BlockScoutWeb.Chain do
     end
   end
 
+  def paging_options(%{"nonce" => nonce}) when is_integer(nonce) do
+    [paging_options: %{@default_paging_options | key: {nonce}}]
+  end
+
   def paging_options(%{"number" => number}) when is_integer(number) do
     [paging_options: %{@default_paging_options | key: {number}}]
   end
@@ -404,6 +421,16 @@ defmodule BlockScoutWeb.Chain do
     end
   end
 
+  def paging_options(%{"l1_block_number" => block_number, "tx_hash" => tx_hash}) do
+    with {block_number, ""} <- Integer.parse(block_number),
+         {:ok, tx_hash} <- string_to_transaction_hash(tx_hash) do
+      [paging_options: %{@default_paging_options | key: {block_number, tx_hash}}]
+    else
+      _ ->
+        [paging_options: @default_paging_options]
+    end
+  end
+
   # clause for Polygon Edge Deposits and Withdrawals and for account's entities pagination
   def paging_options(%{"id" => id_string}) when is_binary(id_string) do
     case Integer.parse(id_string) do
@@ -602,6 +629,14 @@ defmodule BlockScoutWeb.Chain do
     %{"smart_contract_id" => smart_contract.id}
   end
 
+  defp paging_params(%OptimismDeposit{l1_block_number: l1_block_number, l2_transaction_hash: l2_tx_hash}) do
+    %{"l1_block_number" => l1_block_number, "tx_hash" => l2_tx_hash}
+  end
+
+  defp paging_params(%OptimismOutputRoot{l2_output_index: index}) do
+    %{"index" => index}
+  end
+
   defp paging_params(%SmartContract{} = smart_contract) do
     %{
       "smart_contract_id" => smart_contract.id,
@@ -615,6 +650,14 @@ defmodule BlockScoutWeb.Chain do
     %{"index" => index}
   end
 
+  defp paging_params(%{msg_nonce: nonce}) do
+    %{"nonce" => nonce}
+  end
+
+  defp paging_params(%{l2_block_number: block_number}) do
+    %{"block_number" => block_number}
+  end
+
   # clause for zkEVM batches pagination
   defp paging_params(%TransactionBatch{number: number}) do
     %{"number" => number}
diff --git a/apps/block_scout_web/lib/block_scout_web/channels/optimism_deposit_channel.ex b/apps/block_scout_web/lib/block_scout_web/channels/optimism_deposit_channel.ex
new file mode 100644
index 0000000000..3f2c513f9b
--- /dev/null
+++ b/apps/block_scout_web/lib/block_scout_web/channels/optimism_deposit_channel.ex
@@ -0,0 +1,22 @@
+defmodule BlockScoutWeb.OptimismDepositChannel do
+  @moduledoc """
+  Establishes pub/sub channel for live updates of Optimism deposit events.
+  """
+  use BlockScoutWeb, :channel
+
+  intercept(["deposits"])
+
+  def join("optimism_deposits:new_deposits", _params, socket) do
+    {:ok, %{}, socket}
+  end
+
+  def handle_out(
+        "deposits",
+        %{deposits: deposits},
+        %Phoenix.Socket{handler: BlockScoutWeb.UserSocketV2} = socket
+      ) do
+    push(socket, "deposits", %{deposits: Enum.count(deposits)})
+
+    {:noreply, socket}
+  end
+end
diff --git a/apps/block_scout_web/lib/block_scout_web/channels/user_socket.ex b/apps/block_scout_web/lib/block_scout_web/channels/user_socket.ex
index 6060428a79..e357674a3c 100644
--- a/apps/block_scout_web/lib/block_scout_web/channels/user_socket.ex
+++ b/apps/block_scout_web/lib/block_scout_web/channels/user_socket.ex
@@ -5,6 +5,7 @@ defmodule BlockScoutWeb.UserSocket do
   channel("addresses:*", BlockScoutWeb.AddressChannel)
   channel("blocks:*", BlockScoutWeb.BlockChannel)
   channel("exchange_rate:*", BlockScoutWeb.ExchangeRateChannel)
+  channel("optimism_deposits:*", BlockScoutWeb.OptimismDepositChannel)
   channel("rewards:*", BlockScoutWeb.RewardChannel)
   channel("transactions:*", BlockScoutWeb.TransactionChannel)
   channel("tokens:*", BlockScoutWeb.TokenChannel)
diff --git a/apps/block_scout_web/lib/block_scout_web/channels/user_socket_v2.ex b/apps/block_scout_web/lib/block_scout_web/channels/user_socket_v2.ex
index ec3e5460ec..740b716dc3 100644
--- a/apps/block_scout_web/lib/block_scout_web/channels/user_socket_v2.ex
+++ b/apps/block_scout_web/lib/block_scout_web/channels/user_socket_v2.ex
@@ -7,6 +7,7 @@ defmodule BlockScoutWeb.UserSocketV2 do
   channel("addresses:*", BlockScoutWeb.AddressChannel)
   channel("blocks:*", BlockScoutWeb.BlockChannel)
   channel("exchange_rate:*", BlockScoutWeb.ExchangeRateChannel)
+  channel("optimism_deposits:*", BlockScoutWeb.OptimismDepositChannel)
   channel("rewards:*", BlockScoutWeb.RewardChannel)
   channel("transactions:*", BlockScoutWeb.TransactionChannel)
   channel("tokens:*", BlockScoutWeb.TokenChannel)
diff --git a/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/main_page_controller.ex b/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/main_page_controller.ex
index 0e06f6e058..e6fdbe0996 100644
--- a/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/main_page_controller.ex
+++ b/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/main_page_controller.ex
@@ -2,8 +2,9 @@ defmodule BlockScoutWeb.API.V2.MainPageController do
   use Phoenix.Controller
 
   alias Explorer.{Chain, PagingOptions}
-  alias BlockScoutWeb.API.V2.{BlockView, TransactionView}
+  alias BlockScoutWeb.API.V2.{BlockView, OptimismView, TransactionView}
   alias Explorer.{Chain, Repo}
+  alias Explorer.Chain.Optimism.Deposit
 
   import BlockScoutWeb.Account.AuthController, only: [current_user: 1]
   import Explorer.MicroserviceInterfaces.BENS, only: [maybe_preload_ens: 1]
@@ -36,6 +37,19 @@ defmodule BlockScoutWeb.API.V2.MainPageController do
     |> render(:blocks, %{blocks: blocks |> maybe_preload_ens()})
   end
 
+  def optimism_deposits(conn, _params) do
+    recent_deposits =
+      Deposit.list(
+        paging_options: %PagingOptions{page_size: 6},
+        api?: true
+      )
+
+    conn
+    |> put_status(200)
+    |> put_view(OptimismView)
+    |> render(:optimism_deposits, %{deposits: recent_deposits})
+  end
+
   def transactions(conn, _params) do
     recent_transactions = Chain.recent_collated_transactions(false, @transactions_options)
 
diff --git a/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/optimism_controller.ex b/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/optimism_controller.ex
new file mode 100644
index 0000000000..ef3bfe0d68
--- /dev/null
+++ b/apps/block_scout_web/lib/block_scout_web/controllers/api/v2/optimism_controller.ex
@@ -0,0 +1,111 @@
+defmodule BlockScoutWeb.API.V2.OptimismController do
+  use BlockScoutWeb, :controller
+
+  import BlockScoutWeb.Chain,
+    only: [
+      next_page_params: 3,
+      paging_options: 1,
+      split_list_by_page: 1
+    ]
+
+  alias Explorer.Chain
+  alias Explorer.Chain.Optimism.{Deposit, OutputRoot, TxnBatch, Withdrawal}
+
+  action_fallback(BlockScoutWeb.API.V2.FallbackController)
+
+  def txn_batches(conn, params) do
+    {batches, next_page} =
+      params
+      |> paging_options()
+      |> Keyword.put(:api?, true)
+      |> TxnBatch.list()
+      |> split_list_by_page()
+
+    next_page_params = next_page_params(next_page, batches, params)
+
+    conn
+    |> put_status(200)
+    |> render(:optimism_txn_batches, %{
+      batches: batches,
+      next_page_params: next_page_params
+    })
+  end
+
+  def txn_batches_count(conn, _params) do
+    items_count(conn, TxnBatch)
+  end
+
+  def output_roots(conn, params) do
+    {roots, next_page} =
+      params
+      |> paging_options()
+      |> Keyword.put(:api?, true)
+      |> OutputRoot.list()
+      |> split_list_by_page()
+
+    next_page_params = next_page_params(next_page, roots, params)
+
+    conn
+    |> put_status(200)
+    |> render(:optimism_output_roots, %{
+      roots: roots,
+      next_page_params: next_page_params
+    })
+  end
+
+  def output_roots_count(conn, _params) do
+    items_count(conn, OutputRoot)
+  end
+
+  def deposits(conn, params) do
+    {deposits, next_page} =
+      params
+      |> paging_options()
+      |> Keyword.put(:api?, true)
+      |> Deposit.list()
+      |> split_list_by_page()
+
+    next_page_params = next_page_params(next_page, deposits, params)
+
+    conn
+    |> put_status(200)
+    |> render(:optimism_deposits, %{
+      deposits: deposits,
+      next_page_params: next_page_params
+    })
+  end
+
+  def deposits_count(conn, _params) do
+    items_count(conn, Deposit)
+  end
+
+  def withdrawals(conn, params) do
+    {withdrawals, next_page} =
+      params
+      |> paging_options()
+      |> Keyword.put(:api?, true)
+      |> Withdrawal.list()
+      |> split_list_by_page()
+
+    next_page_params = next_page_params(next_page, withdrawals, params)
+
+    conn
+    |> put_status(200)
+    |> render(:optimism_withdrawals, %{
+      withdrawals: withdrawals,
+      next_page_params: next_page_params
+    })
+  end
+
+  def withdrawals_count(conn, _params) do
+    items_count(conn, Withdrawal)
+  end
+
+  defp items_count(conn, module) do
+    count = Chain.get_table_rows_total_count(module, api?: true)
+
+    conn
+    |> put_status(200)
+    |> render(:optimism_items_count, %{count: count})
+  end
+end
diff --git a/apps/block_scout_web/lib/block_scout_web/notifier.ex b/apps/block_scout_web/lib/block_scout_web/notifier.ex
index b9e5df6ca6..ca7027ae89 100644
--- a/apps/block_scout_web/lib/block_scout_web/notifier.ex
+++ b/apps/block_scout_web/lib/block_scout_web/notifier.ex
@@ -232,6 +232,10 @@ defmodule BlockScoutWeb.Notifier do
     Endpoint.broadcast("addresses:#{to_string(address_hash)}", "changed_bytecode", %{})
   end
 
+  def handle_event({:chain_event, :optimism_deposits, :realtime, deposits}) do
+    broadcast_optimism_deposits(deposits, "optimism_deposits:new_deposits", "deposits")
+  end
+
   def handle_event({:chain_event, :smart_contract_was_verified = event, :on_demand, [address_hash]}) do
     broadcast_automatic_verification_events(event, address_hash)
   end
@@ -400,6 +404,10 @@ defmodule BlockScoutWeb.Notifier do
     end
   end
 
+  defp broadcast_optimism_deposits(deposits, deposit_channel, event) do
+    Endpoint.broadcast(deposit_channel, event, %{deposits: deposits})
+  end
+
   defp broadcast_transactions_websocket_v2(transactions) do
     pending_transactions =
       Enum.filter(transactions, fn
diff --git a/apps/block_scout_web/lib/block_scout_web/realtime_event_handler.ex b/apps/block_scout_web/lib/block_scout_web/realtime_event_handler.ex
index 1fedc2dc3d..b08f50e48b 100644
--- a/apps/block_scout_web/lib/block_scout_web/realtime_event_handler.ex
+++ b/apps/block_scout_web/lib/block_scout_web/realtime_event_handler.ex
@@ -19,6 +19,7 @@ defmodule BlockScoutWeb.RealtimeEventHandler do
     Subscriber.to(:block_rewards, :realtime)
     Subscriber.to(:internal_transactions, :realtime)
     Subscriber.to(:internal_transactions, :on_demand)
+    Subscriber.to(:optimism_deposits, :realtime)
     Subscriber.to(:token_transfers, :realtime)
     Subscriber.to(:addresses, :on_demand)
     Subscriber.to(:address_coin_balances, :on_demand)
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/block/_tile.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/block/_tile.html.eex
index 452c73a3fe..419ac616db 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/block/_tile.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/block/_tile.html.eex
@@ -33,7 +33,7 @@
           <span class="mr-2"> <%= Cldr.Unit.new!(:byte, @block.size) |> cldr_unit_to_string!() %> </span>
         <% end %>
         <!-- age -->
-        <span data-from-now="<%= @block.timestamp %>"></span>
+        <span data-test="data-from-now" data-from-now="<%= @block.timestamp %>"></span>
       </div>
       <%= if !Application.get_env(:block_scout_web, :hide_block_miner) do %>
         <div class="text-nowrap text-truncate mt-3 mt-md-0">
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/chain/show.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/chain/show.html.eex
index 33b1995cfa..9216229bc4 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/chain/show.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/chain/show.html.eex
@@ -92,18 +92,20 @@
       <!-- Stats -->
       <div class="dashboard-banner-network-plain-container">
         <div class="dashboard-banner-network-stats">
-          <%= case @average_block_time do %>
-            <% {:error, :disabled} -> %>
-              <%= nil %>
-            <% average_block_time -> %>
-              <div class="dashboard-banner-network-stats-item dashboard-banner-network-stats-item-1">
-                <span class="dashboard-banner-network-stats-label">
-                  <%= gettext "Average block time" %>
-                </span>
-                <span class="dashboard-banner-network-stats-value" data-selector="average-block-time">
-                  <%= Timex.format_duration(average_block_time, Explorer.Counters.AverageBlockTimeDurationFormat) %>
-                </span>
-              </div>
+          <%= unless Application.get_env(:explorer, :chain_type) == "optimism" do %>
+            <%= case @average_block_time do %>
+              <% {:error, :disabled} -> %>
+                <%= nil %>
+              <% average_block_time -> %>
+                <div class="dashboard-banner-network-stats-item dashboard-banner-network-stats-item-1">
+                  <span class="dashboard-banner-network-stats-label">
+                    <%= gettext "Average block time" %>
+                  </span>
+                  <span class="dashboard-banner-network-stats-value" data-selector="average-block-time">
+                    <%= Timex.format_duration(average_block_time, Explorer.Counters.AverageBlockTimeDurationFormat) %>
+                  </span>
+                </div>
+            <% end %>
           <% end %>
           <div class="dashboard-banner-network-stats-item dashboard-banner-network-stats-item-2">
             <span class="dashboard-banner-network-stats-label">
@@ -172,7 +174,7 @@
         <div hidden data-selector="loading-message" class="col-lg-3" >
          <div data-selector="chain-block">
            <div class="tile tile-type-block n-p d-flex flex-column">
-             <a class="tile-title"><span class="tile-loader tile-label-loader"></span> </a> 
+             <a class="tile-title"><span class="tile-loader tile-label-loader"></span> </a>
              <div class="tile-bottom-contents">
                <div class="dark-block-loader"></div>
                <div class="dark-block-loader"></div>
@@ -183,7 +185,7 @@
         <div hidden data-selector="loading-message" class="col-lg-3" >
          <div data-selector="chain-block">
            <div class="tile tile-type-block n-p d-flex flex-column">
-             <a class="tile-title"><span class="tile-loader tile-label-loader"></span> </a> 
+             <a class="tile-title"><span class="tile-loader tile-label-loader"></span> </a>
              <div class="tile-bottom-contents">
                <div class="dark-block-loader"></div>
                <div class="dark-block-loader"></div>
@@ -201,7 +203,7 @@
             </div>
            </div>
          </div>
-        </div>   
+        </div>
       </div>
     </div>
   </div>
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/internal_transaction/_tile.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/internal_transaction/_tile.html.eex
index 27ede917dd..3c23ba78c6 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/internal_transaction/_tile.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/internal_transaction/_tile.html.eex
@@ -33,7 +33,7 @@
           to: block_path(BlockScoutWeb.Endpoint, :show, @internal_transaction.block_number)
         ) %>
       </span>
-      <span class="mr-2 mr-md-0 order-2" in-tile data-from-now="<%= @internal_transaction.block.timestamp %>"></span>
+      <span class="mr-2 mr-md-0 order-2" in-tile data-test="data-from-now" data-from-now="<%= @internal_transaction.block.timestamp %>"></span>
       <%= if assigns[:current_address] do %>
         <span class="mr-2 mr-md-0 order-0 order-md-3">
           <%= if assigns[:current_address].hash == @internal_transaction.from_address_hash do %>
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex
index 1f8707d57f..7df4369402 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex
@@ -83,7 +83,7 @@
               </span>
               <%= gettext("Tokens") %>
             </a>
-            <div class="dropdown-menu" aria-labeledby="navbarTransactionsDropdown"> 
+            <div class="dropdown-menu" aria-labeledby="navbarTransactionsDropdown">
               <%= link(
                     gettext("All"),
                     class: "dropdown-item #{tab_status("tokens", @conn.request_path)}",
@@ -105,7 +105,7 @@
               </span>
               <%= gettext("APIs") %>
             </a>
-            <div class="dropdown-menu" aria-labeledby="navbarTransactionsDropdown"> 
+            <div class="dropdown-menu" aria-labeledby="navbarTransactionsDropdown">
               <%= link(
                     gettext("GraphQL"),
                     class: "dropdown-item #{tab_status("graphiql", @conn.request_path)}",
@@ -160,24 +160,24 @@
             </span>
             <%= subnetwork_title() %>
           </a>
-          <div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdown"> 
+          <div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdown">
             <%= if Enum.count(main_nets) > 0 do %>
-              <a class="dropdown-item header division">Mainnets</a> 
-              <%= for %{url: url, title: title} <- main_nets do %>  
+              <a class="dropdown-item header division">Mainnets</a>
+              <%= for %{url: url, title: title} <- main_nets do %>
                 <a class="dropdown-item" href="<%= url %>"><%= title %></a>
               <% end %>
             <% end %>
             <%= if Enum.count(test_nets) > 0 do %>
-              <a class="dropdown-item header division">Testnets</a> 
-              <%= for %{url: url, title: title} <- test_nets do %> 
+              <a class="dropdown-item header division">Testnets</a>
+              <%= for %{url: url, title: title} <- test_nets do %>
                 <a class="dropdown-item" href="<%= url %>"><%= title %></a>
               <% end %>
             <% end %>
             <%= if Enum.count(other_nets) > 0 do %>
-              <a class="dropdown-item header division">Other Networks</a> 
-              <%= for %{url: url, title: title} <- other_nets do %>  
+              <a class="dropdown-item header division">Other Networks</a>
+              <%= for %{url: url, title: title} <- other_nets do %>
                 <a class="dropdown-item" href="<%= url %>"><%= title %></a>
-              <% end %> 
+              <% end %>
             <% end %>
           </div>
         </li>
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/transaction/_pending_tile.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/transaction/_pending_tile.html.eex
index d1b33ffeeb..fd1a1496f1 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/transaction/_pending_tile.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/transaction/_pending_tile.html.eex
@@ -18,7 +18,7 @@
       </span>
       <span class="d-flex flex-md-row flex-column mt-3 mt-md-0">
         <span class="tile-title"><%= BlockScoutWeb.TransactionView.value(@transaction, include_label: false) %> <%= Explorer.coin_name() %></span>
-        <span class="ml-0 ml-md-1 text-nowrap"> <%= BlockScoutWeb.TransactionView.formatted_fee(@transaction, denomination: :ether, include_label: false) %> <%= gettext "TX Fee" %></span>
+        <span class="ml-0 ml-md-1 text-nowrap" data-test="tx-fee"> <%= BlockScoutWeb.TransactionView.formatted_fee(@transaction, denomination: :ether, include_label: false) %> <%= gettext "TX Fee" %></span>
       </span>
     </div>
   </div>
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/transaction/_tile.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/transaction/_tile.html.eex
index c582d67474..d7fa7e29c3 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/transaction/_tile.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/transaction/_tile.html.eex
@@ -48,7 +48,7 @@
         <span class="tile-title">
           <%= value(@transaction, include_label: false) %> <%= Explorer.coin_name() %>
         </span>
-        <span class="ml-0 ml-md-1 text-nowrap">
+        <span class="ml-0 ml-md-1 text-nowrap" data-test="tx-fee">
           <%= formatted_fee(@transaction, denomination: :ether, include_label: false) %> <%= gettext "TX Fee" %>
         </span>
       </span>
@@ -80,7 +80,7 @@
       <span class="mr-2 mr-md-0 order-1">
         <%= @transaction |> block_number() |> BlockScoutWeb.RenderHelper.render_partial() %>
       </span>
-      <span class="mr-2 mr-md-0 order-2" in-tile data-from-now="<%= block_timestamp(@transaction) %>"></span>
+      <span class="mr-2 mr-md-0 order-2" in-tile data-test="data-from-now" data-from-now="<%= block_timestamp(@transaction) %>"></span>
       <%= if from_or_to_address?(@transaction, assigns[:current_address]) do %>
         <span class="mr-2 mr-md-0 order-0 order-md-3">
           <%= if @transaction.from_address_hash == assigns[:current_address].hash do %>
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
index ebd4a61cad..72fa05e3b9 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
@@ -195,6 +195,26 @@
               </dd>
             </dl>
           <% end %>
+          <%= if Application.get_env(:explorer, :chain_type) == "optimism" && @transaction.l1_block_number do %>
+            <!-- L1 Block -->
+            <dl class="row">
+              <dt class="col-sm-3 col-lg-2 text-muted">
+                <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                  text: gettext("Block number containing the transaction on L1.") %>
+                <%= gettext "L1 Block" %></dt>
+              <dd class="col-sm-9 col-lg-10" data-selector="block-number">
+                <%= if block do %>
+                  <%= link(
+                        @transaction.l1_block_number,
+                        class: "transaction__link",
+                        to: "https://eth-goerli.blockscout.com/block/#{@transaction.l1_block_number}"
+                      ) %>
+                <% else %>
+                  <%= formatted_result(status) %>
+                <% end %>
+              </dd>
+            </dl>
+          <% end %>
           <!-- Transaction Action -->
           <% %{transaction_actions: transaction_actions} = transaction_actions(@transaction) %>
           <%= if not Enum.empty?(transaction_actions) do %>
@@ -371,12 +391,18 @@
               <% end %>
             </dd>
           </dl>
-          <!-- Gas Price -->
+          <!-- L1/L2 Gas Price -->
           <dl class="row">
             <dt class="col-sm-3 col-lg-2 text-muted">
-              <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
-                text: gettext("Price per unit of gas specified by the sender. Higher gas prices can prioritize transaction inclusion during times of high usage.") %>
-              <%= gettext "Gas Price" %>
+              <%= if Application.get_env(:explorer, :chain_type) == "optimism" do %>
+                <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                  text: gettext("Price per unit of gas specified by the sender on L2. Higher gas prices can prioritize transaction inclusion during times of high usage.") %>
+                <%= gettext "L2 Gas Price" %>
+              <% else %>
+                <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                  text: gettext("Price per unit of gas specified by the sender. Higher gas prices can prioritize transaction inclusion during times of high usage.") %>
+                <%= gettext "Gas Price" %>
+              <% end %>
             </dt>
             <dd class="col-sm-9 col-lg-10"> <%= gas_price(@transaction, :gwei) %> </dd>
           </dl>
@@ -394,9 +420,15 @@
           <!-- Gas Limit -->
           <dl class="row">
             <dt class="col-sm-3 col-lg-2 text-muted">
-              <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
-                text: gettext("Maximum gas amount approved for the transaction.") %>
-              <%= gettext "Gas Limit" %>
+              <%= if Application.get_env(:explorer, :chain_type) == "optimism" do %>
+                <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                  text: gettext("Maximum gas amount approved for the transaction on L2.") %>
+                <%= gettext "L2 Gas Limit" %>
+              <% else %>
+                <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                  text: gettext("Maximum gas amount approved for the transaction.") %>
+                <%= gettext "Gas Limit" %>
+              <% end %>
             </dt>
             <dd class="col-sm-9 col-lg-10"> <%= format_gas_limit(@transaction.gas) %> </dd>
           </dl>
@@ -444,16 +476,57 @@
               </dd>
             </dl>
           <% end %>
-          <!-- Gas Used by Transaction -->
+          <!-- L1/L2 Gas Used by Transaction -->
           <dl class="row">
             <dt class="col-sm-3 col-lg-2 text-muted transaction-gas-used">
-              <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
-                text: gettext("Actual gas amount used by the transaction.") %>
-              <%= gettext "Gas Used by Transaction" %>
+              <%= if Application.get_env(:explorer, :chain_type) == "optimism" do %>
+                <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                  text: gettext("Actual gas amount used by the transaction on L2.") %>
+                <%= gettext "L2 Gas Used by Transaction" %>
+              <% else %>
+                <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                  text: gettext("Actual gas amount used by the transaction.") %>
+                <%= gettext "Gas Used by Transaction" %>
+              <% end %>
             </dt>
             <% gas_used_perc = gas_used_perc(@transaction) %>
             <dd class="col-sm-9 col-lg-10"> <%= gas_used(@transaction) %> <%= if gas_used_perc, do: "| #{gas_used_perc}%" %></dd>
           </dl>
+          <%= if Application.get_env(:explorer, :chain_type) == "optimism" do %>
+            <%= if @transaction.l1_gas_used do %>
+              <!-- L1 Gas Used by Transaction -->
+              <dl class="row">
+                <dt class="col-sm-3 col-lg-2 text-muted transaction-gas-used">
+                  <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                    text: gettext("L1 Gas Used by Transaction") %>
+                  <%= gettext "L1 Gas Used by Transaction" %>
+                </dt>
+                <dd class="col-sm-9 col-lg-10"> <%= l1_gas_used(@transaction) %></dd>
+              </dl>
+            <% end %>
+            <%= if @transaction.l1_gas_used do %>
+              <!-- L1 Gas Price -->
+              <dl class="row">
+                <dt class="col-sm-3 col-lg-2 text-muted">
+                  <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                    text: gettext("L1 Gas Price") %>
+                  <%= gettext "L1 Gas Price" %>
+                </dt>
+                <dd class="col-sm-9 col-lg-10"> <%= l1_gas_price(@transaction, :gwei) %> </dd>
+              </dl>
+            <% end %>
+            <%= if @transaction.l1_fee_scalar do %>
+              <!-- L1 Fee Scalar -->
+              <dl class="row">
+                <dt class="col-sm-3 col-lg-2 text-muted">
+                  <%= render BlockScoutWeb.CommonComponentsView, "_i_tooltip_2.html",
+                    text: gettext("L1 Fee Scalar") %>
+                  <%= gettext "L1 Fee Scalar" %>
+                </dt>
+                <dd class="col-sm-9 col-lg-10"> <%= @transaction.l1_fee_scalar %> </dd>
+              </dl>
+            <% end %>
+          <% end %>
           <!-- Nonce, Index in Block -->
           <dl class="row">
             <dt class="col-sm-3 col-lg-2 text-muted">
diff --git a/apps/block_scout_web/lib/block_scout_web/views/api/v2/optimism_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api/v2/optimism_view.ex
new file mode 100644
index 0000000000..b1d003a1f1
--- /dev/null
+++ b/apps/block_scout_web/lib/block_scout_web/views/api/v2/optimism_view.ex
@@ -0,0 +1,149 @@
+defmodule BlockScoutWeb.API.V2.OptimismView do
+  use BlockScoutWeb, :view
+
+  import Ecto.Query, only: [from: 2]
+
+  alias BlockScoutWeb.API.V2.Helper
+  alias Explorer.{Chain, Repo}
+  alias Explorer.Chain.{Block, Transaction}
+  alias Explorer.Chain.Optimism.Withdrawal
+
+  def render("optimism_txn_batches.json", %{
+        batches: batches,
+        next_page_params: next_page_params
+      }) do
+    items =
+      batches
+      |> Enum.map(fn batch ->
+        Task.async(fn ->
+          tx_count =
+            Repo.replica().aggregate(
+              from(
+                t in Transaction,
+                inner_join: b in Block,
+                on: b.hash == t.block_hash and b.consensus == true,
+                where: t.block_number == ^batch.l2_block_number
+              ),
+              :count,
+              timeout: :infinity
+            )
+
+          %{
+            "l2_block_number" => batch.l2_block_number,
+            "tx_count" => tx_count,
+            "l1_tx_hashes" => batch.frame_sequence.l1_transaction_hashes,
+            "l1_timestamp" => batch.frame_sequence.l1_timestamp
+          }
+        end)
+      end)
+      |> Task.yield_many(:infinity)
+      |> Enum.map(fn {_task, {:ok, item}} -> item end)
+
+    %{
+      items: items,
+      next_page_params: next_page_params
+    }
+  end
+
+  def render("optimism_output_roots.json", %{
+        roots: roots,
+        next_page_params: next_page_params
+      }) do
+    %{
+      items:
+        Enum.map(roots, fn r ->
+          %{
+            "l2_output_index" => r.l2_output_index,
+            "l2_block_number" => r.l2_block_number,
+            "l1_tx_hash" => r.l1_transaction_hash,
+            "l1_timestamp" => r.l1_timestamp,
+            "l1_block_number" => r.l1_block_number,
+            "output_root" => r.output_root
+          }
+        end),
+      next_page_params: next_page_params
+    }
+  end
+
+  def render("optimism_deposits.json", %{
+        deposits: deposits,
+        next_page_params: next_page_params
+      }) do
+    %{
+      items:
+        Enum.map(deposits, fn deposit ->
+          %{
+            "l1_block_number" => deposit.l1_block_number,
+            "l2_tx_hash" => deposit.l2_transaction_hash,
+            "l1_block_timestamp" => deposit.l1_block_timestamp,
+            "l1_tx_hash" => deposit.l1_transaction_hash,
+            "l1_tx_origin" => deposit.l1_transaction_origin,
+            "l2_tx_gas_limit" => deposit.l2_transaction.gas
+          }
+        end),
+      next_page_params: next_page_params
+    }
+  end
+
+  def render("optimism_deposits.json", %{deposits: deposits}) do
+    Enum.map(deposits, fn deposit ->
+      %{
+        "l1_block_number" => deposit.l1_block_number,
+        "l1_block_timestamp" => deposit.l1_block_timestamp,
+        "l1_tx_hash" => deposit.l1_transaction_hash,
+        "l2_tx_hash" => deposit.l2_transaction_hash
+      }
+    end)
+  end
+
+  def render("optimism_withdrawals.json", %{
+        withdrawals: withdrawals,
+        next_page_params: next_page_params,
+        conn: conn
+      }) do
+    %{
+      items:
+        Enum.map(withdrawals, fn w ->
+          msg_nonce =
+            Bitwise.band(
+              Decimal.to_integer(w.msg_nonce),
+              0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
+            )
+
+          msg_nonce_version = Bitwise.bsr(Decimal.to_integer(w.msg_nonce), 240)
+
+          {from_address, from_address_hash} =
+            with false <- is_nil(w.from),
+                 {:ok, address} <-
+                   Chain.hash_to_address(
+                     w.from,
+                     [necessity_by_association: %{:names => :optional, :smart_contract => :optional}, api?: true],
+                     false
+                   ) do
+              {address, address.hash}
+            else
+              _ -> {nil, nil}
+            end
+
+          {status, challenge_period_end} = Withdrawal.status(w)
+
+          %{
+            "msg_nonce_raw" => Decimal.to_string(w.msg_nonce, :normal),
+            "msg_nonce" => msg_nonce,
+            "msg_nonce_version" => msg_nonce_version,
+            "from" => Helper.address_with_info(conn, from_address, from_address_hash, w.from),
+            "l2_tx_hash" => w.l2_transaction_hash,
+            "l2_timestamp" => w.l2_timestamp,
+            "status" => status,
+            "l1_tx_hash" => w.l1_transaction_hash,
+            "challenge_period_end" => challenge_period_end
+          }
+        end),
+      next_page_params: next_page_params
+    }
+  end
+
+  def render("optimism_items_count.json", %{count: count}) do
+    count
+  end
+end
diff --git a/apps/block_scout_web/lib/block_scout_web/views/api/v2/transaction_view.ex b/apps/block_scout_web/lib/block_scout_web/views/api/v2/transaction_view.ex
index 5eea21c5a6..a1d8c50082 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/api/v2/transaction_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/api/v2/transaction_view.ex
@@ -10,6 +10,7 @@ defmodule BlockScoutWeb.API.V2.TransactionView do
   alias Explorer.{Chain, Market}
   alias Explorer.Chain.{Address, Block, InternalTransaction, Log, Token, Transaction, Wei}
   alias Explorer.Chain.Block.Reward
+  alias Explorer.Chain.Optimism.Withdrawal, as: OptimismWithdrawal
   alias Explorer.Chain.PolygonEdge.Reader
   alias Explorer.Chain.Transaction.StateChange
   alias Explorer.Counters.AverageBlockTime
@@ -440,6 +441,14 @@ defmodule BlockScoutWeb.API.V2.TransactionView do
     |> maybe_put_stability_fee(transaction)
   end
 
+  defp add_optional_transaction_field(result, transaction, field) do
+    case Map.get(transaction, field) do
+      nil -> result
+      value -> Map.put(result, Atom.to_string(field), value)
+    end
+  end
+
+  # credo:disable-for-next-line
   defp chain_type_fields(result, transaction, single_tx?, conn, watchlist_names) do
     case {single_tx?, Application.get_env(:explorer, :chain_type)} do
       {true, "polygon_edge"} ->
@@ -456,6 +465,14 @@ defmodule BlockScoutWeb.API.V2.TransactionView do
 
         Map.put(extended_result, "zkevm_status", zkevm_status(extended_result))
 
+      {true, "optimism"} ->
+        result
+        |> add_optional_transaction_field(transaction, :l1_fee)
+        |> add_optional_transaction_field(transaction, :l1_fee_scalar)
+        |> add_optional_transaction_field(transaction, :l1_gas_price)
+        |> add_optional_transaction_field(transaction, :l1_gas_used)
+        |> add_optimism_fields(transaction.hash, single_tx?)
+
       {true, "suave"} ->
         suave_fields(transaction, result, single_tx?, conn, watchlist_names)
 
@@ -564,6 +581,25 @@ defmodule BlockScoutWeb.API.V2.TransactionView do
     end
   end
 
+  defp add_optimism_fields(result, transaction_hash, single_tx?) do
+    if Application.get_env(:explorer, :chain_type) == "optimism" && single_tx? do
+      withdrawals =
+        transaction_hash
+        |> OptimismWithdrawal.transaction_statuses()
+        |> Enum.map(fn {nonce, status, l1_transaction_hash} ->
+          %{
+            "nonce" => nonce,
+            "status" => status,
+            "l1_transaction_hash" => l1_transaction_hash
+          }
+        end)
+
+      Map.put(result, "op_withdrawals", withdrawals)
+    else
+      result
+    end
+  end
+
   def token_transfers(_, _conn, false), do: nil
   def token_transfers(%NotLoaded{}, _conn, _), do: nil
 
diff --git a/apps/block_scout_web/lib/block_scout_web/views/cldr_helper/number.ex b/apps/block_scout_web/lib/block_scout_web/views/cldr_helper/number.ex
index fa3ad1f1c1..0d1c0e1e13 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/cldr_helper/number.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/cldr_helper/number.ex
@@ -17,6 +17,8 @@ defmodule BlockScoutWeb.CldrHelper.Number do
     end
   end
 
+  def to_string!(nil), do: ""
+
   def to_string!(decimal) do
     # We do this to trick Dialyzer to not complain about non-local returns caused by bug in Cldr.Number.to_string! spec
     case :erlang.phash2(1, 1) do
diff --git a/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex b/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
index 4d94264b5e..c3d7417412 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
@@ -409,12 +409,26 @@ defmodule BlockScoutWeb.TransactionView do
     format_wei_value(gas_price, unit)
   end
 
+  def l1_gas_price(transaction, unit) when unit in ~w(wei gwei ether)a do
+    case Map.get(transaction, :l1_gas_price) do
+      nil -> nil
+      value -> format_wei_value(value, unit)
+    end
+  end
+
   def gas_used(%Transaction{gas_used: nil}), do: gettext("Pending")
 
   def gas_used(%Transaction{gas_used: gas_used}) do
     Number.to_string!(gas_used)
   end
 
+  def l1_gas_used(transaction) do
+    case Map.get(transaction, :l1_gas_used) do
+      nil -> gettext("Pending")
+      value -> Number.to_string!(value)
+    end
+  end
+
   def gas_used_perc(%Transaction{gas_used: nil}), do: nil
 
   def gas_used_perc(%Transaction{gas_used: gas_used, gas: gas}) do
diff --git a/apps/block_scout_web/mix.exs b/apps/block_scout_web/mix.exs
index 56d6d8b25a..21493948ed 100644
--- a/apps/block_scout_web/mix.exs
+++ b/apps/block_scout_web/mix.exs
@@ -24,7 +24,15 @@ defmodule BlockScoutWeb.Mixfile do
       ],
       start_permanent: Mix.env() == :prod,
       version: "6.2.2",
-      xref: [exclude: [Explorer.Chain.PolygonZkevm.Reader, Explorer.Chain.Beacon.Reader]]
+      xref: [
+        exclude: [
+          Explorer.Chain.PolygonZkevm.Reader,
+          Explorer.Chain.Beacon.Reader,
+          Explorer.Chain.Cache.OptimismFinalizationPeriod,
+          Explorer.Chain.Optimism.OutputRoot,
+          Explorer.Chain.Optimism.WithdrawalEvent
+        ]
+      ]
     ]
   end
 
diff --git a/apps/block_scout_web/priv/gettext/default.pot b/apps/block_scout_web/priv/gettext/default.pot
index 3912a1c094..a36415acff 100644
--- a/apps/block_scout_web/priv/gettext/default.pot
+++ b/apps/block_scout_web/priv/gettext/default.pot
@@ -199,11 +199,6 @@ msgstr ""
 msgid "Actions"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:451
-#, elixir-autogen, elixir-format
-msgid "Actual gas amount used by the transaction."
-msgstr ""
-
 #: lib/block_scout_web/templates/account/api_key/form.html.eex:7
 #: lib/block_scout_web/templates/account/custom_abi/form.html.eex:8
 #: lib/block_scout_web/templates/layout/_add_chain_to_mm.html.eex:10
@@ -270,12 +265,12 @@ msgstr ""
 msgid "Address"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:243
+#: lib/block_scout_web/templates/transaction/overview.html.eex:263
 #, elixir-autogen, elixir-format
 msgid "Address (external or contract) receiving the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:225
+#: lib/block_scout_web/templates/transaction/overview.html.eex:245
 #, elixir-autogen, elixir-format
 msgid "Address (external or contract) sending the transaction."
 msgstr ""
@@ -346,14 +341,7 @@ msgstr ""
 msgid "All tokens in the account and total value."
 msgstr ""
 
-#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:41
-#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:32
-#: lib/block_scout_web/templates/withdrawal/index.html.eex:38
-#, elixir-autogen, elixir-format
-msgid "Amount"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:437
+#: lib/block_scout_web/templates/transaction/overview.html.eex:469
 #, elixir-autogen, elixir-format
 msgid "Amount of"
 msgstr ""
@@ -383,11 +371,6 @@ msgstr ""
 msgid "Average"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:101
-#, elixir-autogen, elixir-format
-msgid "Average block time"
-msgstr ""
-
 #: lib/block_scout_web/templates/account/api_key/form.html.eex:25
 #, elixir-autogen, elixir-format
 msgid "Back to API keys (Cancel)"
@@ -455,17 +438,7 @@ msgstr ""
 msgid "Base URL:"
 msgstr ""
 
-#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:2
-#, elixir-autogen, elixir-format
-msgid "Beacon chain withdrawals - %{subnetwork} Explorer"
-msgstr ""
-
-#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:7
-#, elixir-autogen, elixir-format
-msgid "Beacon chain, Withdrawals, %{subnetwork}, %{coin}"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:472
+#: lib/block_scout_web/templates/transaction/overview.html.eex:545
 #, elixir-autogen, elixir-format
 msgid "Binary data included with the transaction. See input / logs below for additional info."
 msgstr ""
@@ -541,7 +514,7 @@ msgstr ""
 msgid "Blockchain"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:154
+#: lib/block_scout_web/templates/chain/show.html.eex:156
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:34
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:38
 #, elixir-autogen, elixir-format
@@ -758,7 +731,7 @@ msgid "Constructor args"
 msgstr ""
 
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:52
-#: lib/block_scout_web/templates/transaction/overview.html.eex:253
+#: lib/block_scout_web/templates/transaction/overview.html.eex:273
 #, elixir-autogen, elixir-format
 msgid "Contract"
 msgstr ""
@@ -783,12 +756,12 @@ msgstr ""
 msgid "Contract Address Pending"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:483
+#: lib/block_scout_web/views/transaction_view.ex:497
 #, elixir-autogen, elixir-format
 msgid "Contract Call"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:480
+#: lib/block_scout_web/views/transaction_view.ex:494
 #, elixir-autogen, elixir-format
 msgid "Contract Creation"
 msgstr ""
@@ -909,8 +882,8 @@ msgstr ""
 #: lib/block_scout_web/templates/account/watchlist_address/row.html.eex:7
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:17
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:18
-#: lib/block_scout_web/templates/transaction/overview.html.eex:233
-#: lib/block_scout_web/templates/transaction/overview.html.eex:234
+#: lib/block_scout_web/templates/transaction/overview.html.eex:253
+#: lib/block_scout_web/templates/transaction/overview.html.eex:254
 #, elixir-autogen, elixir-format
 msgid "Copy From Address"
 msgstr ""
@@ -945,10 +918,10 @@ msgstr ""
 
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:34
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:35
-#: lib/block_scout_web/templates/transaction/overview.html.eex:260
-#: lib/block_scout_web/templates/transaction/overview.html.eex:261
-#: lib/block_scout_web/templates/transaction/overview.html.eex:268
-#: lib/block_scout_web/templates/transaction/overview.html.eex:269
+#: lib/block_scout_web/templates/transaction/overview.html.eex:280
+#: lib/block_scout_web/templates/transaction/overview.html.eex:281
+#: lib/block_scout_web/templates/transaction/overview.html.eex:288
+#: lib/block_scout_web/templates/transaction/overview.html.eex:289
 #, elixir-autogen, elixir-format
 msgid "Copy To Address"
 msgstr ""
@@ -969,20 +942,20 @@ msgstr ""
 msgid "Copy Txn Hash"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:498
+#: lib/block_scout_web/templates/transaction/overview.html.eex:571
 #, elixir-autogen, elixir-format
 msgid "Copy Txn Hex Input"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:504
+#: lib/block_scout_web/templates/transaction/overview.html.eex:577
 #, elixir-autogen, elixir-format
 msgid "Copy Txn UTF-8 Input"
 msgstr ""
 
 #: lib/block_scout_web/templates/log/_data_decoded_view.html.eex:20
 #: lib/block_scout_web/templates/transaction/_decoded_input_body.html.eex:41
-#: lib/block_scout_web/templates/transaction/overview.html.eex:497
-#: lib/block_scout_web/templates/transaction/overview.html.eex:503
+#: lib/block_scout_web/templates/transaction/overview.html.eex:570
+#: lib/block_scout_web/templates/transaction/overview.html.eex:576
 #: lib/block_scout_web/templates/transaction_raw_trace/_card_body.html.eex:8
 #, elixir-autogen, elixir-format
 msgid "Copy Value"
@@ -1411,7 +1384,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:38
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:40
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:34
-#: lib/block_scout_web/templates/transaction/overview.html.eex:226
+#: lib/block_scout_web/templates/transaction/overview.html.eex:246
 #: lib/block_scout_web/views/address_internal_transaction_view.ex:10
 #: lib/block_scout_web/views/address_token_transfer_view.ex:10
 #: lib/block_scout_web/views/address_transaction_view.ex:10
@@ -1426,16 +1399,11 @@ msgstr ""
 
 #: lib/block_scout_web/templates/block/_tile.html.eex:67
 #: lib/block_scout_web/templates/block/overview.html.eex:187
-#: lib/block_scout_web/templates/transaction/overview.html.eex:399
+#: lib/block_scout_web/templates/transaction/overview.html.eex:430
 #, elixir-autogen, elixir-format
 msgid "Gas Limit"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:379
-#, elixir-autogen, elixir-format
-msgid "Gas Price"
-msgstr ""
-
 #: lib/block_scout_web/templates/address/overview.html.eex:240
 #: lib/block_scout_web/templates/block/_tile.html.eex:73
 #: lib/block_scout_web/templates/block/overview.html.eex:178
@@ -1443,11 +1411,6 @@ msgstr ""
 msgid "Gas Used"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:452
-#, elixir-autogen, elixir-format
-msgid "Gas Used by Transaction"
-msgstr ""
-
 #: lib/block_scout_web/templates/chain/gas_price_oracle_legend_item.html.eex:3
 #: lib/block_scout_web/templates/chain/gas_price_oracle_legend_item.html.eex:18
 #, elixir-autogen, elixir-format
@@ -1495,13 +1458,13 @@ msgstr ""
 msgid "Hash"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:480
-#: lib/block_scout_web/templates/transaction/overview.html.eex:484
+#: lib/block_scout_web/templates/transaction/overview.html.eex:553
+#: lib/block_scout_web/templates/transaction/overview.html.eex:557
 #, elixir-autogen, elixir-format
 msgid "Hex (Default)"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:204
+#: lib/block_scout_web/templates/transaction/overview.html.eex:224
 #, elixir-autogen, elixir-format
 msgid "Highlighted events of the transaction."
 msgstr ""
@@ -1560,14 +1523,7 @@ msgstr ""
 msgid "Incoming"
 msgstr ""
 
-#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:29
-#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:23
-#: lib/block_scout_web/templates/withdrawal/index.html.eex:23
-#, elixir-autogen, elixir-format
-msgid "Index"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:464
+#: lib/block_scout_web/templates/transaction/overview.html.eex:537
 #, elixir-autogen, elixir-format
 msgid "Index position of Transaction in the block."
 msgstr ""
@@ -1587,7 +1543,7 @@ msgstr ""
 msgid "Input"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:245
+#: lib/block_scout_web/templates/transaction/overview.html.eex:265
 #, elixir-autogen, elixir-format
 msgid "Interacted With (To)"
 msgstr ""
@@ -1602,7 +1558,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:11
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:6
 #: lib/block_scout_web/views/address_view.ex:376
-#: lib/block_scout_web/views/transaction_view.ex:538
+#: lib/block_scout_web/views/transaction_view.ex:552
 #, elixir-autogen, elixir-format
 msgid "Internal Transactions"
 msgstr ""
@@ -1662,22 +1618,22 @@ msgstr ""
 msgid "License ID"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:331
+#: lib/block_scout_web/templates/transaction/overview.html.eex:351
 #, elixir-autogen, elixir-format
 msgid "List of ERC-1155 tokens created in the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:315
+#: lib/block_scout_web/templates/transaction/overview.html.eex:335
 #, elixir-autogen, elixir-format
 msgid "List of token burnt in the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:298
+#: lib/block_scout_web/templates/transaction/overview.html.eex:318
 #, elixir-autogen, elixir-format
 msgid "List of token minted in the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:282
+#: lib/block_scout_web/templates/transaction/overview.html.eex:302
 #, elixir-autogen, elixir-format
 msgid "List of token transferred in the transaction."
 msgstr ""
@@ -1719,7 +1675,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:17
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:8
 #: lib/block_scout_web/views/address_view.ex:387
-#: lib/block_scout_web/views/transaction_view.ex:539
+#: lib/block_scout_web/views/transaction_view.ex:553
 #, elixir-autogen, elixir-format
 msgid "Logs"
 msgstr ""
@@ -1742,12 +1698,12 @@ msgstr ""
 msgid "Market cap"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:408
+#: lib/block_scout_web/templates/transaction/overview.html.eex:440
 #, elixir-autogen, elixir-format
 msgid "Max Fee per Gas"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:418
+#: lib/block_scout_web/templates/transaction/overview.html.eex:450
 #, elixir-autogen, elixir-format
 msgid "Max Priority Fee per Gas"
 msgstr ""
@@ -1757,12 +1713,7 @@ msgstr ""
 msgid "Max of"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:398
-#, elixir-autogen, elixir-format
-msgid "Maximum gas amount approved for the transaction."
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:407
+#: lib/block_scout_web/templates/transaction/overview.html.eex:439
 #, elixir-autogen, elixir-format
 msgid "Maximum total amount per unit of gas a user is willing to pay for a transaction, including base fee and priority fee."
 msgstr ""
@@ -1824,7 +1775,7 @@ msgid "More internal transactions have come in"
 msgstr ""
 
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:46
-#: lib/block_scout_web/templates/chain/show.html.eex:217
+#: lib/block_scout_web/templates/chain/show.html.eex:219
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:13
 #: lib/block_scout_web/templates/transaction/index.html.eex:19
 #, elixir-autogen, elixir-format
@@ -1944,7 +1895,7 @@ msgid "No trace entries found."
 msgstr ""
 
 #: lib/block_scout_web/templates/block/overview.html.eex:196
-#: lib/block_scout_web/templates/transaction/overview.html.eex:462
+#: lib/block_scout_web/templates/transaction/overview.html.eex:535
 #, elixir-autogen, elixir-format
 msgid "Nonce"
 msgstr ""
@@ -2065,7 +2016,8 @@ msgstr ""
 
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:63
 #: lib/block_scout_web/views/transaction_view.ex:373
-#: lib/block_scout_web/views/transaction_view.ex:412
+#: lib/block_scout_web/views/transaction_view.ex:419
+#: lib/block_scout_web/views/transaction_view.ex:427
 #, elixir-autogen, elixir-format
 msgid "Pending"
 msgstr ""
@@ -2097,7 +2049,7 @@ msgstr ""
 msgid "Please select what types of notifications you will receive:"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:464
+#: lib/block_scout_web/templates/transaction/overview.html.eex:537
 #, elixir-autogen, elixir-format
 msgid "Position"
 msgstr ""
@@ -2134,13 +2086,8 @@ msgstr ""
 msgid "Price per token on the exchanges"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:378
-#, elixir-autogen, elixir-format
-msgid "Price per unit of gas specified by the sender. Higher gas prices can prioritize transaction inclusion during times of high usage."
-msgstr ""
-
 #: lib/block_scout_web/templates/block/overview.html.eex:225
-#: lib/block_scout_web/templates/transaction/overview.html.eex:428
+#: lib/block_scout_web/templates/transaction/overview.html.eex:460
 #, elixir-autogen, elixir-format
 msgid "Priority Fee / Tip"
 msgstr ""
@@ -2194,14 +2141,14 @@ msgstr ""
 msgid "RPC"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:473
+#: lib/block_scout_web/templates/transaction/overview.html.eex:546
 #, elixir-autogen, elixir-format
 msgid "Raw Input"
 msgstr ""
 
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:24
 #: lib/block_scout_web/templates/transaction_raw_trace/_card_body.html.eex:1
-#: lib/block_scout_web/views/transaction_view.ex:540
+#: lib/block_scout_web/views/transaction_view.ex:554
 #, elixir-autogen, elixir-format
 msgid "Raw Trace"
 msgstr ""
@@ -2319,7 +2266,7 @@ msgstr ""
 msgid "Save"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:206
+#: lib/block_scout_web/templates/transaction/overview.html.eex:226
 #, elixir-autogen, elixir-format
 msgid "Scroll to see more"
 msgstr ""
@@ -2459,7 +2406,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_withdrawal/index.html.eex:20
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:14
 #: lib/block_scout_web/templates/block_withdrawal/index.html.eex:14
-#: lib/block_scout_web/templates/chain/show.html.eex:158
+#: lib/block_scout_web/templates/chain/show.html.eex:160
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:18
 #: lib/block_scout_web/templates/tokens/holder/index.html.eex:24
 #: lib/block_scout_web/templates/tokens/instance/holder/index.html.eex:23
@@ -2477,7 +2424,7 @@ msgstr ""
 msgid "Something went wrong, click to reload."
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:223
+#: lib/block_scout_web/templates/chain/show.html.eex:225
 #, elixir-autogen, elixir-format
 msgid "Something went wrong, click to retry."
 msgstr ""
@@ -2514,7 +2461,7 @@ msgstr ""
 
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:29
 #: lib/block_scout_web/templates/transaction_state/index.html.eex:6
-#: lib/block_scout_web/views/transaction_view.ex:541
+#: lib/block_scout_web/views/transaction_view.ex:555
 #, elixir-autogen, elixir-format
 msgid "State changes"
 msgstr ""
@@ -2551,11 +2498,6 @@ msgstr ""
 msgid "TX Fee"
 msgstr ""
 
-#: lib/block_scout_web/templates/layout/_footer.html.eex:31
-#, elixir-autogen, elixir-format
-msgid "Telegram"
-msgstr ""
-
 #: lib/block_scout_web/templates/layout/_footer.html.eex:67
 #, elixir-autogen, elixir-format
 msgid "Test Networks"
@@ -2816,7 +2758,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:34
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:28
 #: lib/block_scout_web/templates/block_withdrawal/index.html.eex:29
-#: lib/block_scout_web/templates/transaction/overview.html.eex:247
+#: lib/block_scout_web/templates/transaction/overview.html.eex:267
 #: lib/block_scout_web/templates/withdrawal/index.html.eex:32
 #: lib/block_scout_web/views/address_internal_transaction_view.ex:9
 #: lib/block_scout_web/views/address_token_transfer_view.ex:9
@@ -2849,13 +2791,13 @@ msgid "Token"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:3
-#: lib/block_scout_web/views/transaction_view.ex:474
+#: lib/block_scout_web/views/transaction_view.ex:488
 #, elixir-autogen, elixir-format
 msgid "Token Burning"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:7
-#: lib/block_scout_web/views/transaction_view.ex:475
+#: lib/block_scout_web/views/transaction_view.ex:489
 #, elixir-autogen, elixir-format
 msgid "Token Creation"
 msgstr ""
@@ -2883,14 +2825,14 @@ msgid "Token ID"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:5
-#: lib/block_scout_web/views/transaction_view.ex:473
+#: lib/block_scout_web/views/transaction_view.ex:487
 #, elixir-autogen, elixir-format
 msgid "Token Minting"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:9
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:11
-#: lib/block_scout_web/views/transaction_view.ex:476
+#: lib/block_scout_web/views/transaction_view.ex:490
 #, elixir-autogen, elixir-format
 msgid "Token Transfer"
 msgstr ""
@@ -2906,7 +2848,7 @@ msgstr ""
 #: lib/block_scout_web/views/address_view.ex:378
 #: lib/block_scout_web/views/tokens/instance/overview_view.ex:114
 #: lib/block_scout_web/views/tokens/overview_view.ex:40
-#: lib/block_scout_web/views/transaction_view.ex:537
+#: lib/block_scout_web/views/transaction_view.ex:551
 #, elixir-autogen, elixir-format
 msgid "Token Transfers"
 msgstr ""
@@ -2932,22 +2874,22 @@ msgstr ""
 msgid "Tokens"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:316
+#: lib/block_scout_web/templates/transaction/overview.html.eex:336
 #, elixir-autogen, elixir-format
 msgid "Tokens Burnt"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:332
+#: lib/block_scout_web/templates/transaction/overview.html.eex:352
 #, elixir-autogen, elixir-format
 msgid "Tokens Created"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:299
+#: lib/block_scout_web/templates/transaction/overview.html.eex:319
 #, elixir-autogen, elixir-format
 msgid "Tokens Minted"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:283
+#: lib/block_scout_web/templates/transaction/overview.html.eex:303
 #, elixir-autogen, elixir-format
 msgid "Tokens Transferred"
 msgstr ""
@@ -2989,7 +2931,7 @@ msgstr ""
 msgid "Total Supply * Price"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:131
+#: lib/block_scout_web/templates/chain/show.html.eex:133
 #, elixir-autogen, elixir-format
 msgid "Total blocks"
 msgstr ""
@@ -3009,12 +2951,12 @@ msgstr ""
 msgid "Total supply"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:363
+#: lib/block_scout_web/templates/transaction/overview.html.eex:383
 #, elixir-autogen, elixir-format
 msgid "Total transaction fee."
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:110
+#: lib/block_scout_web/templates/chain/show.html.eex:112
 #, elixir-autogen, elixir-format
 msgid "Total transactions"
 msgstr ""
@@ -3022,7 +2964,7 @@ msgstr ""
 #: lib/block_scout_web/templates/account/tag_transaction/form.html.eex:11
 #: lib/block_scout_web/templates/account/tag_transaction/index.html.eex:23
 #: lib/block_scout_web/templates/address_logs/_logs.html.eex:19
-#: lib/block_scout_web/views/transaction_view.ex:486
+#: lib/block_scout_web/views/transaction_view.ex:500
 #, elixir-autogen, elixir-format
 msgid "Transaction"
 msgstr ""
@@ -3037,12 +2979,7 @@ msgstr ""
 msgid "Transaction %{transaction}, %{subnetwork} %{transaction}"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:205
-#, elixir-autogen, elixir-format
-msgid "Transaction Action"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:438
+#: lib/block_scout_web/templates/transaction/overview.html.eex:470
 #, elixir-autogen, elixir-format
 msgid "Transaction Burnt Fee"
 msgstr ""
@@ -3052,7 +2989,7 @@ msgstr ""
 msgid "Transaction Details"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:364
+#: lib/block_scout_web/templates/transaction/overview.html.eex:384
 #, elixir-autogen, elixir-format
 msgid "Transaction Fee"
 msgstr ""
@@ -3075,17 +3012,17 @@ msgstr ""
 msgid "Transaction Tags"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:388
+#: lib/block_scout_web/templates/transaction/overview.html.eex:414
 #, elixir-autogen, elixir-format
 msgid "Transaction Type"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:461
+#: lib/block_scout_web/templates/transaction/overview.html.eex:534
 #, elixir-autogen, elixir-format
 msgid "Transaction number from the sending address. Each transaction sent from an address increments the nonce by 1."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:387
+#: lib/block_scout_web/templates/transaction/overview.html.eex:413
 #, elixir-autogen, elixir-format
 msgid "Transaction type, introduced in EIP-2718."
 msgstr ""
@@ -3098,7 +3035,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:13
 #: lib/block_scout_web/templates/block/_tabs.html.eex:4
 #: lib/block_scout_web/templates/block/overview.html.eex:80
-#: lib/block_scout_web/templates/chain/show.html.eex:214
+#: lib/block_scout_web/templates/chain/show.html.eex:216
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:49
 #: lib/block_scout_web/views/address_view.ex:377
 #, elixir-autogen, elixir-format
@@ -3161,7 +3098,7 @@ msgstr ""
 msgid "UML diagram"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:487
+#: lib/block_scout_web/templates/transaction/overview.html.eex:560
 #, elixir-autogen, elixir-format
 msgid "UTF-8"
 msgstr ""
@@ -3198,12 +3135,12 @@ msgstr ""
 msgid "Update"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:417
+#: lib/block_scout_web/templates/transaction/overview.html.eex:449
 #, elixir-autogen, elixir-format
 msgid "User defined maximum fee (tip) per unit of gas paid to validator for transaction prioritization."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:427
+#: lib/block_scout_web/templates/transaction/overview.html.eex:459
 #, elixir-autogen, elixir-format
 msgid "User-defined tip sent to validator for transaction priority/inclusion."
 msgstr ""
@@ -3238,19 +3175,12 @@ msgstr ""
 msgid "Validator Name"
 msgstr ""
 
-#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:32
-#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:26
-#: lib/block_scout_web/templates/withdrawal/index.html.eex:26
-#, elixir-autogen, elixir-format
-msgid "Validator index"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:349
+#: lib/block_scout_web/templates/transaction/overview.html.eex:369
 #, elixir-autogen, elixir-format
 msgid "Value"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:348
+#: lib/block_scout_web/templates/transaction/overview.html.eex:368
 #, elixir-autogen, elixir-format
 msgid "Value sent in the native token (and USD) if applicable."
 msgstr ""
@@ -3339,12 +3269,12 @@ msgstr ""
 msgid "Via multi-part files"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:153
+#: lib/block_scout_web/templates/chain/show.html.eex:155
 #, elixir-autogen, elixir-format
 msgid "View All Blocks"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:213
+#: lib/block_scout_web/templates/chain/show.html.eex:215
 #, elixir-autogen, elixir-format
 msgid "View All Transactions"
 msgstr ""
@@ -3422,7 +3352,7 @@ msgstr ""
 msgid "Waiting for transaction's confirmation..."
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:139
+#: lib/block_scout_web/templates/chain/show.html.eex:141
 #, elixir-autogen, elixir-format
 msgid "Wallet addresses"
 msgstr ""
@@ -3546,7 +3476,7 @@ msgstr ""
 msgid "button"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:256
+#: lib/block_scout_web/templates/transaction/overview.html.eex:276
 #, elixir-autogen, elixir-format
 msgid "created"
 msgstr ""
@@ -3637,6 +3567,88 @@ msgstr ""
 msgid "truffle flattener"
 msgstr ""
 
+#: lib/block_scout_web/templates/transaction/overview.html.eex:484
+#, elixir-autogen, elixir-format
+msgid "Actual gas amount used by the transaction on L2."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:203
+#, elixir-autogen, elixir-format
+msgid "Block number containing the transaction on L1."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:204
+#, elixir-autogen, elixir-format
+msgid "L1 Block"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:523
+#: lib/block_scout_web/templates/transaction/overview.html.eex:524
+#, elixir-autogen, elixir-format
+msgid "L1 Fee Scalar"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:512
+#: lib/block_scout_web/templates/transaction/overview.html.eex:513
+#, elixir-autogen, elixir-format
+msgid "L1 Gas Price"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:501
+#: lib/block_scout_web/templates/transaction/overview.html.eex:502
+#, elixir-autogen, elixir-format
+msgid "L1 Gas Used by Transaction"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:426
+#, elixir-autogen, elixir-format
+msgid "L2 Gas Limit"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:400
+#, elixir-autogen, elixir-format
+msgid "L2 Gas Price"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:485
+#, elixir-autogen, elixir-format
+msgid "L2 Gas Used by Transaction"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:425
+#, elixir-autogen, elixir-format
+msgid "Maximum gas amount approved for the transaction on L2."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:399
+#, elixir-autogen, elixir-format
+msgid "Price per unit of gas specified by the sender on L2. Higher gas prices can prioritize transaction inclusion during times of high usage."
+msgstr ""
+
+#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:41
+#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:32
+#: lib/block_scout_web/templates/withdrawal/index.html.eex:38
+#, elixir-autogen, elixir-format
+msgid "Amount"
+msgstr ""
+
+#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:2
+#, elixir-autogen, elixir-format
+msgid "Beacon chain withdrawals - %{subnetwork} Explorer"
+msgstr ""
+
+#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:7
+#, elixir-autogen, elixir-format
+msgid "Beacon chain, Withdrawals, %{subnetwork}, %{coin}"
+msgstr ""
+
+#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:29
+#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:23
+#: lib/block_scout_web/templates/withdrawal/index.html.eex:23
+#, elixir-autogen, elixir-format
+msgid "Index"
+msgstr ""
+
 #: lib/block_scout_web/templates/address_contract_verification_via_standard_json_input/new.html.eex:9
 #, elixir-autogen, elixir-format
 msgid "New Smart Contract Verification via Standard input JSON"
@@ -3647,6 +3659,23 @@ msgstr ""
 msgid "New Smart Contract Verification via metadata JSON"
 msgstr ""
 
+#: lib/block_scout_web/templates/layout/_footer.html.eex:31
+#, elixir-autogen, elixir-format
+msgid "Telegram"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:225
+#, elixir-autogen, elixir-format
+msgid "Transaction Action"
+msgstr ""
+
+#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:32
+#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:26
+#: lib/block_scout_web/templates/withdrawal/index.html.eex:26
+#, elixir-autogen, elixir-format
+msgid "Validator index"
+msgstr ""
+
 #: lib/block_scout_web/templates/withdrawal/index.html.eex:11
 #, elixir-autogen, elixir-format
 msgid "%{withdrawals_count} withdrawals processed and %{withdrawals_sum} withdrawn."
@@ -3673,7 +3702,7 @@ msgstr ""
 msgid "Yul"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:437
+#: lib/block_scout_web/templates/transaction/overview.html.eex:469
 #, elixir-autogen, elixir-format
 msgid "burnt for this transaction. Equals Block Base Fee per Gas * Gas Used."
 msgstr ""
@@ -3682,3 +3711,33 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "burnt from transactions included in the block (Base fee (per unit of gas) * Gas Used)."
 msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:488
+#, elixir-autogen, elixir-format
+msgid "Actual gas amount used by the transaction."
+msgstr ""
+
+#: lib/block_scout_web/templates/chain/show.html.eex:102
+#, elixir-autogen, elixir-format
+msgid "Average block time"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:404
+#, elixir-autogen, elixir-format
+msgid "Gas Price"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:489
+#, elixir-autogen, elixir-format
+msgid "Gas Used by Transaction"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:429
+#, elixir-autogen, elixir-format
+msgid "Maximum gas amount approved for the transaction."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:403
+#, elixir-autogen, elixir-format
+msgid "Price per unit of gas specified by the sender. Higher gas prices can prioritize transaction inclusion during times of high usage."
+msgstr ""
diff --git a/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po b/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
index c36ed9283c..47059226f7 100644
--- a/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
+++ b/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
@@ -199,11 +199,6 @@ msgstr ""
 msgid "Actions"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:451
-#, elixir-autogen, elixir-format
-msgid "Actual gas amount used by the transaction."
-msgstr ""
-
 #: lib/block_scout_web/templates/account/api_key/form.html.eex:7
 #: lib/block_scout_web/templates/account/custom_abi/form.html.eex:8
 #: lib/block_scout_web/templates/layout/_add_chain_to_mm.html.eex:10
@@ -270,12 +265,12 @@ msgstr ""
 msgid "Address"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:243
+#: lib/block_scout_web/templates/transaction/overview.html.eex:263
 #, elixir-autogen, elixir-format
 msgid "Address (external or contract) receiving the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:225
+#: lib/block_scout_web/templates/transaction/overview.html.eex:245
 #, elixir-autogen, elixir-format
 msgid "Address (external or contract) sending the transaction."
 msgstr ""
@@ -346,14 +341,7 @@ msgstr ""
 msgid "All tokens in the account and total value."
 msgstr ""
 
-#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:41
-#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:32
-#: lib/block_scout_web/templates/withdrawal/index.html.eex:38
-#, elixir-autogen, elixir-format
-msgid "Amount"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:437
+#: lib/block_scout_web/templates/transaction/overview.html.eex:469
 #, elixir-autogen, elixir-format
 msgid "Amount of"
 msgstr ""
@@ -383,11 +371,6 @@ msgstr ""
 msgid "Average"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:101
-#, elixir-autogen, elixir-format
-msgid "Average block time"
-msgstr ""
-
 #: lib/block_scout_web/templates/account/api_key/form.html.eex:25
 #, elixir-autogen, elixir-format
 msgid "Back to API keys (Cancel)"
@@ -455,17 +438,7 @@ msgstr ""
 msgid "Base URL:"
 msgstr ""
 
-#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:2
-#, elixir-autogen, elixir-format
-msgid "Beacon chain withdrawals - %{subnetwork} Explorer"
-msgstr ""
-
-#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:7
-#, elixir-autogen, elixir-format
-msgid "Beacon chain, Withdrawals, %{subnetwork}, %{coin}"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:472
+#: lib/block_scout_web/templates/transaction/overview.html.eex:545
 #, elixir-autogen, elixir-format
 msgid "Binary data included with the transaction. See input / logs below for additional info."
 msgstr ""
@@ -541,7 +514,7 @@ msgstr ""
 msgid "Blockchain"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:154
+#: lib/block_scout_web/templates/chain/show.html.eex:156
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:34
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:38
 #, elixir-autogen, elixir-format
@@ -758,7 +731,7 @@ msgid "Constructor args"
 msgstr ""
 
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:52
-#: lib/block_scout_web/templates/transaction/overview.html.eex:253
+#: lib/block_scout_web/templates/transaction/overview.html.eex:273
 #, elixir-autogen, elixir-format
 msgid "Contract"
 msgstr ""
@@ -783,12 +756,12 @@ msgstr ""
 msgid "Contract Address Pending"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:483
+#: lib/block_scout_web/views/transaction_view.ex:497
 #, elixir-autogen, elixir-format
 msgid "Contract Call"
 msgstr ""
 
-#: lib/block_scout_web/views/transaction_view.ex:480
+#: lib/block_scout_web/views/transaction_view.ex:494
 #, elixir-autogen, elixir-format
 msgid "Contract Creation"
 msgstr ""
@@ -909,8 +882,8 @@ msgstr ""
 #: lib/block_scout_web/templates/account/watchlist_address/row.html.eex:7
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:17
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:18
-#: lib/block_scout_web/templates/transaction/overview.html.eex:233
-#: lib/block_scout_web/templates/transaction/overview.html.eex:234
+#: lib/block_scout_web/templates/transaction/overview.html.eex:253
+#: lib/block_scout_web/templates/transaction/overview.html.eex:254
 #, elixir-autogen, elixir-format
 msgid "Copy From Address"
 msgstr ""
@@ -945,10 +918,10 @@ msgstr ""
 
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:34
 #: lib/block_scout_web/templates/transaction/_total_transfers_from_to.html.eex:35
-#: lib/block_scout_web/templates/transaction/overview.html.eex:260
-#: lib/block_scout_web/templates/transaction/overview.html.eex:261
-#: lib/block_scout_web/templates/transaction/overview.html.eex:268
-#: lib/block_scout_web/templates/transaction/overview.html.eex:269
+#: lib/block_scout_web/templates/transaction/overview.html.eex:280
+#: lib/block_scout_web/templates/transaction/overview.html.eex:281
+#: lib/block_scout_web/templates/transaction/overview.html.eex:288
+#: lib/block_scout_web/templates/transaction/overview.html.eex:289
 #, elixir-autogen, elixir-format
 msgid "Copy To Address"
 msgstr ""
@@ -969,20 +942,20 @@ msgstr ""
 msgid "Copy Txn Hash"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:498
+#: lib/block_scout_web/templates/transaction/overview.html.eex:571
 #, elixir-autogen, elixir-format
 msgid "Copy Txn Hex Input"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:504
+#: lib/block_scout_web/templates/transaction/overview.html.eex:577
 #, elixir-autogen, elixir-format
 msgid "Copy Txn UTF-8 Input"
 msgstr ""
 
 #: lib/block_scout_web/templates/log/_data_decoded_view.html.eex:20
 #: lib/block_scout_web/templates/transaction/_decoded_input_body.html.eex:41
-#: lib/block_scout_web/templates/transaction/overview.html.eex:497
-#: lib/block_scout_web/templates/transaction/overview.html.eex:503
+#: lib/block_scout_web/templates/transaction/overview.html.eex:570
+#: lib/block_scout_web/templates/transaction/overview.html.eex:576
 #: lib/block_scout_web/templates/transaction_raw_trace/_card_body.html.eex:8
 #, elixir-autogen, elixir-format
 msgid "Copy Value"
@@ -1411,7 +1384,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:38
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:40
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:34
-#: lib/block_scout_web/templates/transaction/overview.html.eex:226
+#: lib/block_scout_web/templates/transaction/overview.html.eex:246
 #: lib/block_scout_web/views/address_internal_transaction_view.ex:10
 #: lib/block_scout_web/views/address_token_transfer_view.ex:10
 #: lib/block_scout_web/views/address_transaction_view.ex:10
@@ -1426,16 +1399,11 @@ msgstr ""
 
 #: lib/block_scout_web/templates/block/_tile.html.eex:67
 #: lib/block_scout_web/templates/block/overview.html.eex:187
-#: lib/block_scout_web/templates/transaction/overview.html.eex:399
+#: lib/block_scout_web/templates/transaction/overview.html.eex:430
 #, elixir-autogen, elixir-format
 msgid "Gas Limit"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:379
-#, elixir-autogen, elixir-format
-msgid "Gas Price"
-msgstr ""
-
 #: lib/block_scout_web/templates/address/overview.html.eex:240
 #: lib/block_scout_web/templates/block/_tile.html.eex:73
 #: lib/block_scout_web/templates/block/overview.html.eex:178
@@ -1443,11 +1411,6 @@ msgstr ""
 msgid "Gas Used"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:452
-#, elixir-autogen, elixir-format
-msgid "Gas Used by Transaction"
-msgstr ""
-
 #: lib/block_scout_web/templates/chain/gas_price_oracle_legend_item.html.eex:3
 #: lib/block_scout_web/templates/chain/gas_price_oracle_legend_item.html.eex:18
 #, elixir-autogen, elixir-format
@@ -1495,13 +1458,13 @@ msgstr ""
 msgid "Hash"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:480
-#: lib/block_scout_web/templates/transaction/overview.html.eex:484
+#: lib/block_scout_web/templates/transaction/overview.html.eex:553
+#: lib/block_scout_web/templates/transaction/overview.html.eex:557
 #, elixir-autogen, elixir-format
 msgid "Hex (Default)"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:204
+#: lib/block_scout_web/templates/transaction/overview.html.eex:224
 #, elixir-autogen, elixir-format
 msgid "Highlighted events of the transaction."
 msgstr ""
@@ -1560,14 +1523,7 @@ msgstr ""
 msgid "Incoming"
 msgstr ""
 
-#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:29
-#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:23
-#: lib/block_scout_web/templates/withdrawal/index.html.eex:23
-#, elixir-autogen, elixir-format
-msgid "Index"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:464
+#: lib/block_scout_web/templates/transaction/overview.html.eex:537
 #, elixir-autogen, elixir-format
 msgid "Index position of Transaction in the block."
 msgstr ""
@@ -1587,7 +1543,7 @@ msgstr ""
 msgid "Input"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:245
+#: lib/block_scout_web/templates/transaction/overview.html.eex:265
 #, elixir-autogen, elixir-format
 msgid "Interacted With (To)"
 msgstr ""
@@ -1602,7 +1558,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:11
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:6
 #: lib/block_scout_web/views/address_view.ex:376
-#: lib/block_scout_web/views/transaction_view.ex:538
+#: lib/block_scout_web/views/transaction_view.ex:552
 #, elixir-autogen, elixir-format
 msgid "Internal Transactions"
 msgstr ""
@@ -1662,22 +1618,22 @@ msgstr ""
 msgid "License ID"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:331
+#: lib/block_scout_web/templates/transaction/overview.html.eex:351
 #, elixir-autogen, elixir-format
 msgid "List of ERC-1155 tokens created in the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:315
+#: lib/block_scout_web/templates/transaction/overview.html.eex:335
 #, elixir-autogen, elixir-format
 msgid "List of token burnt in the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:298
+#: lib/block_scout_web/templates/transaction/overview.html.eex:318
 #, elixir-autogen, elixir-format
 msgid "List of token minted in the transaction."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:282
+#: lib/block_scout_web/templates/transaction/overview.html.eex:302
 #, elixir-autogen, elixir-format
 msgid "List of token transferred in the transaction."
 msgstr ""
@@ -1719,7 +1675,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:17
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:8
 #: lib/block_scout_web/views/address_view.ex:387
-#: lib/block_scout_web/views/transaction_view.ex:539
+#: lib/block_scout_web/views/transaction_view.ex:553
 #, elixir-autogen, elixir-format
 msgid "Logs"
 msgstr ""
@@ -1742,12 +1698,12 @@ msgstr ""
 msgid "Market cap"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:408
+#: lib/block_scout_web/templates/transaction/overview.html.eex:440
 #, elixir-autogen, elixir-format
 msgid "Max Fee per Gas"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:418
+#: lib/block_scout_web/templates/transaction/overview.html.eex:450
 #, elixir-autogen, elixir-format
 msgid "Max Priority Fee per Gas"
 msgstr ""
@@ -1757,12 +1713,7 @@ msgstr ""
 msgid "Max of"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:398
-#, elixir-autogen, elixir-format
-msgid "Maximum gas amount approved for the transaction."
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:407
+#: lib/block_scout_web/templates/transaction/overview.html.eex:439
 #, elixir-autogen, elixir-format
 msgid "Maximum total amount per unit of gas a user is willing to pay for a transaction, including base fee and priority fee."
 msgstr ""
@@ -1824,7 +1775,7 @@ msgid "More internal transactions have come in"
 msgstr ""
 
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:46
-#: lib/block_scout_web/templates/chain/show.html.eex:217
+#: lib/block_scout_web/templates/chain/show.html.eex:219
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:13
 #: lib/block_scout_web/templates/transaction/index.html.eex:19
 #, elixir-autogen, elixir-format
@@ -1944,7 +1895,7 @@ msgid "No trace entries found."
 msgstr ""
 
 #: lib/block_scout_web/templates/block/overview.html.eex:196
-#: lib/block_scout_web/templates/transaction/overview.html.eex:462
+#: lib/block_scout_web/templates/transaction/overview.html.eex:535
 #, elixir-autogen, elixir-format
 msgid "Nonce"
 msgstr ""
@@ -2065,7 +2016,8 @@ msgstr ""
 
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:63
 #: lib/block_scout_web/views/transaction_view.ex:373
-#: lib/block_scout_web/views/transaction_view.ex:412
+#: lib/block_scout_web/views/transaction_view.ex:419
+#: lib/block_scout_web/views/transaction_view.ex:427
 #, elixir-autogen, elixir-format
 msgid "Pending"
 msgstr ""
@@ -2097,7 +2049,7 @@ msgstr ""
 msgid "Please select what types of notifications you will receive:"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:464
+#: lib/block_scout_web/templates/transaction/overview.html.eex:537
 #, elixir-autogen, elixir-format
 msgid "Position"
 msgstr ""
@@ -2134,13 +2086,8 @@ msgstr ""
 msgid "Price per token on the exchanges"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:378
-#, elixir-autogen, elixir-format
-msgid "Price per unit of gas specified by the sender. Higher gas prices can prioritize transaction inclusion during times of high usage."
-msgstr ""
-
 #: lib/block_scout_web/templates/block/overview.html.eex:225
-#: lib/block_scout_web/templates/transaction/overview.html.eex:428
+#: lib/block_scout_web/templates/transaction/overview.html.eex:460
 #, elixir-autogen, elixir-format
 msgid "Priority Fee / Tip"
 msgstr ""
@@ -2194,14 +2141,14 @@ msgstr ""
 msgid "RPC"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:473
+#: lib/block_scout_web/templates/transaction/overview.html.eex:546
 #, elixir-autogen, elixir-format
 msgid "Raw Input"
 msgstr ""
 
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:24
 #: lib/block_scout_web/templates/transaction_raw_trace/_card_body.html.eex:1
-#: lib/block_scout_web/views/transaction_view.ex:540
+#: lib/block_scout_web/views/transaction_view.ex:554
 #, elixir-autogen, elixir-format
 msgid "Raw Trace"
 msgstr ""
@@ -2319,7 +2266,7 @@ msgstr ""
 msgid "Save"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:206
+#: lib/block_scout_web/templates/transaction/overview.html.eex:226
 #, elixir-autogen, elixir-format
 msgid "Scroll to see more"
 msgstr ""
@@ -2459,7 +2406,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_withdrawal/index.html.eex:20
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:14
 #: lib/block_scout_web/templates/block_withdrawal/index.html.eex:14
-#: lib/block_scout_web/templates/chain/show.html.eex:158
+#: lib/block_scout_web/templates/chain/show.html.eex:160
 #: lib/block_scout_web/templates/pending_transaction/index.html.eex:18
 #: lib/block_scout_web/templates/tokens/holder/index.html.eex:24
 #: lib/block_scout_web/templates/tokens/instance/holder/index.html.eex:23
@@ -2477,7 +2424,7 @@ msgstr ""
 msgid "Something went wrong, click to reload."
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:223
+#: lib/block_scout_web/templates/chain/show.html.eex:225
 #, elixir-autogen, elixir-format
 msgid "Something went wrong, click to retry."
 msgstr ""
@@ -2514,7 +2461,7 @@ msgstr ""
 
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:29
 #: lib/block_scout_web/templates/transaction_state/index.html.eex:6
-#: lib/block_scout_web/views/transaction_view.ex:541
+#: lib/block_scout_web/views/transaction_view.ex:555
 #, elixir-autogen, elixir-format
 msgid "State changes"
 msgstr ""
@@ -2551,11 +2498,6 @@ msgstr ""
 msgid "TX Fee"
 msgstr ""
 
-#: lib/block_scout_web/templates/layout/_footer.html.eex:31
-#, elixir-autogen, elixir-format
-msgid "Telegram"
-msgstr ""
-
 #: lib/block_scout_web/templates/layout/_footer.html.eex:67
 #, elixir-autogen, elixir-format
 msgid "Test Networks"
@@ -2816,7 +2758,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:34
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:28
 #: lib/block_scout_web/templates/block_withdrawal/index.html.eex:29
-#: lib/block_scout_web/templates/transaction/overview.html.eex:247
+#: lib/block_scout_web/templates/transaction/overview.html.eex:267
 #: lib/block_scout_web/templates/withdrawal/index.html.eex:32
 #: lib/block_scout_web/views/address_internal_transaction_view.ex:9
 #: lib/block_scout_web/views/address_token_transfer_view.ex:9
@@ -2849,13 +2791,13 @@ msgid "Token"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:3
-#: lib/block_scout_web/views/transaction_view.ex:474
+#: lib/block_scout_web/views/transaction_view.ex:488
 #, elixir-autogen, elixir-format
 msgid "Token Burning"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:7
-#: lib/block_scout_web/views/transaction_view.ex:475
+#: lib/block_scout_web/views/transaction_view.ex:489
 #, elixir-autogen, elixir-format
 msgid "Token Creation"
 msgstr ""
@@ -2883,14 +2825,14 @@ msgid "Token ID"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:5
-#: lib/block_scout_web/views/transaction_view.ex:473
+#: lib/block_scout_web/views/transaction_view.ex:487
 #, elixir-autogen, elixir-format
 msgid "Token Minting"
 msgstr ""
 
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:9
 #: lib/block_scout_web/templates/common_components/_token_transfer_type_display_name.html.eex:11
-#: lib/block_scout_web/views/transaction_view.ex:476
+#: lib/block_scout_web/views/transaction_view.ex:490
 #, elixir-autogen, elixir-format
 msgid "Token Transfer"
 msgstr ""
@@ -2906,7 +2848,7 @@ msgstr ""
 #: lib/block_scout_web/views/address_view.ex:378
 #: lib/block_scout_web/views/tokens/instance/overview_view.ex:114
 #: lib/block_scout_web/views/tokens/overview_view.ex:40
-#: lib/block_scout_web/views/transaction_view.ex:537
+#: lib/block_scout_web/views/transaction_view.ex:551
 #, elixir-autogen, elixir-format
 msgid "Token Transfers"
 msgstr ""
@@ -2932,22 +2874,22 @@ msgstr ""
 msgid "Tokens"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:316
+#: lib/block_scout_web/templates/transaction/overview.html.eex:336
 #, elixir-autogen, elixir-format
 msgid "Tokens Burnt"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:332
+#: lib/block_scout_web/templates/transaction/overview.html.eex:352
 #, elixir-autogen, elixir-format
 msgid "Tokens Created"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:299
+#: lib/block_scout_web/templates/transaction/overview.html.eex:319
 #, elixir-autogen, elixir-format
 msgid "Tokens Minted"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:283
+#: lib/block_scout_web/templates/transaction/overview.html.eex:303
 #, elixir-autogen, elixir-format
 msgid "Tokens Transferred"
 msgstr ""
@@ -2989,7 +2931,7 @@ msgstr ""
 msgid "Total Supply * Price"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:131
+#: lib/block_scout_web/templates/chain/show.html.eex:133
 #, elixir-autogen, elixir-format
 msgid "Total blocks"
 msgstr ""
@@ -3009,12 +2951,12 @@ msgstr ""
 msgid "Total supply"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:363
+#: lib/block_scout_web/templates/transaction/overview.html.eex:383
 #, elixir-autogen, elixir-format
 msgid "Total transaction fee."
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:110
+#: lib/block_scout_web/templates/chain/show.html.eex:112
 #, elixir-autogen, elixir-format
 msgid "Total transactions"
 msgstr ""
@@ -3022,7 +2964,7 @@ msgstr ""
 #: lib/block_scout_web/templates/account/tag_transaction/form.html.eex:11
 #: lib/block_scout_web/templates/account/tag_transaction/index.html.eex:23
 #: lib/block_scout_web/templates/address_logs/_logs.html.eex:19
-#: lib/block_scout_web/views/transaction_view.ex:486
+#: lib/block_scout_web/views/transaction_view.ex:500
 #, elixir-autogen, elixir-format
 msgid "Transaction"
 msgstr ""
@@ -3037,12 +2979,7 @@ msgstr ""
 msgid "Transaction %{transaction}, %{subnetwork} %{transaction}"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:205
-#, elixir-autogen, elixir-format
-msgid "Transaction Action"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:438
+#: lib/block_scout_web/templates/transaction/overview.html.eex:470
 #, elixir-autogen, elixir-format
 msgid "Transaction Burnt Fee"
 msgstr ""
@@ -3052,7 +2989,7 @@ msgstr ""
 msgid "Transaction Details"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:364
+#: lib/block_scout_web/templates/transaction/overview.html.eex:384
 #, elixir-autogen, elixir-format
 msgid "Transaction Fee"
 msgstr ""
@@ -3075,17 +3012,17 @@ msgstr ""
 msgid "Transaction Tags"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:388
+#: lib/block_scout_web/templates/transaction/overview.html.eex:414
 #, elixir-autogen, elixir-format
 msgid "Transaction Type"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:461
+#: lib/block_scout_web/templates/transaction/overview.html.eex:534
 #, elixir-autogen, elixir-format
 msgid "Transaction number from the sending address. Each transaction sent from an address increments the nonce by 1."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:387
+#: lib/block_scout_web/templates/transaction/overview.html.eex:413
 #, elixir-autogen, elixir-format
 msgid "Transaction type, introduced in EIP-2718."
 msgstr ""
@@ -3098,7 +3035,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:13
 #: lib/block_scout_web/templates/block/_tabs.html.eex:4
 #: lib/block_scout_web/templates/block/overview.html.eex:80
-#: lib/block_scout_web/templates/chain/show.html.eex:214
+#: lib/block_scout_web/templates/chain/show.html.eex:216
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:49
 #: lib/block_scout_web/views/address_view.ex:377
 #, elixir-autogen, elixir-format
@@ -3161,7 +3098,7 @@ msgstr ""
 msgid "UML diagram"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:487
+#: lib/block_scout_web/templates/transaction/overview.html.eex:560
 #, elixir-autogen, elixir-format
 msgid "UTF-8"
 msgstr ""
@@ -3198,12 +3135,12 @@ msgstr ""
 msgid "Update"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:417
+#: lib/block_scout_web/templates/transaction/overview.html.eex:449
 #, elixir-autogen, elixir-format
 msgid "User defined maximum fee (tip) per unit of gas paid to validator for transaction prioritization."
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:427
+#: lib/block_scout_web/templates/transaction/overview.html.eex:459
 #, elixir-autogen, elixir-format
 msgid "User-defined tip sent to validator for transaction priority/inclusion."
 msgstr ""
@@ -3238,19 +3175,12 @@ msgstr ""
 msgid "Validator Name"
 msgstr ""
 
-#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:32
-#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:26
-#: lib/block_scout_web/templates/withdrawal/index.html.eex:26
-#, elixir-autogen, elixir-format
-msgid "Validator index"
-msgstr ""
-
-#: lib/block_scout_web/templates/transaction/overview.html.eex:349
+#: lib/block_scout_web/templates/transaction/overview.html.eex:369
 #, elixir-autogen, elixir-format
 msgid "Value"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:348
+#: lib/block_scout_web/templates/transaction/overview.html.eex:368
 #, elixir-autogen, elixir-format
 msgid "Value sent in the native token (and USD) if applicable."
 msgstr ""
@@ -3339,12 +3269,12 @@ msgstr ""
 msgid "Via multi-part files"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:153
+#: lib/block_scout_web/templates/chain/show.html.eex:155
 #, elixir-autogen, elixir-format
 msgid "View All Blocks"
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:213
+#: lib/block_scout_web/templates/chain/show.html.eex:215
 #, elixir-autogen, elixir-format
 msgid "View All Transactions"
 msgstr ""
@@ -3422,7 +3352,7 @@ msgstr ""
 msgid "Waiting for transaction's confirmation..."
 msgstr ""
 
-#: lib/block_scout_web/templates/chain/show.html.eex:139
+#: lib/block_scout_web/templates/chain/show.html.eex:141
 #, elixir-autogen, elixir-format
 msgid "Wallet addresses"
 msgstr ""
@@ -3546,7 +3476,7 @@ msgstr ""
 msgid "button"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:256
+#: lib/block_scout_web/templates/transaction/overview.html.eex:276
 #, elixir-autogen, elixir-format
 msgid "created"
 msgstr ""
@@ -3637,6 +3567,88 @@ msgstr ""
 msgid "truffle flattener"
 msgstr ""
 
+#: lib/block_scout_web/templates/transaction/overview.html.eex:484
+#, elixir-autogen, elixir-format
+msgid "Actual gas amount used by the transaction on L2."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:203
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Block number containing the transaction on L1."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:204
+#, elixir-autogen, elixir-format, fuzzy
+msgid "L1 Block"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:523
+#: lib/block_scout_web/templates/transaction/overview.html.eex:524
+#, elixir-autogen, elixir-format
+msgid "L1 Fee Scalar"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:512
+#: lib/block_scout_web/templates/transaction/overview.html.eex:513
+#, elixir-autogen, elixir-format, fuzzy
+msgid "L1 Gas Price"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:501
+#: lib/block_scout_web/templates/transaction/overview.html.eex:502
+#, elixir-autogen, elixir-format
+msgid "L1 Gas Used by Transaction"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:426
+#, elixir-autogen, elixir-format, fuzzy
+msgid "L2 Gas Limit"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:400
+#, elixir-autogen, elixir-format, fuzzy
+msgid "L2 Gas Price"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:485
+#, elixir-autogen, elixir-format
+msgid "L2 Gas Used by Transaction"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:425
+#, elixir-autogen, elixir-format
+msgid "Maximum gas amount approved for the transaction on L2."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:399
+#, elixir-autogen, elixir-format
+msgid "Price per unit of gas specified by the sender on L2. Higher gas prices can prioritize transaction inclusion during times of high usage."
+msgstr ""
+
+#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:41
+#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:32
+#: lib/block_scout_web/templates/withdrawal/index.html.eex:38
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Amount"
+msgstr ""
+
+#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:2
+#, elixir-autogen, elixir-format
+msgid "Beacon chain withdrawals - %{subnetwork} Explorer"
+msgstr ""
+
+#: lib/block_scout_web/templates/withdrawal/_metatags.html.eex:7
+#, elixir-autogen, elixir-format
+msgid "Beacon chain, Withdrawals, %{subnetwork}, %{coin}"
+msgstr ""
+
+#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:29
+#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:23
+#: lib/block_scout_web/templates/withdrawal/index.html.eex:23
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Index"
+msgstr ""
+
 #: lib/block_scout_web/templates/address_contract_verification_via_standard_json_input/new.html.eex:9
 #, elixir-autogen, elixir-format, fuzzy
 msgid "New Smart Contract Verification via Standard input JSON"
@@ -3647,8 +3659,25 @@ msgstr ""
 msgid "New Smart Contract Verification via metadata JSON"
 msgstr ""
 
-#: lib/block_scout_web/templates/withdrawal/index.html.eex:11
+#: lib/block_scout_web/templates/layout/_footer.html.eex:31
+#, elixir-autogen, elixir-format
+msgid "Telegram"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:225
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Transaction Action"
+msgstr ""
+
+#: lib/block_scout_web/templates/address_withdrawal/index.html.eex:32
+#: lib/block_scout_web/templates/block_withdrawal/index.html.eex:26
+#: lib/block_scout_web/templates/withdrawal/index.html.eex:26
 #, elixir-autogen, elixir-format, fuzzy
+msgid "Validator index"
+msgstr ""
+
+#: lib/block_scout_web/templates/withdrawal/index.html.eex:11
+#, elixir-autogen, elixir-format
 msgid "%{withdrawals_count} withdrawals processed and %{withdrawals_sum} withdrawn."
 msgstr ""
 
@@ -3673,7 +3702,7 @@ msgstr ""
 msgid "Yul"
 msgstr ""
 
-#: lib/block_scout_web/templates/transaction/overview.html.eex:437
+#: lib/block_scout_web/templates/transaction/overview.html.eex:469
 #, elixir-autogen, elixir-format, fuzzy
 msgid "burnt for this transaction. Equals Block Base Fee per Gas * Gas Used."
 msgstr ""
@@ -3682,3 +3711,33 @@ msgstr ""
 #, elixir-autogen, elixir-format, fuzzy
 msgid "burnt from transactions included in the block (Base fee (per unit of gas) * Gas Used)."
 msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:488
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Actual gas amount used by the transaction."
+msgstr ""
+
+#: lib/block_scout_web/templates/chain/show.html.eex:102
+#, elixir-autogen, elixir-format
+msgid "Average block time"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:404
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Gas Price"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:489
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Gas Used by Transaction"
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:429
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Maximum gas amount approved for the transaction."
+msgstr ""
+
+#: lib/block_scout_web/templates/transaction/overview.html.eex:403
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Price per unit of gas specified by the sender. Higher gas prices can prioritize transaction inclusion during times of high usage."
+msgstr ""
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex
index 3636d4ff46..cd155ed3d2 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex
@@ -329,6 +329,16 @@ defmodule EthereumJSONRPC do
    * `{:error, reason}` - other JSONRPC error.
 
   """
+  @spec fetch_block_number_by_tag_op_version(tag(), json_rpc_named_arguments) ::
+          {:ok, non_neg_integer()} | {:error, reason :: :invalid_tag | :not_found | term()}
+  def fetch_block_number_by_tag_op_version(tag, json_rpc_named_arguments)
+      when tag in ~w(earliest latest pending safe) do
+    %{id: 0, tag: tag}
+    |> Block.ByTag.request()
+    |> json_rpc(json_rpc_named_arguments)
+    |> Block.ByTag.number_from_result()
+  end
+
   @spec fetch_block_number_by_tag(tag(), json_rpc_named_arguments) ::
           {:ok, non_neg_integer()} | {:error, reason :: :invalid_tag | :not_found | term()}
   def fetch_block_number_by_tag(tag, json_rpc_named_arguments) when tag in ~w(earliest latest pending safe) do
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/block/by_hash.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/block/by_hash.ex
index 07d1e48b4d..5a923a3a95 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/block/by_hash.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/block/by_hash.ex
@@ -3,9 +3,7 @@ defmodule EthereumJSONRPC.Block.ByHash do
   Block format as returned by [`eth_getBlockByHash`](https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getblockbyhash)
   """
 
-  @include_transactions true
-
-  def request(%{id: id, hash: hash}) do
-    EthereumJSONRPC.request(%{id: id, method: "eth_getBlockByHash", params: [hash, @include_transactions]})
+  def request(%{id: id, hash: hash}, hydrated \\ true) do
+    EthereumJSONRPC.request(%{id: id, method: "eth_getBlockByHash", params: [hash, hydrated]})
   end
 end
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipt.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipt.ex
index f82762f547..f491349558 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipt.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipt.ex
@@ -80,6 +80,12 @@ defmodule EthereumJSONRPC.Receipt do
             blob_gas_price: 0,\
             blob_gas_used: 0\
       """
+    "optimism" -> """
+          l1_fee: 0,\
+          l1_fee_scalar: 0,\
+          l1_gas_price: 0,\
+          l1_gas_used: 0\
+      """
     _ -> ""
   end}
       }
@@ -120,6 +126,12 @@ defmodule EthereumJSONRPC.Receipt do
             blob_gas_price: 0,\
             blob_gas_used: 0\
       """
+    "optimism" -> """
+          l1_fee: 0,\
+          l1_fee_scalar: 0,\
+          l1_gas_price: 0,\
+          l1_gas_used: 0\
+      """
     _ -> ""
   end}
       }
@@ -169,6 +181,15 @@ defmodule EthereumJSONRPC.Receipt do
           blob_gas_used: Map.get(elixir, "blobGasUsed", 0)
         })
 
+      "optimism" ->
+        params
+        |> Map.merge(%{
+          l1_fee: Map.get(elixir, "l1Fee", 0),
+          l1_fee_scalar: Map.get(elixir, "l1FeeScalar", 0),
+          l1_gas_price: Map.get(elixir, "l1GasPrice", 0),
+          l1_gas_used: Map.get(elixir, "l1GasUsed", 0)
+        })
+
       _ ->
         params
     end
@@ -287,11 +308,11 @@ defmodule EthereumJSONRPC.Receipt do
   # hash format
   # gas is passed in from the `t:EthereumJSONRPC.Transaction.params/0` to allow pre-Byzantium status to be derived
   defp entry_to_elixir({key, _} = entry)
-       when key in ~w(blockHash contractAddress from gas logsBloom root to transactionHash revertReason type effectiveGasPrice),
+       when key in ~w(blockHash contractAddress from gas logsBloom root to transactionHash revertReason type effectiveGasPrice l1FeeScalar),
        do: {:ok, entry}
 
   defp entry_to_elixir({key, quantity})
-       when key in ~w(blockNumber cumulativeGasUsed gasUsed transactionIndex blobGasUsed blobGasPrice) do
+       when key in ~w(blockNumber cumulativeGasUsed gasUsed transactionIndex blobGasUsed blobGasPrice l1Fee l1GasPrice l1GasUsed) do
     result =
       if is_nil(quantity) do
         nil
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipts.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipts.ex
index 7ceb79b872..e897b85020 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipts.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipts.ex
@@ -105,6 +105,12 @@ defmodule EthereumJSONRPC.Receipts do
             blob_gas_price: 0,\
             blob_gas_used: 0\
       """
+    "optimism" -> """
+        l1_fee: 0,\
+        l1_fee_scalar: 0,\
+        l1_gas_price: 0,\
+        l1_gas_used: 0\
+      """
     _ -> ""
   end}
         }
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex
index 03cd3a52b8..67f172c1a6 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex
@@ -20,6 +20,14 @@ defmodule EthereumJSONRPC.Transaction do
                            ]
                          )
 
+    "optimism" ->
+      @chain_type_fields quote(
+                           do: [
+                             l1_tx_origin: EthereumJSONRPC.hash(),
+                             l1_block_number: non_neg_integer()
+                           ]
+                         )
+
     "suave" ->
       @chain_type_fields quote(
                            do: [
@@ -80,6 +88,10 @@ defmodule EthereumJSONRPC.Transaction do
        * `"maxFeePerBlobGas"` - `t:EthereumJSONRPC.quantity/0` of wei to denote max fee per unit of blob gas used. Introduced in [EIP-4844](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-4844.md)
        * `"blobVersionedHashes"` - `t:list/0` of `t:EthereumJSONRPC.hash/0` of included data blobs hashes. Introduced in [EIP-4844](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-4844.md)
       """
+    "optimism" -> """
+       * `"l1TxOrigin"` - .
+       * `"l1BlockNumber"` - .
+      """
     "suave" -> """
        * `"executionNode"` - `t:EthereumJSONRPC.address/0` of execution node (used by Suave).
        * `"requestRecord"` - map of wrapped transaction data (used by Suave).
@@ -131,6 +143,7 @@ defmodule EthereumJSONRPC.Transaction do
       ...>     "s" => 31606574786494953692291101914709926755545765281581808821704454381804773090106,
       ...>     "to" => "0x5df9b87991262f6ba471f09758cde1c0fc1de734",
       ...>     "transactionIndex" => 0,
+      ...>     "type" => 2,
       ...>     "v" => 28,
       ...>     "value" => 31337
       ...>   }
@@ -148,11 +161,49 @@ defmodule EthereumJSONRPC.Transaction do
         r: 61965845294689009770156372156374760022787886965323743865986648153755601564112,
         s: 31606574786494953692291101914709926755545765281581808821704454381804773090106,
         to_address_hash: "0x5df9b87991262f6ba471f09758cde1c0fc1de734",
+        type: 2,
         v: 28,
         value: 31337,
         transaction_index: 0
       }
 
+      iex> EthereumJSONRPC.Transaction.elixir_to_params(
+      ...>   %{
+      ...>     "blockHash" => "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
+      ...>     "blockNumber" => 46147,
+      ...>     "from" => "0xa1e4380a3b1f749673e270229993ee55f35663b4",
+      ...>     "gas" => 21000,
+      ...>     "hash" => "0x5c504ed432cb51138bcf09aa5e8a410dd4a1e204ef84bfed1be16dfba1b22060",
+      ...>     "input" => "0x",
+      ...>     "nonce" => 0,
+      ...>     "r" => 61965845294689009770156372156374760022787886965323743865986648153755601564112,
+      ...>     "s" => 31606574786494953692291101914709926755545765281581808821704454381804773090106,
+      ...>     "to" => "0x5df9b87991262f6ba471f09758cde1c0fc1de734",
+      ...>     "transactionIndex" => 0,
+      ...>     "type" => 2,
+      ...>     "v" => 28,
+      ...>     "value" => 31337
+      ...>   }
+      ...> )
+      %{
+        block_hash: "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
+        block_number: 46147,
+        from_address_hash: "0xa1e4380a3b1f749673e270229993ee55f35663b4",
+        gas: 21000,
+        hash: "0x5c504ed432cb51138bcf09aa5e8a410dd4a1e204ef84bfed1be16dfba1b22060",
+        index: 0,
+        input: "0x",
+        nonce: 0,
+        r: 61965845294689009770156372156374760022787886965323743865986648153755601564112,
+        s: 31606574786494953692291101914709926755545765281581808821704454381804773090106,
+        to_address_hash: "0x5df9b87991262f6ba471f09758cde1c0fc1de734",
+        type: 2,
+        v: 28,
+        value: 31337,
+        transaction_index: 0,
+        gas_price: 0
+      }
+
   Erigon `elixir` from txpool_content method can be converted to `params`.
 
       iex> EthereumJSONRPC.Transaction.elixir_to_params(
@@ -386,6 +437,49 @@ defmodule EthereumJSONRPC.Transaction do
     ])
   end
 
+  def do_elixir_to_params(
+        %{
+          "blockHash" => block_hash,
+          "blockNumber" => block_number,
+          "from" => from_address_hash,
+          "gas" => gas,
+          "hash" => hash,
+          "input" => input,
+          "nonce" => nonce,
+          "r" => r,
+          "s" => s,
+          "to" => to_address_hash,
+          "transactionIndex" => index,
+          "type" => type,
+          "v" => v,
+          "value" => value
+        } = transaction
+      ) do
+    result = %{
+      block_hash: block_hash,
+      block_number: block_number,
+      from_address_hash: from_address_hash,
+      gas: gas,
+      gas_price: 0,
+      hash: hash,
+      index: index,
+      input: input,
+      nonce: nonce,
+      r: r,
+      s: s,
+      to_address_hash: to_address_hash,
+      v: v,
+      value: value,
+      transaction_index: index,
+      type: type
+    }
+
+    put_if_present(transaction, result, [
+      {"creates", :created_contract_address_hash},
+      {"block_timestamp", :block_timestamp}
+    ])
+  end
+
   defp chain_type_fields(params, elixir) do
     case Application.get_env(:explorer, :chain_type) do
       "ethereum" ->
@@ -394,6 +488,12 @@ defmodule EthereumJSONRPC.Transaction do
           {"maxFeePerBlobGas", :max_fee_per_blob_gas}
         ])
 
+      "optimism" ->
+        put_if_present(elixir, params, [
+          {"l1TxOrigin", :l1_tx_origin},
+          {"l1BlockNumber", :l1_block_number}
+        ])
+
       "suave" ->
         wrapped = Map.get(elixir, "requestRecord")
 
@@ -552,7 +652,8 @@ defmodule EthereumJSONRPC.Transaction do
   end
 
   # quantity or nil for pending
-  defp entry_to_elixir({key, quantity_or_nil}) when key in ~w(blockNumber transactionIndex) do
+  defp entry_to_elixir({key, quantity_or_nil})
+       when key in ~w(blockNumber transactionIndex l1TxOrigin l1BlockNumber) do
     elixir =
       case quantity_or_nil do
         nil -> nil
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_checker.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_checker.ex
index 527f8a0c35..27cb30921e 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_checker.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_checker.ex
@@ -4,6 +4,7 @@ defmodule EthereumJSONRPC.Utility.EndpointAvailabilityChecker do
   """
 
   use GenServer
+  require Logger
 
   alias EthereumJSONRPC.Utility.EndpointAvailabilityObserver
 
@@ -32,7 +33,9 @@ defmodule EthereumJSONRPC.Utility.EndpointAvailabilityChecker do
       Enum.reduce(unavailable_endpoints_arguments, [], fn json_rpc_named_arguments, acc ->
         case fetch_latest_block_number(json_rpc_named_arguments) do
           {:ok, _number} ->
-            EndpointAvailabilityObserver.enable_endpoint(json_rpc_named_arguments[:transport_options][:url])
+            url = json_rpc_named_arguments[:transport_options][:url]
+            EndpointAvailabilityObserver.enable_endpoint(url)
+            Logger.info("URL #{inspect(url)} is available now, switching back to it")
             acc
 
           _ ->
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_observer.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_observer.ex
index ae4d2d1f2b..833b2b67d0 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_observer.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/utility/endpoint_availability_observer.ex
@@ -5,6 +5,8 @@ defmodule EthereumJSONRPC.Utility.EndpointAvailabilityObserver do
 
   use GenServer
 
+  require Logger
+
   alias EthereumJSONRPC.Utility.EndpointAvailabilityChecker
 
   @max_error_count 3
@@ -60,6 +62,7 @@ defmodule EthereumJSONRPC.Utility.EndpointAvailabilityObserver do
 
         current_count + 1 >= @max_error_count ->
           EndpointAvailabilityChecker.add_endpoint(put_in(json_rpc_named_arguments[:transport_options][:url], url))
+          Logger.warning("URL #{inspect(url)} is unavailable, switching to fallback url")
           %{state | error_counts: Map.delete(error_counts, url), unavailable_endpoints: [url | unavailable_endpoints]}
 
         true ->
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/variant.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/variant.ex
index a88216876c..bfdf5c624f 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/variant.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/variant.ex
@@ -118,6 +118,7 @@ defmodule EthereumJSONRPC.Variant do
   # credo:disable-for-next-line
   defp get_default_variant do
     case Application.get_env(:explorer, :chain_type) do
+      "optimism" -> "geth"
       "polygon_zkevm" -> "geth"
       "zetachain" -> "geth"
       "shibarium" -> "geth"
diff --git a/apps/explorer/config/dev.exs b/apps/explorer/config/dev.exs
index a56a52620b..85e792bd27 100644
--- a/apps/explorer/config/dev.exs
+++ b/apps/explorer/config/dev.exs
@@ -11,6 +11,9 @@ config :explorer, Explorer.Repo.Replica1, timeout: :timer.seconds(80)
 # Configure Account database
 config :explorer, Explorer.Repo.Account, timeout: :timer.seconds(80)
 
+# Configure Optimism database
+config :explorer, Explorer.Repo.Optimism, timeout: :timer.seconds(80)
+
 # Configure Polygon Edge database
 config :explorer, Explorer.Repo.PolygonEdge, timeout: :timer.seconds(80)
 
diff --git a/apps/explorer/config/prod.exs b/apps/explorer/config/prod.exs
index 68279e1bac..2b74469e83 100644
--- a/apps/explorer/config/prod.exs
+++ b/apps/explorer/config/prod.exs
@@ -16,6 +16,10 @@ config :explorer, Explorer.Repo.Account,
   prepare: :unnamed,
   timeout: :timer.seconds(60)
 
+config :explorer, Explorer.Repo.Optimism,
+  prepare: :unnamed,
+  timeout: :timer.seconds(60)
+
 config :explorer, Explorer.Repo.PolygonEdge,
   prepare: :unnamed,
   timeout: :timer.seconds(60)
diff --git a/apps/explorer/config/test.exs b/apps/explorer/config/test.exs
index b1e58b464b..e815f20829 100644
--- a/apps/explorer/config/test.exs
+++ b/apps/explorer/config/test.exs
@@ -45,6 +45,7 @@ config :explorer, Explorer.Repo.Account,
 
 for repo <- [
       Explorer.Repo.Beacon,
+      Explorer.Repo.Optimism,
       Explorer.Repo.PolygonEdge,
       Explorer.Repo.PolygonZkevm,
       Explorer.Repo.RSK,
diff --git a/apps/explorer/lib/explorer/application.ex b/apps/explorer/lib/explorer/application.ex
index 713b1f51d9..aac514bed7 100644
--- a/apps/explorer/lib/explorer/application.ex
+++ b/apps/explorer/lib/explorer/application.ex
@@ -126,6 +126,7 @@ defmodule Explorer.Application do
         configure(Explorer.TokenInstanceOwnerAddressMigration.Supervisor),
         sc_microservice_configure(Explorer.Chain.Fetcher.LookUpSmartContractSourcesOnDemand),
         configure(Explorer.Chain.Cache.RootstockLockedBTC),
+        configure(Explorer.Chain.Cache.OptimismFinalizationPeriod),
         configure(Explorer.Migrator.TransactionsDenormalization),
         configure(Explorer.Migrator.AddressCurrentTokenBalanceTokenType),
         configure(Explorer.Migrator.AddressTokenBalanceTokenType),
@@ -142,6 +143,7 @@ defmodule Explorer.Application do
     if Mix.env() == :test do
       [
         Explorer.Repo.Beacon,
+        Explorer.Repo.Optimism,
         Explorer.Repo.PolygonEdge,
         Explorer.Repo.PolygonZkevm,
         Explorer.Repo.RSK,
diff --git a/apps/explorer/lib/explorer/chain.ex b/apps/explorer/lib/explorer/chain.ex
index 625025bba1..3c08bb6a36 100644
--- a/apps/explorer/lib/explorer/chain.ex
+++ b/apps/explorer/lib/explorer/chain.ex
@@ -80,6 +80,7 @@ defmodule Explorer.Chain do
   }
 
   alias Explorer.Chain.Cache.Block, as: BlockCache
+  alias Explorer.Chain.Cache.Helper, as: CacheHelper
   alias Explorer.Chain.Cache.PendingBlockOperation, as: PendingBlockOperationCache
   alias Explorer.Chain.Fetcher.{CheckBytecodeMatchingOnDemand, LookUpSmartContractSourcesOnDemand}
   alias Explorer.Chain.Import.Runner
@@ -1658,6 +1659,18 @@ defmodule Explorer.Chain do
     |> Enum.into(%{})
   end
 
+  def get_table_rows_total_count(module, options) do
+    table_name = module.__schema__(:source)
+
+    count = CacheHelper.estimated_count_from(table_name, options)
+
+    if is_nil(count) do
+      select_repo(options).aggregate(module, :count, timeout: :infinity)
+    else
+      count
+    end
+  end
+
   @doc """
   Calls `reducer` on a stream of `t:Explorer.Chain.Block.t/0` without `t:Explorer.Chain.Block.Reward.t/0`.
   """
@@ -3214,8 +3227,8 @@ defmodule Explorer.Chain do
 
   def limit_showing_transactions, do: @limit_showing_transactions
 
-  defp join_association(query, [{association, nested_preload}], necessity)
-       when is_atom(association) and is_atom(nested_preload) do
+  def join_association(query, [{association, nested_preload}], necessity)
+      when is_atom(association) and is_atom(nested_preload) do
     case necessity do
       :optional ->
         preload(query, [{^association, ^nested_preload}])
@@ -3231,7 +3244,7 @@ defmodule Explorer.Chain do
     end
   end
 
-  defp join_association(query, association, necessity) do
+  def join_association(query, association, necessity) do
     case necessity do
       :optional ->
         preload(query, ^association)
diff --git a/apps/explorer/lib/explorer/chain/address/counters.ex b/apps/explorer/lib/explorer/chain/address/counters.ex
index 25cb152caf..bdd08ecb72 100644
--- a/apps/explorer/lib/explorer/chain/address/counters.ex
+++ b/apps/explorer/lib/explorer/chain/address/counters.ex
@@ -92,7 +92,7 @@ defmodule Explorer.Chain.Address.Counters do
     if is_nil(cached_value) || cached_value == 0 do
       count = CacheHelper.estimated_count_from("addresses", options)
 
-      max(count, 0)
+      if is_nil(count), do: 0, else: max(count, 0)
     else
       cached_value
     end
diff --git a/apps/explorer/lib/explorer/chain/cache/block.ex b/apps/explorer/lib/explorer/chain/cache/block.ex
index e5d7b9ee37..0dd216a71b 100644
--- a/apps/explorer/lib/explorer/chain/cache/block.ex
+++ b/apps/explorer/lib/explorer/chain/cache/block.ex
@@ -40,9 +40,7 @@ defmodule Explorer.Chain.Cache.Block do
         |> Decimal.to_integer()
 
       if cached_value_from_db === 0 do
-        count = Helper.estimated_count_from("blocks")
-
-        trunc(count * 0.90)
+        estimated_count_from_blocks()
       else
         cached_value_from_db
       end
@@ -51,6 +49,12 @@ defmodule Explorer.Chain.Cache.Block do
     end
   end
 
+  defp estimated_count_from_blocks do
+    count = Helper.estimated_count_from("blocks")
+
+    if is_nil(count), do: 0, else: trunc(count * 0.90)
+  end
+
   defp handle_fallback(:count) do
     # This will get the task PID if one exists and launch a new task if not
     # See next `handle_fallback` definition
diff --git a/apps/explorer/lib/explorer/chain/cache/helper.ex b/apps/explorer/lib/explorer/chain/cache/helper.ex
index 61047c5f8e..4e9bd92bd0 100644
--- a/apps/explorer/lib/explorer/chain/cache/helper.ex
+++ b/apps/explorer/lib/explorer/chain/cache/helper.ex
@@ -7,7 +7,7 @@ defmodule Explorer.Chain.Cache.Helper do
   def estimated_count_from(table_name, options \\ []) do
     %Postgrex.Result{rows: [[count]]} =
       Chain.select_repo(options).query!(
-        "SELECT reltuples::BIGINT AS estimate FROM pg_class WHERE relname = '#{table_name}';"
+        "SELECT (CASE WHEN c.reltuples < 0 THEN NULL WHEN c.relpages = 0 THEN float8 '0' ELSE c.reltuples / c.relpages END * (pg_catalog.pg_relation_size(c.oid) / pg_catalog.current_setting('block_size')::int))::bigint FROM pg_catalog.pg_class c WHERE c.oid = '#{table_name}'::regclass"
       )
 
     count
diff --git a/apps/explorer/lib/explorer/chain/cache/optimism_finalization_period.ex b/apps/explorer/lib/explorer/chain/cache/optimism_finalization_period.ex
new file mode 100644
index 0000000000..aa09cf2148
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/cache/optimism_finalization_period.ex
@@ -0,0 +1,54 @@
+defmodule Explorer.Chain.Cache.OptimismFinalizationPeriod do
+  @moduledoc """
+  Caches Optimism Finalization period.
+  """
+
+  require Logger
+
+  use Explorer.Chain.MapCache,
+    name: :optimism_finalization_period,
+    key: :period
+
+  import EthereumJSONRPC, only: [json_rpc: 2, quantity_to_integer: 1]
+
+  alias EthereumJSONRPC.Contract
+  alias Indexer.Fetcher.Optimism
+  alias Indexer.Fetcher.Optimism.OutputRoot
+
+  defp handle_fallback(:period) do
+    optimism_l1_rpc = Application.get_all_env(:indexer)[Optimism][:optimism_l1_rpc]
+    output_oracle = Application.get_all_env(:indexer)[OutputRoot][:output_oracle]
+
+    # call FINALIZATION_PERIOD_SECONDS() public getter of L2OutputOracle contract on L1
+    request = Contract.eth_call_request("0xf4daa291", output_oracle, 0, nil, nil)
+
+    case json_rpc(request, json_rpc_named_arguments(optimism_l1_rpc)) do
+      {:ok, value} ->
+        {:update, quantity_to_integer(value)}
+
+      {:error, reason} ->
+        Logger.debug([
+          "Couldn't fetch Optimism finalization period, reason: #{inspect(reason)}"
+        ])
+
+        {:return, nil}
+    end
+  end
+
+  defp handle_fallback(_key), do: {:return, nil}
+
+  defp json_rpc_named_arguments(optimism_l1_rpc) do
+    [
+      transport: EthereumJSONRPC.HTTP,
+      transport_options: [
+        http: EthereumJSONRPC.HTTP.HTTPoison,
+        url: optimism_l1_rpc,
+        http_options: [
+          recv_timeout: :timer.minutes(10),
+          timeout: :timer.minutes(10),
+          hackney: [pool: :ethereum_jsonrpc]
+        ]
+      ]
+    ]
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/cache/pending_block_operation.ex b/apps/explorer/lib/explorer/chain/cache/pending_block_operation.ex
index dc0f01e59c..6980087afa 100644
--- a/apps/explorer/lib/explorer/chain/cache/pending_block_operation.ex
+++ b/apps/explorer/lib/explorer/chain/cache/pending_block_operation.ex
@@ -28,7 +28,7 @@ defmodule Explorer.Chain.Cache.PendingBlockOperation do
     if is_nil(cached_value) do
       count = Helper.estimated_count_from("pending_block_operations")
 
-      max(count, 0)
+      if is_nil(count), do: 0, else: max(count, 0)
     else
       cached_value
     end
diff --git a/apps/explorer/lib/explorer/chain/cache/transaction.ex b/apps/explorer/lib/explorer/chain/cache/transaction.ex
index 299294b153..dd909502a4 100644
--- a/apps/explorer/lib/explorer/chain/cache/transaction.ex
+++ b/apps/explorer/lib/explorer/chain/cache/transaction.ex
@@ -29,7 +29,7 @@ defmodule Explorer.Chain.Cache.Transaction do
     if is_nil(cached_value) do
       count = Helper.estimated_count_from("transactions")
 
-      max(count, 0)
+      if is_nil(count), do: 0, else: count
     else
       cached_value
     end
diff --git a/apps/explorer/lib/explorer/chain/events/publisher.ex b/apps/explorer/lib/explorer/chain/events/publisher.ex
index 87da3c8e91..1b45c84c94 100644
--- a/apps/explorer/lib/explorer/chain/events/publisher.ex
+++ b/apps/explorer/lib/explorer/chain/events/publisher.ex
@@ -3,7 +3,7 @@ defmodule Explorer.Chain.Events.Publisher do
   Publishes events related to the Chain context.
   """
 
-  @allowed_events ~w(addresses address_coin_balances address_token_balances address_current_token_balances blocks block_rewards internal_transactions last_block_number token_transfers transactions contract_verification_result token_total_supply changed_bytecode smart_contract_was_verified zkevm_confirmed_batches eth_bytecode_db_lookup_started smart_contract_was_not_verified)a
+  @allowed_events ~w(addresses address_coin_balances address_token_balances address_current_token_balances blocks block_rewards internal_transactions last_block_number optimism_deposits optimism_reorg_block token_transfers transactions contract_verification_result token_total_supply changed_bytecode smart_contract_was_verified zkevm_confirmed_batches eth_bytecode_db_lookup_started smart_contract_was_not_verified)a
 
   def broadcast(_data, false), do: :ok
 
diff --git a/apps/explorer/lib/explorer/chain/events/subscriber.ex b/apps/explorer/lib/explorer/chain/events/subscriber.ex
index f073afb8eb..c161bb124a 100644
--- a/apps/explorer/lib/explorer/chain/events/subscriber.ex
+++ b/apps/explorer/lib/explorer/chain/events/subscriber.ex
@@ -3,7 +3,7 @@ defmodule Explorer.Chain.Events.Subscriber do
   Subscribes to events related to the Chain context.
   """
 
-  @allowed_broadcast_events ~w(addresses address_coin_balances address_token_balances address_current_token_balances blocks block_rewards internal_transactions last_block_number token_transfers transactions contract_verification_result token_total_supply changed_bytecode smart_contract_was_verified zkevm_confirmed_batches eth_bytecode_db_lookup_started smart_contract_was_not_verified)a
+  @allowed_broadcast_events ~w(addresses address_coin_balances address_token_balances address_current_token_balances blocks block_rewards internal_transactions last_block_number optimism_deposits optimism_reorg_block token_transfers transactions contract_verification_result token_total_supply changed_bytecode smart_contract_was_verified zkevm_confirmed_batches eth_bytecode_db_lookup_started smart_contract_was_not_verified)a
 
   @allowed_broadcast_types ~w(catchup realtime on_demand contract_verification_result)a
 
diff --git a/apps/explorer/lib/explorer/chain/import/runner/optimism/deposits.ex b/apps/explorer/lib/explorer/chain/import/runner/optimism/deposits.ex
new file mode 100644
index 0000000000..0422a625f3
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/import/runner/optimism/deposits.ex
@@ -0,0 +1,106 @@
+defmodule Explorer.Chain.Import.Runner.Optimism.Deposits do
+  @moduledoc """
+  Bulk imports `t:Explorer.Chain.Deposit.t/0`.
+  """
+
+  require Ecto.Query
+
+  alias Ecto.{Changeset, Multi, Repo}
+  alias Explorer.Chain.Import
+  alias Explorer.Chain.Optimism.Deposit
+  alias Explorer.Prometheus.Instrumenter
+
+  import Ecto.Query, only: [from: 2]
+
+  @behaviour Import.Runner
+
+  # milliseconds
+  @timeout 60_000
+
+  @type imported :: [Deposit.t()]
+
+  @impl Import.Runner
+  def ecto_schema_module, do: Deposit
+
+  @impl Import.Runner
+  def option_key, do: :optimism_deposits
+
+  @impl Import.Runner
+  def imported_table_row do
+    %{
+      value_type: "[#{ecto_schema_module()}.t()]",
+      value_description: "List of `t:#{ecto_schema_module()}.t/0`s"
+    }
+  end
+
+  @impl Import.Runner
+  def run(multi, changes_list, %{timestamps: timestamps} = options) do
+    insert_options =
+      options
+      |> Map.get(option_key(), %{})
+      |> Map.take(~w(on_conflict timeout)a)
+      |> Map.put_new(:timeout, @timeout)
+      |> Map.put(:timestamps, timestamps)
+
+    Multi.run(multi, :insert_optimism_deposits, fn repo, _ ->
+      Instrumenter.block_import_stage_runner(
+        fn -> insert(repo, changes_list, insert_options) end,
+        :block_referencing,
+        :optimism_deposits,
+        :optimism_deposits
+      )
+    end)
+  end
+
+  @impl Import.Runner
+  def timeout, do: @timeout
+
+  @spec insert(Repo.t(), [map()], %{required(:timeout) => timeout(), required(:timestamps) => Import.timestamps()}) ::
+          {:ok, [Deposit.t()]}
+          | {:error, [Changeset.t()]}
+  def insert(repo, changes_list, %{timeout: timeout, timestamps: timestamps} = options) when is_list(changes_list) do
+    on_conflict = Map.get_lazy(options, :on_conflict, &default_on_conflict/0)
+
+    # Enforce Deposit ShareLocks order (see docs: sharelock.md)
+    ordered_changes_list = Enum.sort_by(changes_list, & &1.l2_transaction_hash)
+
+    {:ok, inserted} =
+      Import.insert_changes_list(
+        repo,
+        ordered_changes_list,
+        for: Deposit,
+        returning: true,
+        timeout: timeout,
+        timestamps: timestamps,
+        conflict_target: :l2_transaction_hash,
+        on_conflict: on_conflict
+      )
+
+    {:ok, inserted}
+  end
+
+  defp default_on_conflict do
+    from(
+      deposit in Deposit,
+      update: [
+        set: [
+          # don't update `l2_transaction_hash` as it is a primary key and used for the conflict target
+          l1_block_number: fragment("EXCLUDED.l1_block_number"),
+          l1_block_timestamp: fragment("EXCLUDED.l1_block_timestamp"),
+          l1_transaction_hash: fragment("EXCLUDED.l1_transaction_hash"),
+          l1_transaction_origin: fragment("EXCLUDED.l1_transaction_origin"),
+          inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", deposit.inserted_at),
+          updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", deposit.updated_at)
+        ]
+      ],
+      where:
+        fragment(
+          "(EXCLUDED.l1_block_number, EXCLUDED.l1_block_timestamp, EXCLUDED.l1_transaction_hash, EXCLUDED.l1_transaction_origin) IS DISTINCT FROM (?, ?, ?, ?)",
+          deposit.l1_block_number,
+          deposit.l1_block_timestamp,
+          deposit.l1_transaction_hash,
+          deposit.l1_transaction_origin
+        )
+    )
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/import/runner/optimism/frame_sequences.ex b/apps/explorer/lib/explorer/chain/import/runner/optimism/frame_sequences.ex
new file mode 100644
index 0000000000..bf45f5354d
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/import/runner/optimism/frame_sequences.ex
@@ -0,0 +1,102 @@
+defmodule Explorer.Chain.Import.Runner.Optimism.FrameSequences do
+  @moduledoc """
+  Bulk imports `t:Explorer.Chain.Optimism.FrameSequence.t/0`.
+  """
+
+  require Ecto.Query
+
+  alias Ecto.{Changeset, Multi, Repo}
+  alias Explorer.Chain.Import
+  alias Explorer.Chain.Optimism.FrameSequence
+  alias Explorer.Prometheus.Instrumenter
+
+  import Ecto.Query, only: [from: 2]
+
+  @behaviour Import.Runner
+
+  # milliseconds
+  @timeout 60_000
+
+  @type imported :: [FrameSequence.t()]
+
+  @impl Import.Runner
+  def ecto_schema_module, do: FrameSequence
+
+  @impl Import.Runner
+  def option_key, do: :optimism_frame_sequences
+
+  @impl Import.Runner
+  def imported_table_row do
+    %{
+      value_type: "[#{ecto_schema_module()}.t()]",
+      value_description: "List of `t:#{ecto_schema_module()}.t/0`s"
+    }
+  end
+
+  @impl Import.Runner
+  def run(multi, changes_list, %{timestamps: timestamps} = options) do
+    insert_options =
+      options
+      |> Map.get(option_key(), %{})
+      |> Map.take(~w(on_conflict timeout)a)
+      |> Map.put_new(:timeout, @timeout)
+      |> Map.put(:timestamps, timestamps)
+
+    Multi.run(multi, :insert_frame_sequences, fn repo, _ ->
+      Instrumenter.block_import_stage_runner(
+        fn -> insert(repo, changes_list, insert_options) end,
+        :block_referencing,
+        :optimism_frame_sequences,
+        :optimism_frame_sequences
+      )
+    end)
+  end
+
+  @impl Import.Runner
+  def timeout, do: @timeout
+
+  @spec insert(Repo.t(), [map()], %{required(:timeout) => timeout(), required(:timestamps) => Import.timestamps()}) ::
+          {:ok, [FrameSequence.t()]}
+          | {:error, [Changeset.t()]}
+  def insert(repo, changes_list, %{timeout: timeout, timestamps: timestamps} = options) when is_list(changes_list) do
+    on_conflict = Map.get_lazy(options, :on_conflict, &default_on_conflict/0)
+
+    # Enforce FrameSequence ShareLocks order (see docs: sharelock.md)
+    ordered_changes_list = Enum.sort_by(changes_list, & &1.id)
+
+    {:ok, inserted} =
+      Import.insert_changes_list(
+        repo,
+        ordered_changes_list,
+        for: FrameSequence,
+        returning: true,
+        timeout: timeout,
+        timestamps: timestamps,
+        conflict_target: :id,
+        on_conflict: on_conflict
+      )
+
+    {:ok, inserted}
+  end
+
+  defp default_on_conflict do
+    from(
+      fs in FrameSequence,
+      update: [
+        set: [
+          # don't update `id` as it is a primary key and used for the conflict target
+          l1_transaction_hashes: fragment("EXCLUDED.l1_transaction_hashes"),
+          l1_timestamp: fragment("EXCLUDED.l1_timestamp"),
+          inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", fs.inserted_at),
+          updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", fs.updated_at)
+        ]
+      ],
+      where:
+        fragment(
+          "(EXCLUDED.l1_transaction_hashes, EXCLUDED.l1_timestamp) IS DISTINCT FROM (?, ?)",
+          fs.l1_transaction_hashes,
+          fs.l1_timestamp
+        )
+    )
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/import/runner/optimism/output_roots.ex b/apps/explorer/lib/explorer/chain/import/runner/optimism/output_roots.ex
new file mode 100644
index 0000000000..d0027bc483
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/import/runner/optimism/output_roots.ex
@@ -0,0 +1,108 @@
+defmodule Explorer.Chain.Import.Runner.Optimism.OutputRoots do
+  @moduledoc """
+  Bulk imports `t:Explorer.Chain.Optimism.OutputRoot.t/0`.
+  """
+
+  require Ecto.Query
+
+  alias Ecto.{Changeset, Multi, Repo}
+  alias Explorer.Chain.Import
+  alias Explorer.Chain.Optimism.OutputRoot
+  alias Explorer.Prometheus.Instrumenter
+
+  import Ecto.Query, only: [from: 2]
+
+  @behaviour Import.Runner
+
+  # milliseconds
+  @timeout 60_000
+
+  @type imported :: [OutputRoot.t()]
+
+  @impl Import.Runner
+  def ecto_schema_module, do: OutputRoot
+
+  @impl Import.Runner
+  def option_key, do: :optimism_output_roots
+
+  @impl Import.Runner
+  def imported_table_row do
+    %{
+      value_type: "[#{ecto_schema_module()}.t()]",
+      value_description: "List of `t:#{ecto_schema_module()}.t/0`s"
+    }
+  end
+
+  @impl Import.Runner
+  def run(multi, changes_list, %{timestamps: timestamps} = options) do
+    insert_options =
+      options
+      |> Map.get(option_key(), %{})
+      |> Map.take(~w(on_conflict timeout)a)
+      |> Map.put_new(:timeout, @timeout)
+      |> Map.put(:timestamps, timestamps)
+
+    Multi.run(multi, :insert_output_roots, fn repo, _ ->
+      Instrumenter.block_import_stage_runner(
+        fn -> insert(repo, changes_list, insert_options) end,
+        :block_referencing,
+        :optimism_output_roots,
+        :optimism_output_roots
+      )
+    end)
+  end
+
+  @impl Import.Runner
+  def timeout, do: @timeout
+
+  @spec insert(Repo.t(), [map()], %{required(:timeout) => timeout(), required(:timestamps) => Import.timestamps()}) ::
+          {:ok, [OutputRoot.t()]}
+          | {:error, [Changeset.t()]}
+  def insert(repo, changes_list, %{timeout: timeout, timestamps: timestamps} = options) when is_list(changes_list) do
+    on_conflict = Map.get_lazy(options, :on_conflict, &default_on_conflict/0)
+
+    # Enforce OutputRoot ShareLocks order (see docs: sharelock.md)
+    ordered_changes_list = Enum.sort_by(changes_list, & &1.l2_output_index)
+
+    {:ok, inserted} =
+      Import.insert_changes_list(
+        repo,
+        ordered_changes_list,
+        for: OutputRoot,
+        returning: true,
+        timeout: timeout,
+        timestamps: timestamps,
+        conflict_target: :l2_output_index,
+        on_conflict: on_conflict
+      )
+
+    {:ok, inserted}
+  end
+
+  defp default_on_conflict do
+    from(
+      root in OutputRoot,
+      update: [
+        set: [
+          # don't update `l2_output_index` as it is a primary key and used for the conflict target
+          l2_block_number: fragment("EXCLUDED.l2_block_number"),
+          l1_transaction_hash: fragment("EXCLUDED.l1_transaction_hash"),
+          l1_timestamp: fragment("EXCLUDED.l1_timestamp"),
+          l1_block_number: fragment("EXCLUDED.l1_block_number"),
+          output_root: fragment("EXCLUDED.output_root"),
+          inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", root.inserted_at),
+          updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", root.updated_at)
+        ]
+      ],
+      where:
+        fragment(
+          "(EXCLUDED.l2_block_number, EXCLUDED.l1_transaction_hash, EXCLUDED.l1_timestamp, EXCLUDED.l1_block_number, EXCLUDED.output_root) IS DISTINCT FROM (?, ?, ?, ?, ?)",
+          root.l2_block_number,
+          root.l1_transaction_hash,
+          root.l1_timestamp,
+          root.l1_block_number,
+          root.output_root
+        )
+    )
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/import/runner/optimism/txn_batches.ex b/apps/explorer/lib/explorer/chain/import/runner/optimism/txn_batches.ex
new file mode 100644
index 0000000000..5b84ef3755
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/import/runner/optimism/txn_batches.ex
@@ -0,0 +1,100 @@
+defmodule Explorer.Chain.Import.Runner.Optimism.TxnBatches do
+  @moduledoc """
+  Bulk imports `t:Explorer.Chain.Optimism.TxnBatch.t/0`.
+  """
+
+  require Ecto.Query
+
+  alias Ecto.{Changeset, Multi, Repo}
+  alias Explorer.Chain.Import
+  alias Explorer.Chain.Optimism.TxnBatch
+  alias Explorer.Prometheus.Instrumenter
+
+  import Ecto.Query, only: [from: 2]
+
+  @behaviour Import.Runner
+
+  # milliseconds
+  @timeout 60_000
+
+  @type imported :: [TxnBatch.t()]
+
+  @impl Import.Runner
+  def ecto_schema_module, do: TxnBatch
+
+  @impl Import.Runner
+  def option_key, do: :optimism_txn_batches
+
+  @impl Import.Runner
+  def imported_table_row do
+    %{
+      value_type: "[#{ecto_schema_module()}.t()]",
+      value_description: "List of `t:#{ecto_schema_module()}.t/0`s"
+    }
+  end
+
+  @impl Import.Runner
+  def run(multi, changes_list, %{timestamps: timestamps} = options) do
+    insert_options =
+      options
+      |> Map.get(option_key(), %{})
+      |> Map.take(~w(on_conflict timeout)a)
+      |> Map.put_new(:timeout, @timeout)
+      |> Map.put(:timestamps, timestamps)
+
+    Multi.run(multi, :insert_txn_batches, fn repo, _ ->
+      Instrumenter.block_import_stage_runner(
+        fn -> insert(repo, changes_list, insert_options) end,
+        :block_referencing,
+        :optimism_txn_batches,
+        :optimism_txn_batches
+      )
+    end)
+  end
+
+  @impl Import.Runner
+  def timeout, do: @timeout
+
+  @spec insert(Repo.t(), [map()], %{required(:timeout) => timeout(), required(:timestamps) => Import.timestamps()}) ::
+          {:ok, [TxnBatch.t()]}
+          | {:error, [Changeset.t()]}
+  def insert(repo, changes_list, %{timeout: timeout, timestamps: timestamps} = options) when is_list(changes_list) do
+    on_conflict = Map.get_lazy(options, :on_conflict, &default_on_conflict/0)
+
+    # Enforce TxnBatch ShareLocks order (see docs: sharelock.md)
+    ordered_changes_list = Enum.sort_by(changes_list, & &1.l2_block_number)
+
+    {:ok, inserted} =
+      Import.insert_changes_list(
+        repo,
+        ordered_changes_list,
+        for: TxnBatch,
+        returning: true,
+        timeout: timeout,
+        timestamps: timestamps,
+        conflict_target: :l2_block_number,
+        on_conflict: on_conflict
+      )
+
+    {:ok, inserted}
+  end
+
+  defp default_on_conflict do
+    from(
+      tb in TxnBatch,
+      update: [
+        set: [
+          # don't update `l2_block_number` as it is a primary key and used for the conflict target
+          frame_sequence_id: fragment("EXCLUDED.frame_sequence_id"),
+          inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", tb.inserted_at),
+          updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", tb.updated_at)
+        ]
+      ],
+      where:
+        fragment(
+          "(EXCLUDED.frame_sequence_id) IS DISTINCT FROM (?)",
+          tb.frame_sequence_id
+        )
+    )
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawal_events.ex b/apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawal_events.ex
new file mode 100644
index 0000000000..95869f5435
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawal_events.ex
@@ -0,0 +1,105 @@
+defmodule Explorer.Chain.Import.Runner.Optimism.WithdrawalEvents do
+  @moduledoc """
+  Bulk imports `t:Explorer.Chain.Optimism.WithdrawalEvent.t/0`.
+  """
+
+  require Ecto.Query
+
+  alias Ecto.{Changeset, Multi, Repo}
+  alias Explorer.Chain.Import
+  alias Explorer.Chain.Optimism.WithdrawalEvent
+  alias Explorer.Prometheus.Instrumenter
+
+  import Ecto.Query, only: [from: 2]
+
+  @behaviour Import.Runner
+
+  # milliseconds
+  @timeout 60_000
+
+  @type imported :: [WithdrawalEvent.t()]
+
+  @impl Import.Runner
+  def ecto_schema_module, do: WithdrawalEvent
+
+  @impl Import.Runner
+  def option_key, do: :optimism_withdrawal_events
+
+  @impl Import.Runner
+  def imported_table_row do
+    %{
+      value_type: "[#{ecto_schema_module()}.t()]",
+      value_description: "List of `t:#{ecto_schema_module()}.t/0`s"
+    }
+  end
+
+  @impl Import.Runner
+  def run(multi, changes_list, %{timestamps: timestamps} = options) do
+    insert_options =
+      options
+      |> Map.get(option_key(), %{})
+      |> Map.take(~w(on_conflict timeout)a)
+      |> Map.put_new(:timeout, @timeout)
+      |> Map.put(:timestamps, timestamps)
+
+    Multi.run(multi, :insert_withdrawal_events, fn repo, _ ->
+      Instrumenter.block_import_stage_runner(
+        fn -> insert(repo, changes_list, insert_options) end,
+        :block_referencing,
+        :optimism_withdrawal_events,
+        :optimism_withdrawal_events
+      )
+    end)
+  end
+
+  @impl Import.Runner
+  def timeout, do: @timeout
+
+  @spec insert(Repo.t(), [map()], %{required(:timeout) => timeout(), required(:timestamps) => Import.timestamps()}) ::
+          {:ok, [WithdrawalEvent.t()]}
+          | {:error, [Changeset.t()]}
+  def insert(repo, changes_list, %{timeout: timeout, timestamps: timestamps} = options) when is_list(changes_list) do
+    on_conflict = Map.get_lazy(options, :on_conflict, &default_on_conflict/0)
+
+    # Enforce WithdrawalEvent ShareLocks order (see docs: sharelock.md)
+    ordered_changes_list = Enum.sort_by(changes_list, &{&1.withdrawal_hash, &1.l1_event_type})
+
+    {:ok, inserted} =
+      Import.insert_changes_list(
+        repo,
+        ordered_changes_list,
+        for: WithdrawalEvent,
+        returning: true,
+        timeout: timeout,
+        timestamps: timestamps,
+        conflict_target: [:withdrawal_hash, :l1_event_type],
+        on_conflict: on_conflict
+      )
+
+    {:ok, inserted}
+  end
+
+  defp default_on_conflict do
+    from(
+      we in WithdrawalEvent,
+      update: [
+        set: [
+          # don't update `withdrawal_hash` as it is a part of the composite primary key and used for the conflict target
+          # don't update `l1_event_type` as it is a part of the composite primary key and used for the conflict target
+          l1_timestamp: fragment("EXCLUDED.l1_timestamp"),
+          l1_transaction_hash: fragment("EXCLUDED.l1_transaction_hash"),
+          l1_block_number: fragment("EXCLUDED.l1_block_number"),
+          inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", we.inserted_at),
+          updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", we.updated_at)
+        ]
+      ],
+      where:
+        fragment(
+          "(EXCLUDED.l1_timestamp, EXCLUDED.l1_transaction_hash, EXCLUDED.l1_block_number) IS DISTINCT FROM (?, ?, ?)",
+          we.l1_timestamp,
+          we.l1_transaction_hash,
+          we.l1_block_number
+        )
+    )
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawals.ex b/apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawals.ex
new file mode 100644
index 0000000000..450c97b070
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/import/runner/optimism/withdrawals.ex
@@ -0,0 +1,104 @@
+defmodule Explorer.Chain.Import.Runner.Optimism.Withdrawals do
+  @moduledoc """
+  Bulk imports `t:Explorer.Chain.OptimismWithdrawal.t/0`.
+  """
+
+  require Ecto.Query
+
+  alias Ecto.{Changeset, Multi, Repo}
+  alias Explorer.Chain.Import
+  alias Explorer.Chain.Optimism.Withdrawal, as: OptimismWithdrawal
+  alias Explorer.Prometheus.Instrumenter
+
+  import Ecto.Query, only: [from: 2]
+
+  @behaviour Import.Runner
+
+  # milliseconds
+  @timeout 60_000
+
+  @type imported :: [OptimismWithdrawal.t()]
+
+  @impl Import.Runner
+  def ecto_schema_module, do: OptimismWithdrawal
+
+  @impl Import.Runner
+  def option_key, do: :optimism_withdrawals
+
+  @impl Import.Runner
+  def imported_table_row do
+    %{
+      value_type: "[#{ecto_schema_module()}.t()]",
+      value_description: "List of `t:#{ecto_schema_module()}.t/0`s"
+    }
+  end
+
+  @impl Import.Runner
+  def run(multi, changes_list, %{timestamps: timestamps} = options) do
+    insert_options =
+      options
+      |> Map.get(option_key(), %{})
+      |> Map.take(~w(on_conflict timeout)a)
+      |> Map.put_new(:timeout, @timeout)
+      |> Map.put(:timestamps, timestamps)
+
+    Multi.run(multi, :insert_withdrawals, fn repo, _ ->
+      Instrumenter.block_import_stage_runner(
+        fn -> insert(repo, changes_list, insert_options) end,
+        :block_referencing,
+        :optimism_withdrawals,
+        :optimism_withdrawals
+      )
+    end)
+  end
+
+  @impl Import.Runner
+  def timeout, do: @timeout
+
+  @spec insert(Repo.t(), [map()], %{required(:timeout) => timeout(), required(:timestamps) => Import.timestamps()}) ::
+          {:ok, [OptimismWithdrawal.t()]}
+          | {:error, [Changeset.t()]}
+  def insert(repo, changes_list, %{timeout: timeout, timestamps: timestamps} = options) when is_list(changes_list) do
+    on_conflict = Map.get_lazy(options, :on_conflict, &default_on_conflict/0)
+
+    # Enforce OptimismWithdrawal ShareLocks order (see docs: sharelock.md)
+    ordered_changes_list = Enum.sort_by(changes_list, & &1.msg_nonce)
+
+    {:ok, inserted} =
+      Import.insert_changes_list(
+        repo,
+        ordered_changes_list,
+        for: OptimismWithdrawal,
+        returning: true,
+        timeout: timeout,
+        timestamps: timestamps,
+        conflict_target: :msg_nonce,
+        on_conflict: on_conflict
+      )
+
+    {:ok, inserted}
+  end
+
+  defp default_on_conflict do
+    from(
+      withdrawal in OptimismWithdrawal,
+      update: [
+        set: [
+          # don't update `msg_nonce` as it is a primary key and used for the conflict target
+          hash: fragment("EXCLUDED.hash"),
+          l2_transaction_hash: fragment("EXCLUDED.l2_transaction_hash"),
+          l2_block_number: fragment("EXCLUDED.l2_block_number"),
+          inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", withdrawal.inserted_at),
+          updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", withdrawal.updated_at)
+        ]
+      ],
+      where:
+        fragment(
+          "(EXCLUDED.hash, EXCLUDED.l2_transaction_hash, EXCLUDED.l2_block_number) IS DISTINCT FROM (?, ?, ?)",
+          withdrawal.hash,
+          withdrawal.l2_transaction_hash,
+          withdrawal.l2_block_number
+        )
+    )
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/import/runner/transactions.ex b/apps/explorer/lib/explorer/chain/import/runner/transactions.ex
index 5e8e124e91..1f0098afc2 100644
--- a/apps/explorer/lib/explorer/chain/import/runner/transactions.ex
+++ b/apps/explorer/lib/explorer/chain/import/runner/transactions.ex
@@ -108,168 +108,250 @@ defmodule Explorer.Chain.Import.Runner.Transactions do
   end
 
   defp default_on_conflict do
-    if System.get_env("CHAIN_TYPE") == "suave" do
-      from(
-        transaction in Transaction,
-        update: [
-          set: [
-            block_hash: fragment("EXCLUDED.block_hash"),
-            old_block_hash: transaction.block_hash,
-            block_number: fragment("EXCLUDED.block_number"),
-            block_consensus: fragment("EXCLUDED.block_consensus"),
-            block_timestamp: fragment("EXCLUDED.block_timestamp"),
-            created_contract_address_hash: fragment("EXCLUDED.created_contract_address_hash"),
-            created_contract_code_indexed_at: fragment("EXCLUDED.created_contract_code_indexed_at"),
-            cumulative_gas_used: fragment("EXCLUDED.cumulative_gas_used"),
-            error: fragment("EXCLUDED.error"),
-            from_address_hash: fragment("EXCLUDED.from_address_hash"),
-            gas: fragment("EXCLUDED.gas"),
-            gas_price: fragment("EXCLUDED.gas_price"),
-            gas_used: fragment("EXCLUDED.gas_used"),
-            index: fragment("EXCLUDED.index"),
-            input: fragment("EXCLUDED.input"),
-            nonce: fragment("EXCLUDED.nonce"),
-            r: fragment("EXCLUDED.r"),
-            s: fragment("EXCLUDED.s"),
-            status: fragment("EXCLUDED.status"),
-            to_address_hash: fragment("EXCLUDED.to_address_hash"),
-            v: fragment("EXCLUDED.v"),
-            value: fragment("EXCLUDED.value"),
-            earliest_processing_start: fragment("EXCLUDED.earliest_processing_start"),
-            revert_reason: fragment("EXCLUDED.revert_reason"),
-            max_priority_fee_per_gas: fragment("EXCLUDED.max_priority_fee_per_gas"),
-            max_fee_per_gas: fragment("EXCLUDED.max_fee_per_gas"),
-            type: fragment("EXCLUDED.type"),
-            execution_node_hash: fragment("EXCLUDED.execution_node_hash"),
-            wrapped_type: fragment("EXCLUDED.wrapped_type"),
-            wrapped_nonce: fragment("EXCLUDED.wrapped_nonce"),
-            wrapped_to_address_hash: fragment("EXCLUDED.wrapped_to_address_hash"),
-            wrapped_gas: fragment("EXCLUDED.wrapped_gas"),
-            wrapped_gas_price: fragment("EXCLUDED.wrapped_gas_price"),
-            wrapped_max_priority_fee_per_gas: fragment("EXCLUDED.wrapped_max_priority_fee_per_gas"),
-            wrapped_max_fee_per_gas: fragment("EXCLUDED.wrapped_max_fee_per_gas"),
-            wrapped_value: fragment("EXCLUDED.wrapped_value"),
-            wrapped_input: fragment("EXCLUDED.wrapped_input"),
-            wrapped_v: fragment("EXCLUDED.wrapped_v"),
-            wrapped_r: fragment("EXCLUDED.wrapped_r"),
-            wrapped_s: fragment("EXCLUDED.wrapped_s"),
-            wrapped_hash: fragment("EXCLUDED.wrapped_hash"),
-            # Don't update `hash` as it is part of the primary key and used for the conflict target
-            inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", transaction.inserted_at),
-            updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", transaction.updated_at)
-          ]
-        ],
-        where:
-          fragment(
-            "(EXCLUDED.block_hash, EXCLUDED.block_number, EXCLUDED.block_consensus, EXCLUDED.block_timestamp, EXCLUDED.created_contract_address_hash, EXCLUDED.created_contract_code_indexed_at, EXCLUDED.cumulative_gas_used, EXCLUDED.from_address_hash, EXCLUDED.gas, EXCLUDED.gas_price, EXCLUDED.gas_used, EXCLUDED.index, EXCLUDED.input, EXCLUDED.nonce, EXCLUDED.r, EXCLUDED.s, EXCLUDED.status, EXCLUDED.to_address_hash, EXCLUDED.v, EXCLUDED.value, EXCLUDED.earliest_processing_start, EXCLUDED.revert_reason, EXCLUDED.max_priority_fee_per_gas, EXCLUDED.max_fee_per_gas, EXCLUDED.type, EXCLUDED.execution_node_hash, EXCLUDED.wrapped_type, EXCLUDED.wrapped_nonce, EXCLUDED.wrapped_to_address_hash, EXCLUDED.wrapped_gas, EXCLUDED.wrapped_gas_price, EXCLUDED.wrapped_max_priority_fee_per_gas, EXCLUDED.wrapped_max_fee_per_gas, EXCLUDED.wrapped_value, EXCLUDED.wrapped_input, EXCLUDED.wrapped_v, EXCLUDED.wrapped_r, EXCLUDED.wrapped_s, EXCLUDED.wrapped_hash) IS DISTINCT FROM (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
-            transaction.block_hash,
-            transaction.block_number,
-            transaction.block_consensus,
-            transaction.block_timestamp,
-            transaction.created_contract_address_hash,
-            transaction.created_contract_code_indexed_at,
-            transaction.cumulative_gas_used,
-            transaction.from_address_hash,
-            transaction.gas,
-            transaction.gas_price,
-            transaction.gas_used,
-            transaction.index,
-            transaction.input,
-            transaction.nonce,
-            transaction.r,
-            transaction.s,
-            transaction.status,
-            transaction.to_address_hash,
-            transaction.v,
-            transaction.value,
-            transaction.earliest_processing_start,
-            transaction.revert_reason,
-            transaction.max_priority_fee_per_gas,
-            transaction.max_fee_per_gas,
-            transaction.type,
-            transaction.execution_node_hash,
-            transaction.wrapped_type,
-            transaction.wrapped_nonce,
-            transaction.wrapped_to_address_hash,
-            transaction.wrapped_gas,
-            transaction.wrapped_gas_price,
-            transaction.wrapped_max_priority_fee_per_gas,
-            transaction.wrapped_max_fee_per_gas,
-            transaction.wrapped_value,
-            transaction.wrapped_input,
-            transaction.wrapped_v,
-            transaction.wrapped_r,
-            transaction.wrapped_s,
-            transaction.wrapped_hash
-          )
-      )
-    else
-      from(
-        transaction in Transaction,
-        update: [
-          set: [
-            block_hash: fragment("EXCLUDED.block_hash"),
-            old_block_hash: transaction.block_hash,
-            block_number: fragment("EXCLUDED.block_number"),
-            block_consensus: fragment("EXCLUDED.block_consensus"),
-            block_timestamp: fragment("EXCLUDED.block_timestamp"),
-            created_contract_address_hash: fragment("EXCLUDED.created_contract_address_hash"),
-            created_contract_code_indexed_at: fragment("EXCLUDED.created_contract_code_indexed_at"),
-            cumulative_gas_used: fragment("EXCLUDED.cumulative_gas_used"),
-            error: fragment("EXCLUDED.error"),
-            from_address_hash: fragment("EXCLUDED.from_address_hash"),
-            gas: fragment("EXCLUDED.gas"),
-            gas_price: fragment("EXCLUDED.gas_price"),
-            gas_used: fragment("EXCLUDED.gas_used"),
-            index: fragment("EXCLUDED.index"),
-            input: fragment("EXCLUDED.input"),
-            nonce: fragment("EXCLUDED.nonce"),
-            r: fragment("EXCLUDED.r"),
-            s: fragment("EXCLUDED.s"),
-            status: fragment("EXCLUDED.status"),
-            to_address_hash: fragment("EXCLUDED.to_address_hash"),
-            v: fragment("EXCLUDED.v"),
-            value: fragment("EXCLUDED.value"),
-            earliest_processing_start: fragment("EXCLUDED.earliest_processing_start"),
-            revert_reason: fragment("EXCLUDED.revert_reason"),
-            max_priority_fee_per_gas: fragment("EXCLUDED.max_priority_fee_per_gas"),
-            max_fee_per_gas: fragment("EXCLUDED.max_fee_per_gas"),
-            type: fragment("EXCLUDED.type"),
-            # Don't update `hash` as it is part of the primary key and used for the conflict target
-            inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", transaction.inserted_at),
-            updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", transaction.updated_at)
-          ]
-        ],
-        where:
-          fragment(
-            "(EXCLUDED.block_hash, EXCLUDED.block_number, EXCLUDED.block_consensus, EXCLUDED.block_timestamp, EXCLUDED.created_contract_address_hash, EXCLUDED.created_contract_code_indexed_at, EXCLUDED.cumulative_gas_used, EXCLUDED.from_address_hash, EXCLUDED.gas, EXCLUDED.gas_price, EXCLUDED.gas_used, EXCLUDED.index, EXCLUDED.input, EXCLUDED.nonce, EXCLUDED.r, EXCLUDED.s, EXCLUDED.status, EXCLUDED.to_address_hash, EXCLUDED.v, EXCLUDED.value, EXCLUDED.earliest_processing_start, EXCLUDED.revert_reason, EXCLUDED.max_priority_fee_per_gas, EXCLUDED.max_fee_per_gas, EXCLUDED.type) IS DISTINCT FROM (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
-            transaction.block_hash,
-            transaction.block_number,
-            transaction.block_consensus,
-            transaction.block_timestamp,
-            transaction.created_contract_address_hash,
-            transaction.created_contract_code_indexed_at,
-            transaction.cumulative_gas_used,
-            transaction.from_address_hash,
-            transaction.gas,
-            transaction.gas_price,
-            transaction.gas_used,
-            transaction.index,
-            transaction.input,
-            transaction.nonce,
-            transaction.r,
-            transaction.s,
-            transaction.status,
-            transaction.to_address_hash,
-            transaction.v,
-            transaction.value,
-            transaction.earliest_processing_start,
-            transaction.revert_reason,
-            transaction.max_priority_fee_per_gas,
-            transaction.max_fee_per_gas,
-            transaction.type
-          )
-      )
+    case Application.get_env(:explorer, :chain_type) do
+      "suave" ->
+        from(
+          transaction in Transaction,
+          update: [
+            set: [
+              block_hash: fragment("EXCLUDED.block_hash"),
+              old_block_hash: transaction.block_hash,
+              block_number: fragment("EXCLUDED.block_number"),
+              block_consensus: fragment("EXCLUDED.block_consensus"),
+              block_timestamp: fragment("EXCLUDED.block_timestamp"),
+              created_contract_address_hash: fragment("EXCLUDED.created_contract_address_hash"),
+              created_contract_code_indexed_at: fragment("EXCLUDED.created_contract_code_indexed_at"),
+              cumulative_gas_used: fragment("EXCLUDED.cumulative_gas_used"),
+              error: fragment("EXCLUDED.error"),
+              from_address_hash: fragment("EXCLUDED.from_address_hash"),
+              gas: fragment("EXCLUDED.gas"),
+              gas_price: fragment("EXCLUDED.gas_price"),
+              gas_used: fragment("EXCLUDED.gas_used"),
+              index: fragment("EXCLUDED.index"),
+              input: fragment("EXCLUDED.input"),
+              nonce: fragment("EXCLUDED.nonce"),
+              r: fragment("EXCLUDED.r"),
+              s: fragment("EXCLUDED.s"),
+              status: fragment("EXCLUDED.status"),
+              to_address_hash: fragment("EXCLUDED.to_address_hash"),
+              v: fragment("EXCLUDED.v"),
+              value: fragment("EXCLUDED.value"),
+              earliest_processing_start: fragment("EXCLUDED.earliest_processing_start"),
+              revert_reason: fragment("EXCLUDED.revert_reason"),
+              max_priority_fee_per_gas: fragment("EXCLUDED.max_priority_fee_per_gas"),
+              max_fee_per_gas: fragment("EXCLUDED.max_fee_per_gas"),
+              type: fragment("EXCLUDED.type"),
+              execution_node_hash: fragment("EXCLUDED.execution_node_hash"),
+              wrapped_type: fragment("EXCLUDED.wrapped_type"),
+              wrapped_nonce: fragment("EXCLUDED.wrapped_nonce"),
+              wrapped_to_address_hash: fragment("EXCLUDED.wrapped_to_address_hash"),
+              wrapped_gas: fragment("EXCLUDED.wrapped_gas"),
+              wrapped_gas_price: fragment("EXCLUDED.wrapped_gas_price"),
+              wrapped_max_priority_fee_per_gas: fragment("EXCLUDED.wrapped_max_priority_fee_per_gas"),
+              wrapped_max_fee_per_gas: fragment("EXCLUDED.wrapped_max_fee_per_gas"),
+              wrapped_value: fragment("EXCLUDED.wrapped_value"),
+              wrapped_input: fragment("EXCLUDED.wrapped_input"),
+              wrapped_v: fragment("EXCLUDED.wrapped_v"),
+              wrapped_r: fragment("EXCLUDED.wrapped_r"),
+              wrapped_s: fragment("EXCLUDED.wrapped_s"),
+              wrapped_hash: fragment("EXCLUDED.wrapped_hash"),
+              # Don't update `hash` as it is part of the primary key and used for the conflict target
+              inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", transaction.inserted_at),
+              updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", transaction.updated_at)
+            ]
+          ],
+          where:
+            fragment(
+              "(EXCLUDED.block_hash, EXCLUDED.block_number, EXCLUDED.block_consensus, EXCLUDED.block_timestamp, EXCLUDED.created_contract_address_hash, EXCLUDED.created_contract_code_indexed_at, EXCLUDED.cumulative_gas_used, EXCLUDED.from_address_hash, EXCLUDED.gas, EXCLUDED.gas_price, EXCLUDED.gas_used, EXCLUDED.index, EXCLUDED.input, EXCLUDED.nonce, EXCLUDED.r, EXCLUDED.s, EXCLUDED.status, EXCLUDED.to_address_hash, EXCLUDED.v, EXCLUDED.value, EXCLUDED.earliest_processing_start, EXCLUDED.revert_reason, EXCLUDED.max_priority_fee_per_gas, EXCLUDED.max_fee_per_gas, EXCLUDED.type, EXCLUDED.execution_node_hash, EXCLUDED.wrapped_type, EXCLUDED.wrapped_nonce, EXCLUDED.wrapped_to_address_hash, EXCLUDED.wrapped_gas, EXCLUDED.wrapped_gas_price, EXCLUDED.wrapped_max_priority_fee_per_gas, EXCLUDED.wrapped_max_fee_per_gas, EXCLUDED.wrapped_value, EXCLUDED.wrapped_input, EXCLUDED.wrapped_v, EXCLUDED.wrapped_r, EXCLUDED.wrapped_s, EXCLUDED.wrapped_hash) IS DISTINCT FROM (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+              transaction.block_hash,
+              transaction.block_number,
+              transaction.block_consensus,
+              transaction.block_timestamp,
+              transaction.created_contract_address_hash,
+              transaction.created_contract_code_indexed_at,
+              transaction.cumulative_gas_used,
+              transaction.from_address_hash,
+              transaction.gas,
+              transaction.gas_price,
+              transaction.gas_used,
+              transaction.index,
+              transaction.input,
+              transaction.nonce,
+              transaction.r,
+              transaction.s,
+              transaction.status,
+              transaction.to_address_hash,
+              transaction.v,
+              transaction.value,
+              transaction.earliest_processing_start,
+              transaction.revert_reason,
+              transaction.max_priority_fee_per_gas,
+              transaction.max_fee_per_gas,
+              transaction.type,
+              transaction.execution_node_hash,
+              transaction.wrapped_type,
+              transaction.wrapped_nonce,
+              transaction.wrapped_to_address_hash,
+              transaction.wrapped_gas,
+              transaction.wrapped_gas_price,
+              transaction.wrapped_max_priority_fee_per_gas,
+              transaction.wrapped_max_fee_per_gas,
+              transaction.wrapped_value,
+              transaction.wrapped_input,
+              transaction.wrapped_v,
+              transaction.wrapped_r,
+              transaction.wrapped_s,
+              transaction.wrapped_hash
+            )
+        )
+
+      "optimism" ->
+        from(
+          transaction in Transaction,
+          update: [
+            set: [
+              block_hash: fragment("EXCLUDED.block_hash"),
+              old_block_hash: transaction.block_hash,
+              block_number: fragment("EXCLUDED.block_number"),
+              block_consensus: fragment("EXCLUDED.block_consensus"),
+              block_timestamp: fragment("EXCLUDED.block_timestamp"),
+              created_contract_address_hash: fragment("EXCLUDED.created_contract_address_hash"),
+              created_contract_code_indexed_at: fragment("EXCLUDED.created_contract_code_indexed_at"),
+              cumulative_gas_used: fragment("EXCLUDED.cumulative_gas_used"),
+              error: fragment("EXCLUDED.error"),
+              from_address_hash: fragment("EXCLUDED.from_address_hash"),
+              gas: fragment("EXCLUDED.gas"),
+              gas_price: fragment("EXCLUDED.gas_price"),
+              gas_used: fragment("EXCLUDED.gas_used"),
+              index: fragment("EXCLUDED.index"),
+              input: fragment("EXCLUDED.input"),
+              nonce: fragment("EXCLUDED.nonce"),
+              r: fragment("EXCLUDED.r"),
+              s: fragment("EXCLUDED.s"),
+              status: fragment("EXCLUDED.status"),
+              to_address_hash: fragment("EXCLUDED.to_address_hash"),
+              v: fragment("EXCLUDED.v"),
+              value: fragment("EXCLUDED.value"),
+              earliest_processing_start: fragment("EXCLUDED.earliest_processing_start"),
+              revert_reason: fragment("EXCLUDED.revert_reason"),
+              max_priority_fee_per_gas: fragment("EXCLUDED.max_priority_fee_per_gas"),
+              max_fee_per_gas: fragment("EXCLUDED.max_fee_per_gas"),
+              type: fragment("EXCLUDED.type"),
+              l1_fee: fragment("EXCLUDED.l1_fee"),
+              l1_fee_scalar: fragment("EXCLUDED.l1_fee_scalar"),
+              l1_gas_price: fragment("EXCLUDED.l1_gas_price"),
+              l1_gas_used: fragment("EXCLUDED.l1_gas_used"),
+              l1_tx_origin: fragment("EXCLUDED.l1_tx_origin"),
+              l1_block_number: fragment("EXCLUDED.l1_block_number"),
+              # Don't update `hash` as it is part of the primary key and used for the conflict target
+              inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", transaction.inserted_at),
+              updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", transaction.updated_at)
+            ]
+          ],
+          where:
+            fragment(
+              "(EXCLUDED.block_hash, EXCLUDED.block_number, EXCLUDED.block_consensus, EXCLUDED.block_timestamp, EXCLUDED.created_contract_address_hash, EXCLUDED.created_contract_code_indexed_at, EXCLUDED.cumulative_gas_used, EXCLUDED.from_address_hash, EXCLUDED.gas, EXCLUDED.gas_price, EXCLUDED.gas_used, EXCLUDED.index, EXCLUDED.input, EXCLUDED.nonce, EXCLUDED.r, EXCLUDED.s, EXCLUDED.status, EXCLUDED.to_address_hash, EXCLUDED.v, EXCLUDED.value, EXCLUDED.earliest_processing_start, EXCLUDED.revert_reason, EXCLUDED.max_priority_fee_per_gas, EXCLUDED.max_fee_per_gas, EXCLUDED.type, EXCLUDED.l1_fee, EXCLUDED.l1_fee_scalar, EXCLUDED.l1_gas_price, EXCLUDED.l1_gas_used, EXCLUDED.l1_tx_origin, EXCLUDED.l1_block_number) IS DISTINCT FROM (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+              transaction.block_hash,
+              transaction.block_number,
+              transaction.block_consensus,
+              transaction.block_timestamp,
+              transaction.created_contract_address_hash,
+              transaction.created_contract_code_indexed_at,
+              transaction.cumulative_gas_used,
+              transaction.from_address_hash,
+              transaction.gas,
+              transaction.gas_price,
+              transaction.gas_used,
+              transaction.index,
+              transaction.input,
+              transaction.nonce,
+              transaction.r,
+              transaction.s,
+              transaction.status,
+              transaction.to_address_hash,
+              transaction.v,
+              transaction.value,
+              transaction.earliest_processing_start,
+              transaction.revert_reason,
+              transaction.max_priority_fee_per_gas,
+              transaction.max_fee_per_gas,
+              transaction.type,
+              transaction.l1_fee,
+              transaction.l1_fee_scalar,
+              transaction.l1_gas_price,
+              transaction.l1_gas_used,
+              transaction.l1_tx_origin,
+              transaction.l1_block_number
+            )
+        )
+
+      _ ->
+        from(
+          transaction in Transaction,
+          update: [
+            set: [
+              block_hash: fragment("EXCLUDED.block_hash"),
+              old_block_hash: transaction.block_hash,
+              block_number: fragment("EXCLUDED.block_number"),
+              block_consensus: fragment("EXCLUDED.block_consensus"),
+              block_timestamp: fragment("EXCLUDED.block_timestamp"),
+              created_contract_address_hash: fragment("EXCLUDED.created_contract_address_hash"),
+              created_contract_code_indexed_at: fragment("EXCLUDED.created_contract_code_indexed_at"),
+              cumulative_gas_used: fragment("EXCLUDED.cumulative_gas_used"),
+              error: fragment("EXCLUDED.error"),
+              from_address_hash: fragment("EXCLUDED.from_address_hash"),
+              gas: fragment("EXCLUDED.gas"),
+              gas_price: fragment("EXCLUDED.gas_price"),
+              gas_used: fragment("EXCLUDED.gas_used"),
+              index: fragment("EXCLUDED.index"),
+              input: fragment("EXCLUDED.input"),
+              nonce: fragment("EXCLUDED.nonce"),
+              r: fragment("EXCLUDED.r"),
+              s: fragment("EXCLUDED.s"),
+              status: fragment("EXCLUDED.status"),
+              to_address_hash: fragment("EXCLUDED.to_address_hash"),
+              v: fragment("EXCLUDED.v"),
+              value: fragment("EXCLUDED.value"),
+              earliest_processing_start: fragment("EXCLUDED.earliest_processing_start"),
+              revert_reason: fragment("EXCLUDED.revert_reason"),
+              max_priority_fee_per_gas: fragment("EXCLUDED.max_priority_fee_per_gas"),
+              max_fee_per_gas: fragment("EXCLUDED.max_fee_per_gas"),
+              type: fragment("EXCLUDED.type"),
+              # Don't update `hash` as it is part of the primary key and used for the conflict target
+              inserted_at: fragment("LEAST(?, EXCLUDED.inserted_at)", transaction.inserted_at),
+              updated_at: fragment("GREATEST(?, EXCLUDED.updated_at)", transaction.updated_at)
+            ]
+          ],
+          where:
+            fragment(
+              "(EXCLUDED.block_hash, EXCLUDED.block_number, EXCLUDED.block_consensus, EXCLUDED.block_timestamp, EXCLUDED.created_contract_address_hash, EXCLUDED.created_contract_code_indexed_at, EXCLUDED.cumulative_gas_used, EXCLUDED.from_address_hash, EXCLUDED.gas, EXCLUDED.gas_price, EXCLUDED.gas_used, EXCLUDED.index, EXCLUDED.input, EXCLUDED.nonce, EXCLUDED.r, EXCLUDED.s, EXCLUDED.status, EXCLUDED.to_address_hash, EXCLUDED.v, EXCLUDED.value, EXCLUDED.earliest_processing_start, EXCLUDED.revert_reason, EXCLUDED.max_priority_fee_per_gas, EXCLUDED.max_fee_per_gas, EXCLUDED.type) IS DISTINCT FROM (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+              transaction.block_hash,
+              transaction.block_number,
+              transaction.block_consensus,
+              transaction.block_timestamp,
+              transaction.created_contract_address_hash,
+              transaction.created_contract_code_indexed_at,
+              transaction.cumulative_gas_used,
+              transaction.from_address_hash,
+              transaction.gas,
+              transaction.gas_price,
+              transaction.gas_used,
+              transaction.index,
+              transaction.input,
+              transaction.nonce,
+              transaction.r,
+              transaction.s,
+              transaction.status,
+              transaction.to_address_hash,
+              transaction.v,
+              transaction.value,
+              transaction.earliest_processing_start,
+              transaction.revert_reason,
+              transaction.max_priority_fee_per_gas,
+              transaction.max_fee_per_gas,
+              transaction.type
+            )
+        )
     end
   end
 
diff --git a/apps/explorer/lib/explorer/chain/import/stage/block_referencing.ex b/apps/explorer/lib/explorer/chain/import/stage/block_referencing.ex
index 9a6c682247..da6b01fd4d 100644
--- a/apps/explorer/lib/explorer/chain/import/stage/block_referencing.ex
+++ b/apps/explorer/lib/explorer/chain/import/stage/block_referencing.ex
@@ -19,6 +19,15 @@ defmodule Explorer.Chain.Import.Stage.BlockReferencing do
     Runner.Withdrawals
   ]
 
+  @optimism_runners [
+    Runner.Optimism.FrameSequences,
+    Runner.Optimism.TxnBatches,
+    Runner.Optimism.OutputRoots,
+    Runner.Optimism.Deposits,
+    Runner.Optimism.Withdrawals,
+    Runner.Optimism.WithdrawalEvents
+  ]
+
   @polygon_edge_runners [
     Runner.PolygonEdge.Deposits,
     Runner.PolygonEdge.DepositExecutes,
@@ -44,7 +53,10 @@ defmodule Explorer.Chain.Import.Stage.BlockReferencing do
 
   @impl Stage
   def runners do
-    case System.get_env("CHAIN_TYPE") do
+    case Application.get_env(:explorer, :chain_type) do
+      "optimism" ->
+        @default_runners ++ @optimism_runners
+
       "polygon_edge" ->
         @default_runners ++ @polygon_edge_runners
 
@@ -64,7 +76,7 @@ defmodule Explorer.Chain.Import.Stage.BlockReferencing do
 
   @impl Stage
   def all_runners do
-    @default_runners ++ @polygon_edge_runners ++ @polygon_zkevm_runners ++ @shibarium_runners
+    @default_runners ++ @optimism_runners ++ @polygon_edge_runners ++ @polygon_zkevm_runners ++ @shibarium_runners
   end
 
   @impl Stage
diff --git a/apps/explorer/lib/explorer/chain/optimism/deposit.ex b/apps/explorer/lib/explorer/chain/optimism/deposit.ex
new file mode 100644
index 0000000000..7bf87b6198
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/optimism/deposit.ex
@@ -0,0 +1,86 @@
+defmodule Explorer.Chain.Optimism.Deposit do
+  @moduledoc "Models a deposit for Optimism."
+
+  use Explorer.Schema
+
+  import Explorer.Chain, only: [join_association: 3, select_repo: 1]
+
+  alias Explorer.Chain.{Hash, Transaction}
+  alias Explorer.PagingOptions
+
+  @default_paging_options %PagingOptions{page_size: 50}
+
+  @required_attrs ~w(l1_block_number l1_transaction_hash l1_transaction_origin l2_transaction_hash)a
+  @optional_attrs ~w(l1_block_timestamp)a
+  @allowed_attrs @required_attrs ++ @optional_attrs
+
+  @type t :: %__MODULE__{
+          l1_block_number: non_neg_integer(),
+          l1_block_timestamp: DateTime.t(),
+          l1_transaction_hash: Hash.t(),
+          l1_transaction_origin: Hash.t(),
+          l2_transaction_hash: Hash.t(),
+          l2_transaction: %Ecto.Association.NotLoaded{} | Transaction.t()
+        }
+
+  @primary_key false
+  schema "op_deposits" do
+    field(:l1_block_number, :integer)
+    field(:l1_block_timestamp, :utc_datetime_usec)
+    field(:l1_transaction_hash, Hash.Full)
+    field(:l1_transaction_origin, Hash.Address)
+
+    belongs_to(:l2_transaction, Transaction,
+      foreign_key: :l2_transaction_hash,
+      primary_key: true,
+      references: :hash,
+      type: Hash.Full
+    )
+
+    timestamps()
+  end
+
+  def changeset(%__MODULE__{} = deposit, attrs \\ %{}) do
+    deposit
+    |> cast(attrs, @allowed_attrs)
+    |> validate_required(@required_attrs)
+    |> foreign_key_constraint(:l2_transaction_hash)
+  end
+
+  def last_deposit_l1_block_number_query do
+    from(d in __MODULE__,
+      select: {d.l1_block_number, d.l1_transaction_hash},
+      order_by: [desc: d.l1_block_number],
+      limit: 1
+    )
+  end
+
+  @doc """
+  Lists `t:Explorer.Chain.Optimism.Deposit.t/0`'s' in descending order based on l1_block_number and l2_transaction_hash.
+
+  """
+  @spec list :: [__MODULE__.t()]
+  def list(options \\ []) do
+    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
+
+    base_query =
+      from(d in __MODULE__,
+        order_by: [desc: d.l1_block_number, desc: d.l2_transaction_hash]
+      )
+
+    base_query
+    |> join_association(:l2_transaction, :required)
+    |> page_deposits(paging_options)
+    |> limit(^paging_options.page_size)
+    |> select_repo(options).all()
+  end
+
+  defp page_deposits(query, %PagingOptions{key: nil}), do: query
+
+  defp page_deposits(query, %PagingOptions{key: {block_number, l2_tx_hash}}) do
+    from(d in query,
+      where: d.l1_block_number < ^block_number,
+      or_where: d.l1_block_number == ^block_number and d.l2_transaction_hash < ^l2_tx_hash
+    )
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/optimism/frame_sequence.ex b/apps/explorer/lib/explorer/chain/optimism/frame_sequence.ex
new file mode 100644
index 0000000000..49aceda7a4
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/optimism/frame_sequence.ex
@@ -0,0 +1,33 @@
+defmodule Explorer.Chain.Optimism.FrameSequence do
+  @moduledoc "Models a frame sequence for Optimism."
+
+  use Explorer.Schema
+
+  alias Explorer.Chain.Hash
+  alias Explorer.Chain.Optimism.TxnBatch
+
+  @required_attrs ~w(id l1_transaction_hashes l1_timestamp)a
+
+  @type t :: %__MODULE__{
+          l1_transaction_hashes: [Hash.t()],
+          l1_timestamp: DateTime.t(),
+          transaction_batches: %Ecto.Association.NotLoaded{} | [TxnBatch.t()]
+        }
+
+  @primary_key {:id, :integer, autogenerate: false}
+  schema "op_frame_sequences" do
+    field(:l1_transaction_hashes, {:array, Hash.Full})
+    field(:l1_timestamp, :utc_datetime_usec)
+
+    has_many(:transaction_batches, TxnBatch, foreign_key: :frame_sequence_id)
+
+    timestamps()
+  end
+
+  def changeset(%__MODULE__{} = sequences, attrs \\ %{}) do
+    sequences
+    |> cast(attrs, @required_attrs)
+    |> validate_required(@required_attrs)
+    |> unique_constraint(:id)
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/optimism/output_root.ex b/apps/explorer/lib/explorer/chain/optimism/output_root.ex
new file mode 100644
index 0000000000..99f69edb25
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/optimism/output_root.ex
@@ -0,0 +1,67 @@
+defmodule Explorer.Chain.Optimism.OutputRoot do
+  @moduledoc "Models an output root for Optimism."
+
+  use Explorer.Schema
+
+  import Explorer.Chain, only: [select_repo: 1]
+
+  alias Explorer.Chain.Hash
+  alias Explorer.PagingOptions
+
+  @default_paging_options %PagingOptions{page_size: 50}
+
+  @required_attrs ~w(l2_output_index l2_block_number l1_transaction_hash l1_timestamp l1_block_number output_root)a
+
+  @type t :: %__MODULE__{
+          l2_output_index: non_neg_integer(),
+          l2_block_number: non_neg_integer(),
+          l1_transaction_hash: Hash.t(),
+          l1_timestamp: DateTime.t(),
+          l1_block_number: non_neg_integer(),
+          output_root: Hash.t()
+        }
+
+  @primary_key false
+  schema "op_output_roots" do
+    field(:l2_output_index, :integer, primary_key: true)
+    field(:l2_block_number, :integer)
+    field(:l1_transaction_hash, Hash.Full)
+    field(:l1_timestamp, :utc_datetime_usec)
+    field(:l1_block_number, :integer)
+    field(:output_root, Hash.Full)
+
+    timestamps()
+  end
+
+  def changeset(%__MODULE__{} = output_roots, attrs \\ %{}) do
+    output_roots
+    |> cast(attrs, @required_attrs)
+    |> validate_required(@required_attrs)
+  end
+
+  @doc """
+  Lists `t:Explorer.Chain.Optimism.OutputRoot.t/0`'s' in descending order based on output root index.
+
+  """
+  @spec list :: [__MODULE__.t()]
+  def list(options \\ []) do
+    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
+
+    base_query =
+      from(r in __MODULE__,
+        order_by: [desc: r.l2_output_index],
+        select: r
+      )
+
+    base_query
+    |> page_output_roots(paging_options)
+    |> limit(^paging_options.page_size)
+    |> select_repo(options).all()
+  end
+
+  defp page_output_roots(query, %PagingOptions{key: nil}), do: query
+
+  defp page_output_roots(query, %PagingOptions{key: {index}}) do
+    from(r in query, where: r.l2_output_index < ^index)
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/optimism/txn_batch.ex b/apps/explorer/lib/explorer/chain/optimism/txn_batch.ex
new file mode 100644
index 0000000000..fea454afd3
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/optimism/txn_batch.ex
@@ -0,0 +1,61 @@
+defmodule Explorer.Chain.Optimism.TxnBatch do
+  @moduledoc "Models a batch of transactions for Optimism."
+
+  use Explorer.Schema
+
+  import Explorer.Chain, only: [join_association: 3, select_repo: 1]
+
+  alias Explorer.Chain.Optimism.FrameSequence
+  alias Explorer.PagingOptions
+
+  @default_paging_options %PagingOptions{page_size: 50}
+
+  @required_attrs ~w(l2_block_number frame_sequence_id)a
+
+  @type t :: %__MODULE__{
+          l2_block_number: non_neg_integer(),
+          frame_sequence_id: non_neg_integer(),
+          frame_sequence: %Ecto.Association.NotLoaded{} | FrameSequence.t()
+        }
+
+  @primary_key false
+  schema "op_transaction_batches" do
+    field(:l2_block_number, :integer, primary_key: true)
+    belongs_to(:frame_sequence, FrameSequence, foreign_key: :frame_sequence_id, references: :id, type: :integer)
+
+    timestamps()
+  end
+
+  def changeset(%__MODULE__{} = batches, attrs \\ %{}) do
+    batches
+    |> cast(attrs, @required_attrs)
+    |> validate_required(@required_attrs)
+    |> foreign_key_constraint(:frame_sequence_id)
+  end
+
+  @doc """
+  Lists `t:Explorer.Chain.Optimism.TxnBatch.t/0`'s' in descending order based on l2_block_number.
+
+  """
+  @spec list :: [__MODULE__.t()]
+  def list(options \\ []) do
+    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
+
+    base_query =
+      from(tb in __MODULE__,
+        order_by: [desc: tb.l2_block_number]
+      )
+
+    base_query
+    |> join_association(:frame_sequence, :required)
+    |> page_txn_batches(paging_options)
+    |> limit(^paging_options.page_size)
+    |> select_repo(options).all()
+  end
+
+  defp page_txn_batches(query, %PagingOptions{key: nil}), do: query
+
+  defp page_txn_batches(query, %PagingOptions{key: {block_number}}) do
+    from(tb in query, where: tb.l2_block_number < ^block_number)
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/optimism/withdrawal.ex b/apps/explorer/lib/explorer/chain/optimism/withdrawal.ex
new file mode 100644
index 0000000000..af7c062a47
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/optimism/withdrawal.ex
@@ -0,0 +1,163 @@
+defmodule Explorer.Chain.Optimism.Withdrawal do
+  @moduledoc "Models Optimism withdrawal."
+
+  use Explorer.Schema
+
+  import Explorer.Chain, only: [select_repo: 1]
+
+  alias Explorer.Chain.{Block, Hash, Transaction}
+  alias Explorer.Chain.Cache.OptimismFinalizationPeriod
+  alias Explorer.Chain.Optimism.{OutputRoot, WithdrawalEvent}
+  alias Explorer.{PagingOptions, Repo}
+
+  @default_paging_options %PagingOptions{page_size: 50}
+
+  @required_attrs ~w(msg_nonce hash l2_transaction_hash l2_block_number)a
+
+  @type t :: %__MODULE__{
+          msg_nonce: Decimal.t(),
+          hash: Hash.t(),
+          l2_transaction_hash: Hash.t(),
+          l2_block_number: non_neg_integer()
+        }
+
+  @primary_key false
+  schema "op_withdrawals" do
+    field(:msg_nonce, :decimal, primary_key: true)
+    field(:hash, Hash.Full)
+    field(:l2_transaction_hash, Hash.Full)
+    field(:l2_block_number, :integer)
+
+    timestamps()
+  end
+
+  def changeset(%__MODULE__{} = withdrawals, attrs \\ %{}) do
+    withdrawals
+    |> cast(attrs, @required_attrs)
+    |> validate_required(@required_attrs)
+  end
+
+  @doc """
+  Lists `t:Explorer.Chain.Optimism.Withdrawal.t/0`'s' in descending order based on message nonce.
+
+  """
+  @spec list :: [__MODULE__.t()]
+  def list(options \\ []) do
+    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
+
+    base_query =
+      from(w in __MODULE__,
+        order_by: [desc: w.msg_nonce],
+        left_join: l2_tx in Transaction,
+        on: w.l2_transaction_hash == l2_tx.hash,
+        left_join: l2_block in Block,
+        on: w.l2_block_number == l2_block.number,
+        left_join: we in WithdrawalEvent,
+        on: we.withdrawal_hash == w.hash and we.l1_event_type == :WithdrawalFinalized,
+        select: %{
+          msg_nonce: w.msg_nonce,
+          hash: w.hash,
+          l2_block_number: w.l2_block_number,
+          l2_timestamp: l2_block.timestamp,
+          l2_transaction_hash: w.l2_transaction_hash,
+          l1_transaction_hash: we.l1_transaction_hash,
+          from: l2_tx.from_address_hash
+        }
+      )
+
+    base_query
+    |> page_optimism_withdrawals(paging_options)
+    |> limit(^paging_options.page_size)
+    |> select_repo(options).all()
+  end
+
+  defp page_optimism_withdrawals(query, %PagingOptions{key: nil}), do: query
+
+  defp page_optimism_withdrawals(query, %PagingOptions{key: {nonce}}) do
+    from(w in query, where: w.msg_nonce < ^nonce)
+  end
+
+  @doc """
+    Gets withdrawal statuses for Optimism Withdrawal transaction.
+    For each withdrawal associated with this transaction,
+    returns the status and the corresponding L1 transaction hash if the status is `Relayed`.
+  """
+  @spec transaction_statuses(Hash.t()) :: [{non_neg_integer(), String.t(), Hash.t() | nil}]
+  def transaction_statuses(l2_transaction_hash) do
+    query =
+      from(w in __MODULE__,
+        where: w.l2_transaction_hash == ^l2_transaction_hash,
+        left_join: l2_block in Block,
+        on: w.l2_block_number == l2_block.number and l2_block.consensus == true,
+        left_join: we in WithdrawalEvent,
+        on: we.withdrawal_hash == w.hash and we.l1_event_type == :WithdrawalFinalized,
+        select: %{
+          hash: w.hash,
+          l2_block_number: w.l2_block_number,
+          l1_transaction_hash: we.l1_transaction_hash,
+          msg_nonce: w.msg_nonce
+        }
+      )
+
+    query
+    |> Repo.replica().all()
+    |> Enum.map(fn w ->
+      msg_nonce =
+        Bitwise.band(
+          Decimal.to_integer(w.msg_nonce),
+          0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
+        )
+
+      {status, _} = status(w)
+      {msg_nonce, status, w.l1_transaction_hash}
+    end)
+  end
+
+  @doc """
+    Gets Optimism Withdrawal status and remaining time to unlock (when the status is `In challenge period`).
+  """
+  @spec status(map()) :: {String.t(), DateTime.t() | nil}
+  def status(w) when is_nil(w.l1_transaction_hash) do
+    l1_timestamp =
+      Repo.replica().one(
+        from(
+          we in WithdrawalEvent,
+          select: we.l1_timestamp,
+          where: we.withdrawal_hash == ^w.hash and we.l1_event_type == :WithdrawalProven
+        )
+      )
+
+    if is_nil(l1_timestamp) do
+      last_root_l2_block_number =
+        Repo.replica().one(
+          from(root in OutputRoot,
+            select: root.l2_block_number,
+            order_by: [desc: root.l2_output_index],
+            limit: 1
+          )
+        ) || 0
+
+      if w.l2_block_number > last_root_l2_block_number do
+        {"Waiting for state root", nil}
+      else
+        {"Ready to prove", nil}
+      end
+    else
+      challenge_period =
+        case OptimismFinalizationPeriod.get_period() do
+          nil -> 604_800
+          period -> period
+        end
+
+      if DateTime.compare(l1_timestamp, DateTime.add(DateTime.utc_now(), -challenge_period, :second)) == :lt do
+        {"Ready for relay", nil}
+      else
+        {"In challenge period", DateTime.add(l1_timestamp, challenge_period, :second)}
+      end
+    end
+  end
+
+  def status(_w) do
+    {"Relayed", nil}
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/optimism/withdrawal_event.ex b/apps/explorer/lib/explorer/chain/optimism/withdrawal_event.ex
new file mode 100644
index 0000000000..3cdecc12cb
--- /dev/null
+++ b/apps/explorer/lib/explorer/chain/optimism/withdrawal_event.ex
@@ -0,0 +1,34 @@
+defmodule Explorer.Chain.Optimism.WithdrawalEvent do
+  @moduledoc "Models Optimism withdrawal event."
+
+  use Explorer.Schema
+
+  alias Explorer.Chain.Hash
+
+  @required_attrs ~w(withdrawal_hash l1_event_type l1_timestamp l1_transaction_hash l1_block_number)a
+
+  @type t :: %__MODULE__{
+          withdrawal_hash: Hash.t(),
+          l1_event_type: String.t(),
+          l1_timestamp: DateTime.t(),
+          l1_transaction_hash: Hash.t(),
+          l1_block_number: non_neg_integer()
+        }
+
+  @primary_key false
+  schema "op_withdrawal_events" do
+    field(:withdrawal_hash, Hash.Full, primary_key: true)
+    field(:l1_event_type, Ecto.Enum, values: [:WithdrawalProven, :WithdrawalFinalized], primary_key: true)
+    field(:l1_timestamp, :utc_datetime_usec)
+    field(:l1_transaction_hash, Hash.Full)
+    field(:l1_block_number, :integer)
+
+    timestamps()
+  end
+
+  def changeset(%__MODULE__{} = withdrawal_events, attrs \\ %{}) do
+    withdrawal_events
+    |> cast(attrs, @required_attrs)
+    |> validate_required(@required_attrs)
+  end
+end
diff --git a/apps/explorer/lib/explorer/chain/transaction.ex b/apps/explorer/lib/explorer/chain/transaction.ex
index 752b7e56d7..cbd4e261ad 100644
--- a/apps/explorer/lib/explorer/chain/transaction.ex
+++ b/apps/explorer/lib/explorer/chain/transaction.ex
@@ -26,6 +26,19 @@ defmodule Explorer.Chain.Transaction.Schema do
                             ]
                           end
 
+                        "optimism" ->
+                          elem(
+                            quote do
+                              field(:l1_fee, Wei)
+                              field(:l1_fee_scalar, :decimal)
+                              field(:l1_gas_price, Wei)
+                              field(:l1_gas_used, :decimal)
+                              field(:l1_tx_origin, Hash.Full)
+                              field(:l1_block_number, :integer)
+                            end,
+                            2
+                          )
+
                         "suave" ->
                           elem(
                             quote do
@@ -202,8 +215,10 @@ defmodule Explorer.Chain.Transaction do
   alias Explorer.SmartContract.SigProviderInterface
 
   @optional_attrs ~w(max_priority_fee_per_gas max_fee_per_gas block_hash block_number block_consensus block_timestamp created_contract_address_hash cumulative_gas_used earliest_processing_start
-                     error gas_price gas_used index created_contract_code_indexed_at status to_address_hash revert_reason type has_error_in_internal_txs)a
+                     error gas_price gas_used index created_contract_code_indexed_at status
+                     to_address_hash revert_reason type has_error_in_internal_txs)a
 
+  @optimism_optional_attrs ~w(l1_fee l1_fee_scalar l1_gas_price l1_gas_used l1_tx_origin l1_block_number)a
   @suave_optional_attrs ~w(execution_node_hash wrapped_type wrapped_nonce wrapped_to_address_hash wrapped_gas wrapped_gas_price wrapped_max_priority_fee_per_gas wrapped_max_fee_per_gas wrapped_value wrapped_input wrapped_v wrapped_r wrapped_s wrapped_hash)a
 
   @required_attrs ~w(from_address_hash gas hash input nonce r s v value)a
@@ -527,7 +542,7 @@ defmodule Explorer.Chain.Transaction do
     attrs_to_cast =
       @required_attrs ++
         @optional_attrs ++
-        if Application.get_env(:explorer, :chain_type) == "suave", do: @suave_optional_attrs, else: @empty_attrs
+        custom_optional_attrs()
 
     transaction
     |> cast(attrs, attrs_to_cast)
@@ -542,6 +557,14 @@ defmodule Explorer.Chain.Transaction do
     |> unique_constraint(:hash)
   end
 
+  defp custom_optional_attrs do
+    case Application.get_env(:explorer, :chain_type) do
+      "suave" -> @suave_optional_attrs
+      "optimism" -> @optimism_optional_attrs
+      _ -> @empty_attrs
+    end
+  end
+
   @spec block_timestamp(t()) :: DateTime.t()
   def block_timestamp(%{block_number: nil, inserted_at: time}), do: time
   def block_timestamp(%{block_timestamp: time}) when not is_nil(time), do: time
@@ -1740,38 +1763,43 @@ defmodule Explorer.Chain.Transaction do
 
   """
   @spec fee(Transaction.t(), :ether | :gwei | :wei) :: {:maximum, Decimal.t()} | {:actual, Decimal.t() | nil}
-  def fee(%Transaction{gas: gas, gas_price: nil, gas_used: nil} = transaction, unit) do
-    gas_price = effective_gas_price(transaction)
+  def fee(%Transaction{gas: _gas, gas_price: nil, gas_used: nil}, _unit), do: {:maximum, nil}
 
-    {:maximum, gas_price && gas_price |> Wei.to(unit) |> Decimal.mult(gas)}
+  def fee(%Transaction{gas: gas, gas_price: gas_price, gas_used: nil} = tx, unit) do
+    {:maximum, fee(tx, gas_price, gas, unit)}
   end
 
-  def fee(%Transaction{gas: gas, gas_price: gas_price, gas_used: nil}, unit) do
-    fee =
-      gas_price
-      |> Wei.to(unit)
-      |> Decimal.mult(gas)
+  def fee(%Transaction{gas_price: nil, gas_used: gas_used} = transaction, unit) do
+    if Application.get_env(:explorer, :chain_type) == "optimism" do
+      {:actual, nil}
+    else
+      gas_price = effective_gas_price(transaction)
 
-    {:maximum, fee}
+      {:actual,
+       gas_price &&
+         gas_price
+         |> Wei.to(unit)
+         |> Decimal.mult(gas_used)}
+    end
   end
 
-  def fee(%Transaction{gas_price: nil, gas_used: gas_used} = transaction, unit) do
-    gas_price = effective_gas_price(transaction)
-
-    {:actual,
-     gas_price &&
-       gas_price
-       |> Wei.to(unit)
-       |> Decimal.mult(gas_used)}
+  def fee(%Transaction{gas_price: gas_price, gas_used: gas_used} = tx, unit) do
+    {:actual, fee(tx, gas_price, gas_used, unit)}
   end
 
-  def fee(%Transaction{gas_price: gas_price, gas_used: gas_used}, unit) do
-    fee =
-      gas_price
-      |> Wei.to(unit)
-      |> Decimal.mult(gas_used)
+  defp fee(tx, gas_price, gas, unit) do
+    l1_fee =
+      case Map.get(tx, :l1_fee) do
+        nil -> Wei.from(Decimal.new(0), :wei)
+        value -> value
+      end
 
-    {:actual, fee}
+    gas_price
+    |> Wei.to(unit)
+    |> Decimal.mult(gas)
+    |> Wei.from(unit)
+    |> Wei.sum(l1_fee)
+    |> Wei.to(unit)
   end
 
   @doc """
diff --git a/apps/explorer/lib/explorer/helper.ex b/apps/explorer/lib/explorer/helper.ex
index a3161b4b46..a8791eb365 100644
--- a/apps/explorer/lib/explorer/helper.ex
+++ b/apps/explorer/lib/explorer/helper.ex
@@ -1,6 +1,6 @@
 defmodule Explorer.Helper do
   @moduledoc """
-  Common explorer helper
+  Auxiliary common functions.
   """
 
   alias ABI.TypeDecoder
@@ -30,16 +30,19 @@ defmodule Explorer.Helper do
     |> TypeDecoder.decode_raw(types)
   end
 
-  @spec parse_integer(binary() | nil) :: integer() | nil
-  def parse_integer(nil), do: nil
-
-  def parse_integer(string) do
-    case Integer.parse(string) do
-      {number, ""} -> number
+  def parse_integer(integer_string) when is_binary(integer_string) do
+    case Integer.parse(integer_string) do
+      {integer, ""} -> integer
       _ -> nil
     end
   end
 
+  def parse_integer(value) when is_integer(value) do
+    value
+  end
+
+  def parse_integer(_integer_string), do: nil
+
   @doc """
   Parses number from hex string or decimal number string
   """
diff --git a/apps/explorer/lib/explorer/repo.ex b/apps/explorer/lib/explorer/repo.ex
index 3bf981b319..2e457379d8 100644
--- a/apps/explorer/lib/explorer/repo.ex
+++ b/apps/explorer/lib/explorer/repo.ex
@@ -151,6 +151,16 @@ defmodule Explorer.Repo do
     end
   end
 
+  defmodule Optimism do
+    use Ecto.Repo,
+      otp_app: :explorer,
+      adapter: Ecto.Adapters.Postgres
+
+    def init(_, opts) do
+      ConfigHelper.init_repo_module(__MODULE__, opts)
+    end
+  end
+
   defmodule PolygonEdge do
     use Ecto.Repo,
       otp_app: :explorer,
diff --git a/apps/explorer/priv/optimism/migrations/20220204060243_transaction_columns_to_support_l2.exs b/apps/explorer/priv/optimism/migrations/20220204060243_transaction_columns_to_support_l2.exs
new file mode 100644
index 0000000000..36a7902cfd
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20220204060243_transaction_columns_to_support_l2.exs
@@ -0,0 +1,14 @@
+defmodule Explorer.Repo.Migrations.TransactionColumnsToSupportL2 do
+  use Ecto.Migration
+
+  def change do
+    alter table(:transactions) do
+      add(:l1_fee, :numeric, precision: 100, null: true)
+      add(:l1_fee_scalar, :decimal, null: true)
+      add(:l1_gas_price, :numeric, precision: 100, null: true)
+      add(:l1_gas_used, :numeric, precision: 100, null: true)
+      add(:l1_tx_origin, :bytea, null: true)
+      add(:l1_block_number, :integer, null: true)
+    end
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230131115105_add_op_output_roots_table.exs b/apps/explorer/priv/optimism/migrations/20230131115105_add_op_output_roots_table.exs
new file mode 100644
index 0000000000..da07e936ee
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230131115105_add_op_output_roots_table.exs
@@ -0,0 +1,16 @@
+defmodule Explorer.Repo.Migrations.AddOpOutputRootsTable do
+  use Ecto.Migration
+
+  def change do
+    create table(:op_output_roots, primary_key: false) do
+      add(:l2_output_index, :bigint, null: false, primary_key: true)
+      add(:l2_block_number, :bigint, null: false)
+      add(:l1_tx_hash, :bytea, null: false)
+      add(:l1_timestamp, :"timestamp without time zone", null: false)
+      add(:l1_block_number, :bigint, null: false)
+      add(:output_root, :bytea, null: false)
+
+      timestamps(null: false, type: :utc_datetime_usec)
+    end
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230206123308_add_op_withdrawals_table.exs b/apps/explorer/priv/optimism/migrations/20230206123308_add_op_withdrawals_table.exs
new file mode 100644
index 0000000000..cee87054f0
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230206123308_add_op_withdrawals_table.exs
@@ -0,0 +1,14 @@
+defmodule Explorer.Repo.Migrations.AddOpWithdrawalsTable do
+  use Ecto.Migration
+
+  def change do
+    create table(:op_withdrawals, primary_key: false) do
+      add(:msg_nonce, :numeric, precision: 100, null: false, primary_key: true)
+      add(:withdrawal_hash, :bytea, null: false)
+      add(:l2_tx_hash, :bytea, null: false)
+      add(:l2_block_number, :bigint, null: false)
+
+      timestamps(null: false, type: :utc_datetime_usec)
+    end
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230212162845_add_op_withdrawal_events_table.exs b/apps/explorer/priv/optimism/migrations/20230212162845_add_op_withdrawal_events_table.exs
new file mode 100644
index 0000000000..12f5d31606
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230212162845_add_op_withdrawal_events_table.exs
@@ -0,0 +1,22 @@
+defmodule Explorer.Repo.Migrations.AddOpWithdrawalEventsTable do
+  use Ecto.Migration
+
+  def change do
+    execute(
+      "CREATE TYPE withdrawal_event_type AS ENUM ('WithdrawalProven', 'WithdrawalFinalized')",
+      "DROP TYPE withdrawal_event_type"
+    )
+
+    create table(:op_withdrawal_events, primary_key: false) do
+      add(:withdrawal_hash, :bytea, null: false, primary_key: true)
+      add(:l1_event_type, :withdrawal_event_type, null: false, primary_key: true)
+      add(:l1_timestamp, :"timestamp without time zone", null: false)
+      add(:l1_tx_hash, :bytea, null: false)
+      add(:l1_block_number, :bigint, null: false)
+
+      timestamps(null: false, type: :utc_datetime_usec)
+    end
+
+    create(index(:op_withdrawal_events, :l1_timestamp))
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230216135703_add_op_transaction_batches_table.exs b/apps/explorer/priv/optimism/migrations/20230216135703_add_op_transaction_batches_table.exs
new file mode 100644
index 0000000000..59fbc98226
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230216135703_add_op_transaction_batches_table.exs
@@ -0,0 +1,14 @@
+defmodule Explorer.Repo.Migrations.AddOpTransactionBatchesTable do
+  use Ecto.Migration
+
+  def change do
+    create table(:op_transaction_batches, primary_key: false) do
+      add(:l2_block_number, :bigint, null: false, primary_key: true)
+      add(:epoch_number, :bigint, null: false)
+      add(:l1_tx_hashes, {:array, :bytea}, null: false)
+      add(:l1_tx_timestamp, :"timestamp without time zone", null: false)
+
+      timestamps(null: false, type: :utc_datetime_usec)
+    end
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230220202107_create_op_deposits.exs b/apps/explorer/priv/optimism/migrations/20230220202107_create_op_deposits.exs
new file mode 100644
index 0000000000..3f31399552
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230220202107_create_op_deposits.exs
@@ -0,0 +1,17 @@
+defmodule Explorer.Repo.Migrations.CreateOpDeposits do
+  use Ecto.Migration
+
+  def change do
+    create table(:op_deposits, primary_key: false) do
+      add(:l1_block_number, :bigint, null: false)
+      add(:l1_block_timestamp, :"timestamp without time zone", null: true)
+      add(:l1_transaction_hash, :bytea, null: false)
+      add(:l1_transaction_origin, :bytea, null: false)
+      add(:l2_transaction_hash, :bytea, null: false, primary_key: true)
+
+      timestamps(null: false, type: :utc_datetime_usec)
+    end
+
+    create(index(:op_deposits, [:l1_block_number]))
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230301105051_rename_fields.exs b/apps/explorer/priv/optimism/migrations/20230301105051_rename_fields.exs
new file mode 100644
index 0000000000..d7041587a3
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230301105051_rename_fields.exs
@@ -0,0 +1,12 @@
+defmodule Explorer.Repo.Migrations.RenameFields do
+  use Ecto.Migration
+
+  def change do
+    rename(table(:op_transaction_batches), :l1_tx_hashes, to: :l1_transaction_hashes)
+    rename(table(:op_transaction_batches), :l1_tx_timestamp, to: :l1_timestamp)
+    rename(table(:op_output_roots), :l1_tx_hash, to: :l1_transaction_hash)
+    rename(table(:op_withdrawals), :l2_tx_hash, to: :l2_transaction_hash)
+    rename(table(:op_withdrawals), :withdrawal_hash, to: :hash)
+    rename(table(:op_withdrawal_events), :l1_tx_hash, to: :l1_transaction_hash)
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230303125841_add_op_indexes.exs b/apps/explorer/priv/optimism/migrations/20230303125841_add_op_indexes.exs
new file mode 100644
index 0000000000..e9db8591c3
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230303125841_add_op_indexes.exs
@@ -0,0 +1,8 @@
+defmodule Explorer.Repo.Migrations.AddOpIndexes do
+  use Ecto.Migration
+
+  def change do
+    create(index(:op_output_roots, [:l1_block_number]))
+    create(index(:op_withdrawal_events, [:l1_block_number]))
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230307090655_add_op_frame_sequences_table.exs b/apps/explorer/priv/optimism/migrations/20230307090655_add_op_frame_sequences_table.exs
new file mode 100644
index 0000000000..ea7f192af6
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230307090655_add_op_frame_sequences_table.exs
@@ -0,0 +1,24 @@
+defmodule Explorer.Repo.Migrations.AddOpFrameSequencesTable do
+  use Ecto.Migration
+
+  def change do
+    create table(:op_frame_sequences, primary_key: true) do
+      add(:l1_transaction_hashes, {:array, :bytea}, null: false)
+      add(:l1_timestamp, :"timestamp without time zone", null: false)
+
+      timestamps(null: false, type: :utc_datetime_usec)
+    end
+
+    alter table(:op_transaction_batches) do
+      remove(:l1_transaction_hashes)
+      remove(:l1_timestamp)
+
+      add(
+        :frame_sequence_id,
+        references(:op_frame_sequences, on_delete: :restrict, on_update: :update_all, type: :bigint),
+        null: false,
+        after: :epoch_number
+      )
+    end
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20230731130103_modify_collated_gas_price_constraint.exs b/apps/explorer/priv/optimism/migrations/20230731130103_modify_collated_gas_price_constraint.exs
new file mode 100644
index 0000000000..59a07d8491
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20230731130103_modify_collated_gas_price_constraint.exs
@@ -0,0 +1,15 @@
+defmodule Explorer.Repo.Optimism.Migrations.ModifyCollatedGasPriceConstraint do
+  use Ecto.Migration
+
+  def change do
+    execute("ALTER TABLE transactions DROP CONSTRAINT collated_gas_price")
+
+    create(
+      constraint(
+        :transactions,
+        :collated_gas_price,
+        check: "block_hash IS NULL OR gas_price IS NOT NULL OR max_fee_per_gas IS NOT NULL"
+      )
+    )
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20231025102325_add_op_withdrawal_index.exs b/apps/explorer/priv/optimism/migrations/20231025102325_add_op_withdrawal_index.exs
new file mode 100644
index 0000000000..3fda19158b
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20231025102325_add_op_withdrawal_index.exs
@@ -0,0 +1,7 @@
+defmodule Explorer.Repo.Migrations.AddOpWithdrawalIndex do
+  use Ecto.Migration
+
+  def change do
+    create(index(:op_withdrawals, :l2_transaction_hash))
+  end
+end
diff --git a/apps/explorer/priv/optimism/migrations/20240124124644_remove_op_epoch_number_field.exs b/apps/explorer/priv/optimism/migrations/20240124124644_remove_op_epoch_number_field.exs
new file mode 100644
index 0000000000..652f955189
--- /dev/null
+++ b/apps/explorer/priv/optimism/migrations/20240124124644_remove_op_epoch_number_field.exs
@@ -0,0 +1,9 @@
+defmodule Explorer.Repo.Migrations.RemoveOpEpochNumberField do
+  use Ecto.Migration
+
+  def change do
+    alter table(:op_transaction_batches) do
+      remove(:epoch_number)
+    end
+  end
+end
diff --git a/apps/explorer/test/explorer/chain/transaction_test.exs b/apps/explorer/test/explorer/chain/transaction_test.exs
index 7a5ce5bbe5..4fb41c3b24 100644
--- a/apps/explorer/test/explorer/chain/transaction_test.exs
+++ b/apps/explorer/test/explorer/chain/transaction_test.exs
@@ -840,4 +840,50 @@ defmodule Explorer.Chain.TransactionTest do
       {:ok, "0x0000000000000000000000000000000000000000000000000000000000000000"}
     end)
   end
+
+  describe "fee/2" do
+    test "is_nil(gas_price), is_nil(gas_used)" do
+      assert {:maximum, nil} == Transaction.fee(%Transaction{gas: 100_500, gas_price: nil, gas_used: nil}, :wei)
+    end
+
+    test "not is_nil(gas_price), is_nil(gas_used)" do
+      assert {:maximum, Decimal.new("20100000")} ==
+               Transaction.fee(
+                 %Transaction{gas: 100_500, gas_price: %Explorer.Chain.Wei{value: 200}, gas_used: nil},
+                 :wei
+               )
+    end
+
+    test "is_nil(gas_price), not is_nil(gas_used)" do
+      transaction = %Transaction{
+        gas_price: nil,
+        max_priority_fee_per_gas: %Explorer.Chain.Wei{value: 10_000_000_000},
+        max_fee_per_gas: %Explorer.Chain.Wei{value: 63_000_000_000},
+        gas_used: Decimal.new(100),
+        block: %{base_fee_per_gas: %Explorer.Chain.Wei{value: 42_000_000_000}}
+      }
+
+      if Application.get_env(:explorer, :chain_type) == "optimism" do
+        {:actual, nil} ==
+          Transaction.fee(
+            transaction,
+            :wei
+          )
+      else
+        assert {:actual, Decimal.new("5200000000000")} ==
+                 Transaction.fee(
+                   transaction,
+                   :wei
+                 )
+      end
+    end
+
+    test "not is_nil(gas_price), not is_nil(gas_used)" do
+      assert {:actual, Decimal.new("6")} ==
+               Transaction.fee(
+                 %Transaction{gas_price: %Explorer.Chain.Wei{value: 2}, gas_used: Decimal.new(3)},
+                 :wei
+               )
+    end
+  end
 end
diff --git a/apps/indexer/README.md b/apps/indexer/README.md
index 60d286cdf5..5a22018299 100644
--- a/apps/indexer/README.md
+++ b/apps/indexer/README.md
@@ -24,6 +24,7 @@ Some data has to be extracted from already fetched data, and there're several tr
 - `transaction_actions`: parses logs to extract transaction actions
 - `address_token_balances`: creates token balance entities for further fetching, based on detected token transfers
 - `blocks`: extracts block signer hash from additional data for Clique chains
+- `optimism_withdrawals`: parses logs to extract L2 withdrawal messages
 
 ### Root fetchers
 
@@ -31,6 +32,11 @@ Some data has to be extracted from already fetched data, and there're several tr
 - `block/realtime`: listens for new blocks from websocket and polls node for new blocks, imports new ones one by one
 - `block/catchup`: gets unfetched ranges of blocks, imports them in batches
 - `transaction_action`: optionally fetches/rewrites transaction actions for old blocks (in a given range of blocks for given protocols)
+- `optimism/txn_batch`: fetches transaction batches of Optimism chain
+- `optimism/output_root`: fetches output roots of Optimism chain
+- `optimism/deposit`: fetches deposits to Optimism chain
+- `optimism/withdrawal`: fetches withdrawals from Optimism chain
+- `optimism/withdrawal_event`: fetches withdrawal events on L1 chain
 - `withdrawals`: optionally fetches withdrawals for old blocks (in the given from boundary of block numbers)
 
 Both block fetchers retrieve/extract the blocks themselves and the following additional data:
diff --git a/apps/indexer/lib/indexer/block/fetcher.ex b/apps/indexer/lib/indexer/block/fetcher.ex
index 39b984d957..e17c48c3e5 100644
--- a/apps/indexer/lib/indexer/block/fetcher.ex
+++ b/apps/indexer/lib/indexer/block/fetcher.ex
@@ -44,6 +44,8 @@ defmodule Indexer.Block.Fetcher do
     TransactionActions
   }
 
+  alias Indexer.Transform.Optimism.Withdrawals, as: OptimismWithdrawals
+
   alias Indexer.Transform.PolygonEdge.{DepositExecutes, Withdrawals}
 
   alias Indexer.Transform.Shibarium.Bridge, as: ShibariumBridge
@@ -149,6 +151,8 @@ defmodule Indexer.Block.Fetcher do
          %{token_transfers: token_transfers, tokens: tokens} = TokenTransfers.parse(logs),
          %{transaction_actions: transaction_actions} = TransactionActions.parse(logs),
          %{mint_transfers: mint_transfers} = MintTransfers.parse(logs),
+         optimism_withdrawals =
+           if(callback_module == Indexer.Block.Realtime.Fetcher, do: OptimismWithdrawals.parse(logs), else: []),
          polygon_edge_withdrawals =
            if(callback_module == Indexer.Block.Realtime.Fetcher, do: Withdrawals.parse(logs), else: []),
          polygon_edge_deposit_executes =
@@ -215,6 +219,7 @@ defmodule Indexer.Block.Fetcher do
          },
          chain_type_import_options = %{
            transactions_with_receipts: transactions_with_receipts,
+           optimism_withdrawals: optimism_withdrawals,
            polygon_edge_withdrawals: polygon_edge_withdrawals,
            polygon_edge_deposit_executes: polygon_edge_deposit_executes,
            polygon_zkevm_bridge_operations: polygon_zkevm_bridge_operations,
@@ -248,6 +253,7 @@ defmodule Indexer.Block.Fetcher do
 
   defp import_options(basic_import_options, %{
          transactions_with_receipts: transactions_with_receipts,
+         optimism_withdrawals: optimism_withdrawals,
          polygon_edge_withdrawals: polygon_edge_withdrawals,
          polygon_edge_deposit_executes: polygon_edge_deposit_executes,
          polygon_zkevm_bridge_operations: polygon_zkevm_bridge_operations,
@@ -260,6 +266,10 @@ defmodule Indexer.Block.Fetcher do
           params: transactions_with_receipts |> Enum.filter(&Map.has_key?(&1, :max_fee_per_blob_gas))
         })
 
+      "optimism" ->
+        basic_import_options
+        |> Map.put_new(:optimism_withdrawals, %{params: optimism_withdrawals})
+
       "polygon_edge" ->
         basic_import_options
         |> Map.put_new(:polygon_edge_withdrawals, %{params: polygon_edge_withdrawals})
diff --git a/apps/indexer/lib/indexer/block/realtime/fetcher.ex b/apps/indexer/lib/indexer/block/realtime/fetcher.ex
index 31e3a83ea7..61e86cf122 100644
--- a/apps/indexer/lib/indexer/block/realtime/fetcher.ex
+++ b/apps/indexer/lib/indexer/block/realtime/fetcher.ex
@@ -35,6 +35,8 @@ defmodule Indexer.Block.Realtime.Fetcher do
   alias Explorer.Utility.MissingRangesManipulator
   alias Indexer.{Block, Tracer}
   alias Indexer.Block.Realtime.TaskSupervisor
+  alias Indexer.Fetcher.Optimism.TxnBatch, as: OptimismTxnBatch
+  alias Indexer.Fetcher.Optimism.Withdrawal, as: OptimismWithdrawal
   alias Indexer.Fetcher.PolygonEdge.{DepositExecute, Withdrawal}
   alias Indexer.Fetcher.PolygonZkevm.BridgeL2, as: PolygonZkevmBridgeL2
   alias Indexer.Fetcher.Shibarium.L2, as: ShibariumBridgeL2
@@ -264,6 +266,9 @@ defmodule Indexer.Block.Realtime.Fetcher do
     Indexer.Logger.metadata(
       fn ->
         if reorg? do
+          # we need to remove all rows from `op_transaction_batches` and `op_withdrawals` tables previously written starting from reorg block number
+          remove_optimism_assets_by_number(block_number_to_fetch)
+
           # we need to remove all rows from `polygon_edge_withdrawals` and `polygon_edge_deposit_executes` tables previously written starting from reorg block number
           remove_polygon_edge_assets_by_number(block_number_to_fetch)
 
@@ -285,6 +290,13 @@ defmodule Indexer.Block.Realtime.Fetcher do
     )
   end
 
+  defp remove_optimism_assets_by_number(block_number_to_fetch) do
+    if Application.get_env(:explorer, :chain_type) == "optimism" do
+      OptimismTxnBatch.handle_l2_reorg(block_number_to_fetch)
+      OptimismWithdrawal.remove(block_number_to_fetch)
+    end
+  end
+
   defp remove_polygon_edge_assets_by_number(block_number_to_fetch) do
     if Application.get_env(:explorer, :chain_type) == "polygon_edge" do
       Withdrawal.remove(block_number_to_fetch)
diff --git a/apps/indexer/lib/indexer/fetcher/coin_balance/realtime.ex b/apps/indexer/lib/indexer/fetcher/coin_balance/realtime.ex
index 72b216c92a..ba93a5c790 100644
--- a/apps/indexer/lib/indexer/fetcher/coin_balance/realtime.ex
+++ b/apps/indexer/lib/indexer/fetcher/coin_balance/realtime.ex
@@ -9,7 +9,6 @@ defmodule Indexer.Fetcher.CoinBalance.Realtime do
   alias Explorer.Chain.{Block, Hash}
   alias Indexer.{BufferedTask, Tracer}
   alias Indexer.Fetcher.CoinBalance.Helper
-  alias Indexer.Fetcher.CoinBalance.Realtime.Supervisor, as: CoinBalanceSupervisor
 
   @behaviour BufferedTask
 
diff --git a/apps/indexer/lib/indexer/fetcher/optimism.ex b/apps/indexer/lib/indexer/fetcher/optimism.ex
new file mode 100644
index 0000000000..62d5fe1cd0
--- /dev/null
+++ b/apps/indexer/lib/indexer/fetcher/optimism.ex
@@ -0,0 +1,406 @@
+defmodule Indexer.Fetcher.Optimism do
+  @moduledoc """
+  Contains common functions for Optimism* fetchers.
+  """
+
+  use GenServer
+  use Indexer.Fetcher
+
+  require Logger
+
+  import EthereumJSONRPC,
+    only: [
+      fetch_block_number_by_tag_op_version: 2,
+      json_rpc: 2,
+      integer_to_quantity: 1,
+      quantity_to_integer: 1,
+      request: 1
+    ]
+
+  import Explorer.Helper, only: [parse_integer: 1]
+
+  alias EthereumJSONRPC.Block.ByNumber
+  alias Explorer.Chain.Events.{Publisher, Subscriber}
+  alias Indexer.{BoundQueue, Helper}
+
+  @fetcher_name :optimism
+  @block_check_interval_range_size 100
+  @eth_get_logs_range_size 1000
+  @finite_retries_number 3
+
+  def child_spec(start_link_arguments) do
+    spec = %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, start_link_arguments},
+      restart: :transient,
+      type: :worker
+    }
+
+    Supervisor.child_spec(spec, [])
+  end
+
+  def start_link(args, gen_server_options \\ []) do
+    GenServer.start_link(__MODULE__, args, Keyword.put_new(gen_server_options, :name, __MODULE__))
+  end
+
+  @impl GenServer
+  def init(_args) do
+    Logger.metadata(fetcher: @fetcher_name)
+
+    modules_using_reorg_monitor = [
+      Indexer.Fetcher.Optimism.TxnBatch,
+      Indexer.Fetcher.Optimism.OutputRoot,
+      Indexer.Fetcher.Optimism.WithdrawalEvent
+    ]
+
+    reorg_monitor_not_needed =
+      modules_using_reorg_monitor
+      |> Enum.all?(fn module ->
+        is_nil(Application.get_all_env(:indexer)[module][:start_block_l1])
+      end)
+
+    if reorg_monitor_not_needed do
+      :ignore
+    else
+      optimism_l1_rpc = Application.get_all_env(:indexer)[Indexer.Fetcher.Optimism][:optimism_l1_rpc]
+
+      json_rpc_named_arguments = json_rpc_named_arguments(optimism_l1_rpc)
+
+      {:ok, %{}, {:continue, json_rpc_named_arguments}}
+    end
+  end
+
+  @impl GenServer
+  def handle_continue(json_rpc_named_arguments, _state) do
+    {:ok, block_check_interval, _} = get_block_check_interval(json_rpc_named_arguments)
+    Process.send(self(), :reorg_monitor, [])
+
+    {:noreply,
+     %{block_check_interval: block_check_interval, json_rpc_named_arguments: json_rpc_named_arguments, prev_latest: 0}}
+  end
+
+  @impl GenServer
+  def handle_info(
+        :reorg_monitor,
+        %{
+          block_check_interval: block_check_interval,
+          json_rpc_named_arguments: json_rpc_named_arguments,
+          prev_latest: prev_latest
+        } = state
+      ) do
+    {:ok, latest} = get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
+
+    if latest < prev_latest do
+      Logger.warning("Reorg detected: previous latest block ##{prev_latest}, current latest block ##{latest}.")
+
+      Publisher.broadcast([{:optimism_reorg_block, latest}], :realtime)
+    end
+
+    Process.send_after(self(), :reorg_monitor, block_check_interval)
+
+    {:noreply, %{state | prev_latest: latest}}
+  end
+
+  @doc """
+  Calculates average block time in milliseconds (based on the latest 100 blocks) divided by 2.
+  Sends corresponding requests to the RPC node.
+  Returns a tuple {:ok, block_check_interval, last_safe_block}
+  where `last_safe_block` is the number of the recent `safe` or `latest` block (depending on which one is available).
+  Returns {:error, description} in case of error.
+  """
+  @spec get_block_check_interval(list()) :: {:ok, non_neg_integer(), non_neg_integer()} | {:error, any()}
+  def get_block_check_interval(json_rpc_named_arguments) do
+    {last_safe_block, _} = get_safe_block(json_rpc_named_arguments)
+
+    first_block = max(last_safe_block - @block_check_interval_range_size, 1)
+
+    with {:ok, first_block_timestamp} <-
+           get_block_timestamp_by_number(first_block, json_rpc_named_arguments, Helper.infinite_retries_number()),
+         {:ok, last_safe_block_timestamp} <-
+           get_block_timestamp_by_number(last_safe_block, json_rpc_named_arguments, Helper.infinite_retries_number()) do
+      block_check_interval =
+        ceil((last_safe_block_timestamp - first_block_timestamp) / (last_safe_block - first_block) * 1000 / 2)
+
+      Logger.info("Block check interval is calculated as #{block_check_interval} ms.")
+      {:ok, block_check_interval, last_safe_block}
+    else
+      {:error, error} ->
+        {:error, "Failed to calculate block check interval due to #{inspect(error)}"}
+    end
+  end
+
+  @doc """
+  Fetches block number by its tag (e.g. `latest` or `safe`) using RPC request.
+  Performs a specified number of retries (up to) if the first attempt returns error.
+  """
+  @spec get_block_number_by_tag(binary(), list(), non_neg_integer()) :: {:ok, non_neg_integer()} | {:error, atom()}
+  def get_block_number_by_tag(tag, json_rpc_named_arguments, retries \\ @finite_retries_number) do
+    error_message = &"Cannot fetch #{tag} block number. Error: #{inspect(&1)}"
+
+    Helper.repeated_call(
+      &fetch_block_number_by_tag_op_version/2,
+      [tag, json_rpc_named_arguments],
+      error_message,
+      retries
+    )
+  end
+
+  @doc """
+  Tries to get `safe` block number from the RPC node.
+  If it's not available, gets the `latest` one.
+  Returns a tuple of `{block_number, is_latest}`
+  where `is_latest` is true if the `safe` is not available.
+  """
+  @spec get_safe_block(list()) :: {non_neg_integer(), boolean()}
+  def get_safe_block(json_rpc_named_arguments) do
+    case get_block_number_by_tag("safe", json_rpc_named_arguments) do
+      {:ok, safe_block} ->
+        {safe_block, false}
+
+      {:error, :not_found} ->
+        {:ok, latest_block} =
+          get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
+
+        {latest_block, true}
+    end
+  end
+
+  defp get_block_timestamp_by_number_inner(number, json_rpc_named_arguments) do
+    result =
+      %{id: 0, number: number}
+      |> ByNumber.request(false)
+      |> json_rpc(json_rpc_named_arguments)
+
+    with {:ok, block} <- result,
+         false <- is_nil(block),
+         timestamp <- Map.get(block, "timestamp"),
+         false <- is_nil(timestamp) do
+      {:ok, quantity_to_integer(timestamp)}
+    else
+      {:error, message} ->
+        {:error, message}
+
+      true ->
+        {:error, "RPC returned nil."}
+    end
+  end
+
+  @doc """
+  Fetches block timestamp by its number using RPC request.
+  Performs a specified number of retries (up to) if the first attempt returns error.
+  """
+  @spec get_block_timestamp_by_number(non_neg_integer(), list(), non_neg_integer()) ::
+          {:ok, non_neg_integer()} | {:error, any()}
+  def get_block_timestamp_by_number(number, json_rpc_named_arguments, retries \\ @finite_retries_number) do
+    func = &get_block_timestamp_by_number_inner/2
+    args = [number, json_rpc_named_arguments]
+    error_message = &"Cannot fetch block ##{number} or its timestamp. Error: #{inspect(&1)}"
+    Helper.repeated_call(func, args, error_message, retries)
+  end
+
+  @doc """
+  Fetches logs emitted by the specified contract (address)
+  within the specified block range and the first topic from the RPC node.
+  Performs a specified number of retries (up to) if the first attempt returns error.
+  """
+  @spec get_logs(
+          non_neg_integer() | binary(),
+          non_neg_integer() | binary(),
+          binary(),
+          binary() | list(),
+          list(),
+          non_neg_integer()
+        ) :: {:ok, list()} | {:error, term()}
+  def get_logs(from_block, to_block, address, topic0, json_rpc_named_arguments, retries) do
+    processed_from_block = if is_integer(from_block), do: integer_to_quantity(from_block), else: from_block
+    processed_to_block = if is_integer(to_block), do: integer_to_quantity(to_block), else: to_block
+
+    req =
+      request(%{
+        id: 0,
+        method: "eth_getLogs",
+        params: [
+          %{
+            :fromBlock => processed_from_block,
+            :toBlock => processed_to_block,
+            :address => address,
+            :topics => [topic0]
+          }
+        ]
+      })
+
+    error_message = &"Cannot fetch logs for the block range #{from_block}..#{to_block}. Error: #{inspect(&1)}"
+
+    Helper.repeated_call(&json_rpc/2, [req, json_rpc_named_arguments], error_message, retries)
+  end
+
+  @doc """
+  Fetches transaction data by its hash using RPC request.
+  Performs a specified number of retries (up to) if the first attempt returns error.
+  """
+  @spec get_transaction_by_hash(binary() | nil, list(), non_neg_integer()) :: {:ok, any()} | {:error, any()}
+  def get_transaction_by_hash(hash, json_rpc_named_arguments, retries_left \\ @finite_retries_number)
+
+  def get_transaction_by_hash(hash, _json_rpc_named_arguments, _retries_left) when is_nil(hash), do: {:ok, nil}
+
+  def get_transaction_by_hash(hash, json_rpc_named_arguments, retries) do
+    req =
+      request(%{
+        id: 0,
+        method: "eth_getTransactionByHash",
+        params: [hash]
+      })
+
+    error_message = &"eth_getTransactionByHash failed. Error: #{inspect(&1)}"
+
+    Helper.repeated_call(&json_rpc/2, [req, json_rpc_named_arguments], error_message, retries)
+  end
+
+  def get_logs_range_size do
+    @eth_get_logs_range_size
+  end
+
+  @doc """
+  Forms JSON RPC named arguments for the given RPC URL.
+  """
+  @spec json_rpc_named_arguments(binary()) :: list()
+  def json_rpc_named_arguments(optimism_l1_rpc) do
+    [
+      transport: EthereumJSONRPC.HTTP,
+      transport_options: [
+        http: EthereumJSONRPC.HTTP.HTTPoison,
+        url: optimism_l1_rpc,
+        http_options: [
+          recv_timeout: :timer.minutes(10),
+          timeout: :timer.minutes(10),
+          hackney: [pool: :ethereum_jsonrpc]
+        ]
+      ]
+    ]
+  end
+
+  def init_continue(env, contract_address, caller)
+      when caller in [Indexer.Fetcher.Optimism.WithdrawalEvent, Indexer.Fetcher.Optimism.OutputRoot] do
+    {contract_name, table_name, start_block_note} =
+      if caller == Indexer.Fetcher.Optimism.WithdrawalEvent do
+        {"Optimism Portal", "op_withdrawal_events", "Withdrawals L1"}
+      else
+        {"Output Oracle", "op_output_roots", "Output Roots"}
+      end
+
+    with {:start_block_l1_undefined, false} <- {:start_block_l1_undefined, is_nil(env[:start_block_l1])},
+         {:reorg_monitor_started, true} <- {:reorg_monitor_started, !is_nil(Process.whereis(Indexer.Fetcher.Optimism))},
+         optimism_l1_rpc = Application.get_all_env(:indexer)[Indexer.Fetcher.Optimism][:optimism_l1_rpc],
+         {:rpc_l1_undefined, false} <- {:rpc_l1_undefined, is_nil(optimism_l1_rpc)},
+         {:contract_is_valid, true} <- {:contract_is_valid, Helper.address_correct?(contract_address)},
+         start_block_l1 = parse_integer(env[:start_block_l1]),
+         false <- is_nil(start_block_l1),
+         true <- start_block_l1 > 0,
+         {last_l1_block_number, last_l1_transaction_hash} <- caller.get_last_l1_item(),
+         {:start_block_l1_valid, true} <-
+           {:start_block_l1_valid, start_block_l1 <= last_l1_block_number || last_l1_block_number == 0},
+         json_rpc_named_arguments = json_rpc_named_arguments(optimism_l1_rpc),
+         {:ok, last_l1_tx} <- get_transaction_by_hash(last_l1_transaction_hash, json_rpc_named_arguments),
+         {:l1_tx_not_found, false} <- {:l1_tx_not_found, !is_nil(last_l1_transaction_hash) && is_nil(last_l1_tx)},
+         {:ok, block_check_interval, last_safe_block} <- get_block_check_interval(json_rpc_named_arguments) do
+      start_block = max(start_block_l1, last_l1_block_number)
+
+      Subscriber.to(:optimism_reorg_block, :realtime)
+
+      Process.send(self(), :continue, [])
+
+      {:noreply,
+       %{
+         contract_address: contract_address,
+         block_check_interval: block_check_interval,
+         start_block: start_block,
+         end_block: last_safe_block,
+         json_rpc_named_arguments: json_rpc_named_arguments
+       }}
+    else
+      {:start_block_l1_undefined, true} ->
+        # the process shouldn't start if the start block is not defined
+        {:stop, :normal, %{}}
+
+      {:reorg_monitor_started, false} ->
+        Logger.error("Cannot start this process as reorg monitor in Indexer.Fetcher.Optimism is not started.")
+        {:stop, :normal, %{}}
+
+      {:rpc_l1_undefined, true} ->
+        Logger.error("L1 RPC URL is not defined.")
+        {:stop, :normal, %{}}
+
+      {:contract_is_valid, false} ->
+        Logger.error("#{contract_name} contract address is invalid or not defined.")
+        {:stop, :normal, %{}}
+
+      {:start_block_l1_valid, false} ->
+        Logger.error("Invalid L1 Start Block value. Please, check the value and #{table_name} table.")
+        {:stop, :normal, %{}}
+
+      {:error, error_data} ->
+        Logger.error(
+          "Cannot get last L1 transaction from RPC by its hash, last safe/latest block, or block timestamp by its number due to RPC error: #{inspect(error_data)}"
+        )
+
+        {:stop, :normal, %{}}
+
+      {:l1_tx_not_found, true} ->
+        Logger.error(
+          "Cannot find last L1 transaction from RPC by its hash. Probably, there was a reorg on L1 chain. Please, check #{table_name} table."
+        )
+
+        {:stop, :normal, %{}}
+
+      _ ->
+        Logger.error("#{start_block_note} Start Block is invalid or zero.")
+        {:stop, :normal, %{}}
+    end
+  end
+
+  def repeated_request(req, error_message, json_rpc_named_arguments, retries) do
+    Helper.repeated_call(&json_rpc/2, [req, json_rpc_named_arguments], error_message, retries)
+  end
+
+  def reorg_block_pop(fetcher_name) do
+    table_name = reorg_table_name(fetcher_name)
+
+    case BoundQueue.pop_front(reorg_queue_get(table_name)) do
+      {:ok, {block_number, updated_queue}} ->
+        :ets.insert(table_name, {:queue, updated_queue})
+        block_number
+
+      {:error, :empty} ->
+        nil
+    end
+  end
+
+  def reorg_block_push(fetcher_name, block_number) do
+    table_name = reorg_table_name(fetcher_name)
+    {:ok, updated_queue} = BoundQueue.push_back(reorg_queue_get(table_name), block_number)
+    :ets.insert(table_name, {:queue, updated_queue})
+  end
+
+  defp reorg_queue_get(table_name) do
+    if :ets.whereis(table_name) == :undefined do
+      :ets.new(table_name, [
+        :set,
+        :named_table,
+        :public,
+        read_concurrency: true,
+        write_concurrency: true
+      ])
+    end
+
+    with info when info != :undefined <- :ets.info(table_name),
+         [{_, value}] <- :ets.lookup(table_name, :queue) do
+      value
+    else
+      _ -> %BoundQueue{}
+    end
+  end
+
+  defp reorg_table_name(fetcher_name) do
+    :"#{fetcher_name}#{:_reorgs}"
+  end
+end
diff --git a/apps/indexer/lib/indexer/fetcher/optimism/deposit.ex b/apps/indexer/lib/indexer/fetcher/optimism/deposit.ex
new file mode 100644
index 0000000000..c3a4363587
--- /dev/null
+++ b/apps/indexer/lib/indexer/fetcher/optimism/deposit.ex
@@ -0,0 +1,565 @@
+defmodule Indexer.Fetcher.Optimism.Deposit do
+  @moduledoc """
+  Fills op_deposits DB table.
+  """
+
+  use GenServer
+  use Indexer.Fetcher
+
+  require Logger
+
+  import Ecto.Query
+
+  import EthereumJSONRPC, only: [integer_to_quantity: 1, quantity_to_integer: 1, request: 1]
+  import Explorer.Helper, only: [decode_data: 2, parse_integer: 1]
+
+  alias EthereumJSONRPC.Block.ByNumber
+  alias EthereumJSONRPC.Blocks
+  alias Explorer.{Chain, Repo}
+  alias Explorer.Chain.Events.Publisher
+  alias Explorer.Chain.Optimism.Deposit
+  alias Indexer.Fetcher.Optimism
+  alias Indexer.Helper
+
+  defstruct [
+    :batch_size,
+    :start_block,
+    :from_block,
+    :safe_block,
+    :optimism_portal,
+    :json_rpc_named_arguments,
+    mode: :catch_up,
+    filter_id: nil,
+    check_interval: nil
+  ]
+
+  # 32-byte signature of the event TransactionDeposited(address indexed from, address indexed to, uint256 indexed version, bytes opaqueData)
+  @transaction_deposited_event "0xb3813568d9991fc951961fcb4c784893574240a28925604d09fc577c55bb7c32"
+  @retry_interval_minutes 3
+  @retry_interval :timer.minutes(@retry_interval_minutes)
+  @address_prefix "0x000000000000000000000000"
+  @batch_size 500
+  @fetcher_name :optimism_deposits
+
+  def child_spec(start_link_arguments) do
+    spec = %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, start_link_arguments},
+      restart: :transient,
+      type: :worker
+    }
+
+    Supervisor.child_spec(spec, [])
+  end
+
+  def start_link(args, gen_server_options \\ []) do
+    GenServer.start_link(__MODULE__, args, Keyword.put_new(gen_server_options, :name, __MODULE__))
+  end
+
+  @impl GenServer
+  def init(_args) do
+    {:ok, %{}, {:continue, :ok}}
+  end
+
+  @impl GenServer
+  def handle_continue(:ok, state) do
+    Logger.metadata(fetcher: @fetcher_name)
+
+    env = Application.get_all_env(:indexer)[__MODULE__]
+    optimism_env = Application.get_all_env(:indexer)[Indexer.Fetcher.Optimism]
+    optimism_portal = optimism_env[:optimism_l1_portal]
+    optimism_l1_rpc = optimism_env[:optimism_l1_rpc]
+
+    with {:start_block_l1_undefined, false} <- {:start_block_l1_undefined, is_nil(env[:start_block_l1])},
+         {:optimism_portal_valid, true} <- {:optimism_portal_valid, Helper.address_correct?(optimism_portal)},
+         {:rpc_l1_undefined, false} <- {:rpc_l1_undefined, is_nil(optimism_l1_rpc)},
+         start_block_l1 <- parse_integer(env[:start_block_l1]),
+         false <- is_nil(start_block_l1),
+         true <- start_block_l1 > 0,
+         {last_l1_block_number, last_l1_tx_hash} <- get_last_l1_item(),
+         json_rpc_named_arguments = Optimism.json_rpc_named_arguments(optimism_l1_rpc),
+         {:ok, last_l1_tx} <- Optimism.get_transaction_by_hash(last_l1_tx_hash, json_rpc_named_arguments),
+         {:l1_tx_not_found, false} <- {:l1_tx_not_found, !is_nil(last_l1_tx_hash) && is_nil(last_l1_tx)},
+         {safe_block, _} = Optimism.get_safe_block(json_rpc_named_arguments),
+         {:start_block_l1_valid, true} <-
+           {:start_block_l1_valid,
+            (start_block_l1 <= last_l1_block_number || last_l1_block_number == 0) && start_block_l1 <= safe_block} do
+      start_block = max(start_block_l1, last_l1_block_number)
+
+      if start_block > safe_block do
+        Process.send(self(), :switch_to_realtime, [])
+      else
+        Process.send(self(), :fetch, [])
+      end
+
+      {:noreply,
+       %__MODULE__{
+         start_block: start_block,
+         from_block: start_block,
+         safe_block: safe_block,
+         optimism_portal: optimism_portal,
+         json_rpc_named_arguments: json_rpc_named_arguments,
+         batch_size: parse_integer(env[:batch_size]) || @batch_size
+       }}
+    else
+      {:start_block_l1_undefined, true} ->
+        # the process shouldn't start if the start block is not defined
+        {:stop, :normal, state}
+
+      {:start_block_l1_valid, false} ->
+        Logger.error("Invalid L1 Start Block value. Please, check the value and op_deposits table.")
+        {:stop, :normal, state}
+
+      {:rpc_l1_undefined, true} ->
+        Logger.error("L1 RPC URL is not defined.")
+        {:stop, :normal, state}
+
+      {:optimism_portal_valid, false} ->
+        Logger.error("OptimismPortal contract address is invalid or undefined.")
+        {:stop, :normal, state}
+
+      {:error, error_data} ->
+        Logger.error("Cannot get last L1 transaction from RPC by its hash due to the RPC error: #{inspect(error_data)}")
+
+        {:stop, :normal, state}
+
+      {:l1_tx_not_found, true} ->
+        Logger.error(
+          "Cannot find last L1 transaction from RPC by its hash. Probably, there was a reorg on L1 chain. Please, check op_deposits table."
+        )
+
+        {:stop, :normal, state}
+
+      _ ->
+        Logger.error("Optimism deposits L1 Start Block is invalid or zero.")
+        {:stop, :normal, state}
+    end
+  end
+
+  @impl GenServer
+  def handle_info(
+        :fetch,
+        %__MODULE__{
+          start_block: start_block,
+          from_block: from_block,
+          safe_block: safe_block,
+          optimism_portal: optimism_portal,
+          json_rpc_named_arguments: json_rpc_named_arguments,
+          mode: :catch_up,
+          batch_size: batch_size
+        } = state
+      ) do
+    to_block = min(from_block + batch_size, safe_block)
+
+    with {:logs, {:ok, logs}} <-
+           {:logs,
+            Optimism.get_logs(
+              from_block,
+              to_block,
+              optimism_portal,
+              @transaction_deposited_event,
+              json_rpc_named_arguments,
+              3
+            )},
+         _ = Helper.log_blocks_chunk_handling(from_block, to_block, start_block, safe_block, nil, :L1),
+         deposits = events_to_deposits(logs, json_rpc_named_arguments),
+         {:import, {:ok, _imported}} <-
+           {:import, Chain.import(%{optimism_deposits: %{params: deposits}, timeout: :infinity})} do
+      Publisher.broadcast(%{optimism_deposits: deposits}, :realtime)
+
+      Helper.log_blocks_chunk_handling(
+        from_block,
+        to_block,
+        start_block,
+        safe_block,
+        "#{Enum.count(deposits)} TransactionDeposited event(s)",
+        :L1
+      )
+
+      if to_block == safe_block do
+        Logger.info("Fetched all L1 blocks (#{start_block}..#{safe_block}), switching to realtime mode.")
+        Process.send(self(), :switch_to_realtime, [])
+        {:noreply, state}
+      else
+        Process.send(self(), :fetch, [])
+        {:noreply, %{state | from_block: to_block + 1}}
+      end
+    else
+      {:logs, {:error, _error}} ->
+        Logger.error("Cannot fetch logs. Retrying in #{@retry_interval_minutes} minutes...")
+        Process.send_after(self(), :fetch, @retry_interval)
+        {:noreply, state}
+
+      {:import, {:error, error}} ->
+        Logger.error("Cannot import logs due to #{inspect(error)}. Retrying in #{@retry_interval_minutes} minutes...")
+        Process.send_after(self(), :fetch, @retry_interval)
+        {:noreply, state}
+
+      {:import, {:error, step, failed_value, _changes_so_far}} ->
+        Logger.error(
+          "Failed to import #{inspect(failed_value)} during #{step}. Retrying in #{@retry_interval_minutes} minutes..."
+        )
+
+        Process.send_after(self(), :fetch, @retry_interval)
+        {:noreply, state}
+    end
+  end
+
+  @impl GenServer
+  def handle_info(
+        :switch_to_realtime,
+        %__MODULE__{
+          from_block: from_block,
+          safe_block: safe_block,
+          optimism_portal: optimism_portal,
+          json_rpc_named_arguments: json_rpc_named_arguments,
+          batch_size: batch_size,
+          mode: :catch_up
+        } = state
+      ) do
+    with {:check_interval, {:ok, check_interval, new_safe}} <-
+           {:check_interval, Optimism.get_block_check_interval(json_rpc_named_arguments)},
+         {:catch_up, _, false} <- {:catch_up, new_safe, new_safe - safe_block + 1 > batch_size},
+         {:logs, {:ok, logs}} <-
+           {:logs,
+            Optimism.get_logs(
+              max(safe_block, from_block),
+              "latest",
+              optimism_portal,
+              @transaction_deposited_event,
+              json_rpc_named_arguments,
+              3
+            )},
+         {:ok, filter_id} <-
+           get_new_filter(
+             max(safe_block, from_block),
+             "latest",
+             optimism_portal,
+             @transaction_deposited_event,
+             json_rpc_named_arguments
+           ) do
+      handle_new_logs(logs, json_rpc_named_arguments)
+      Process.send(self(), :fetch, [])
+      {:noreply, %{state | mode: :realtime, filter_id: filter_id, check_interval: check_interval}}
+    else
+      {:catch_up, new_safe, true} ->
+        Process.send(self(), :fetch, [])
+        {:noreply, %{state | safe_block: new_safe}}
+
+      {:logs, {:error, error}} ->
+        Logger.error("Failed to get logs while switching to realtime mode, reason: #{inspect(error)}")
+        Process.send_after(self(), :switch_to_realtime, @retry_interval)
+        {:noreply, state}
+
+      {:error, _error} ->
+        Logger.error("Failed to set logs filter. Retrying in #{@retry_interval_minutes} minutes...")
+        Process.send_after(self(), :switch_to_realtime, @retry_interval)
+        {:noreply, state}
+
+      {:check_interval, {:error, _error}} ->
+        Logger.error("Failed to calculate check_interval. Retrying in #{@retry_interval_minutes} minutes...")
+        Process.send_after(self(), :switch_to_realtime, @retry_interval)
+        {:noreply, state}
+    end
+  end
+
+  @impl GenServer
+  def handle_info(
+        :fetch,
+        %__MODULE__{
+          json_rpc_named_arguments: json_rpc_named_arguments,
+          mode: :realtime,
+          filter_id: filter_id,
+          check_interval: check_interval
+        } = state
+      ) do
+    case get_filter_changes(filter_id, json_rpc_named_arguments) do
+      {:ok, logs} ->
+        handle_new_logs(logs, json_rpc_named_arguments)
+        Process.send_after(self(), :fetch, check_interval)
+        {:noreply, state}
+
+      {:error, :filter_not_found} ->
+        Logger.error("The old filter not found on the node. Creating new filter...")
+        Process.send(self(), :update_filter, [])
+        {:noreply, state}
+
+      {:error, _error} ->
+        Logger.error("Failed to set logs filter. Retrying in #{@retry_interval_minutes} minutes...")
+        Process.send_after(self(), :fetch, @retry_interval)
+        {:noreply, state}
+    end
+  end
+
+  @impl GenServer
+  def handle_info(
+        :update_filter,
+        %__MODULE__{
+          optimism_portal: optimism_portal,
+          json_rpc_named_arguments: json_rpc_named_arguments,
+          mode: :realtime
+        } = state
+      ) do
+    {last_l1_block_number, _} = get_last_l1_item()
+
+    case get_new_filter(
+           last_l1_block_number + 1,
+           "latest",
+           optimism_portal,
+           @transaction_deposited_event,
+           json_rpc_named_arguments
+         ) do
+      {:ok, filter_id} ->
+        Process.send(self(), :fetch, [])
+        {:noreply, %{state | filter_id: filter_id}}
+
+      {:error, _error} ->
+        Logger.error("Failed to set logs filter. Retrying in #{@retry_interval_minutes} minutes...")
+        Process.send_after(self(), :update_filter, @retry_interval)
+        {:noreply, state}
+    end
+  end
+
+  @impl GenServer
+  def handle_info({ref, _result}, state) do
+    Process.demonitor(ref, [:flush])
+    {:noreply, state}
+  end
+
+  @impl GenServer
+  def terminate(
+        _reason,
+        %__MODULE__{
+          json_rpc_named_arguments: json_rpc_named_arguments
+        } = state
+      ) do
+    if state.filter_id do
+      Logger.info("Optimism deposits fetcher is terminating, uninstalling filter")
+      uninstall_filter(state.filter_id, json_rpc_named_arguments)
+    end
+  end
+
+  @impl GenServer
+  def terminate(:normal, _state) do
+    :ok
+  end
+
+  defp handle_new_logs(logs, json_rpc_named_arguments) do
+    {reorgs, logs_to_parse, min_block, max_block, cnt} =
+      logs
+      |> Enum.reduce({MapSet.new(), [], nil, 0, 0}, fn
+        %{"removed" => true, "blockNumber" => block_number}, {reorgs, logs_to_parse, min_block, max_block, cnt} ->
+          {MapSet.put(reorgs, block_number), logs_to_parse, min_block, max_block, cnt}
+
+        %{"blockNumber" => block_number} = log, {reorgs, logs_to_parse, min_block, max_block, cnt} ->
+          {
+            reorgs,
+            [log | logs_to_parse],
+            min(min_block, quantity_to_integer(block_number)),
+            max(max_block, quantity_to_integer(block_number)),
+            cnt + 1
+          }
+      end)
+
+    handle_reorgs(reorgs)
+
+    unless Enum.empty?(logs_to_parse) do
+      deposits = events_to_deposits(logs_to_parse, json_rpc_named_arguments)
+      {:ok, _imported} = Chain.import(%{optimism_deposits: %{params: deposits}, timeout: :infinity})
+
+      Publisher.broadcast(%{optimism_deposits: deposits}, :realtime)
+
+      Helper.log_blocks_chunk_handling(
+        min_block,
+        max_block,
+        min_block,
+        max_block,
+        "#{cnt} TransactionDeposited event(s)",
+        :L1
+      )
+    end
+  end
+
+  defp events_to_deposits(logs, json_rpc_named_arguments) do
+    timestamps =
+      logs
+      |> Enum.reduce(MapSet.new(), fn %{"blockNumber" => block_number_quantity}, acc ->
+        block_number = quantity_to_integer(block_number_quantity)
+        MapSet.put(acc, block_number)
+      end)
+      |> MapSet.to_list()
+      |> get_block_timestamps_by_numbers(json_rpc_named_arguments)
+      |> case do
+        {:ok, timestamps} ->
+          timestamps
+
+        {:error, error} ->
+          Logger.error(
+            "Failed to get L1 block timestamps for deposits due to #{inspect(error)}. Timestamps will be set to null."
+          )
+
+          %{}
+      end
+
+    Enum.map(logs, &event_to_deposit(&1, timestamps))
+  end
+
+  defp event_to_deposit(
+         %{
+           "blockHash" => "0x" <> stripped_block_hash,
+           "blockNumber" => block_number_quantity,
+           "transactionHash" => transaction_hash,
+           "logIndex" => "0x" <> stripped_log_index,
+           "topics" => [_, @address_prefix <> from_stripped, @address_prefix <> to_stripped, _],
+           "data" => opaque_data
+         },
+         timestamps
+       ) do
+    {_, prefixed_block_hash} = (String.pad_leading("", 64, "0") <> stripped_block_hash) |> String.split_at(-64)
+    {_, prefixed_log_index} = (String.pad_leading("", 64, "0") <> stripped_log_index) |> String.split_at(-64)
+
+    deposit_id_hash =
+      "#{prefixed_block_hash}#{prefixed_log_index}"
+      |> Base.decode16!(case: :mixed)
+      |> ExKeccak.hash_256()
+      |> Base.encode16(case: :lower)
+
+    source_hash =
+      "#{String.pad_leading("", 64, "0")}#{deposit_id_hash}"
+      |> Base.decode16!(case: :mixed)
+      |> ExKeccak.hash_256()
+
+    [
+      <<
+        msg_value::binary-size(32),
+        value::binary-size(32),
+        gas_limit::binary-size(8),
+        is_creation::binary-size(1),
+        data::binary
+      >>
+    ] = decode_data(opaque_data, [:bytes])
+
+    rlp_encoded =
+      ExRLP.encode(
+        [
+          source_hash,
+          from_stripped |> Base.decode16!(case: :mixed),
+          to_stripped |> Base.decode16!(case: :mixed),
+          msg_value |> String.replace_leading(<<0>>, <<>>),
+          value |> String.replace_leading(<<0>>, <<>>),
+          gas_limit |> String.replace_leading(<<0>>, <<>>),
+          is_creation |> String.replace_leading(<<0>>, <<>>),
+          data
+        ],
+        encoding: :hex
+      )
+
+    l2_tx_hash =
+      "0x" <> ("7e#{rlp_encoded}" |> Base.decode16!(case: :mixed) |> ExKeccak.hash_256() |> Base.encode16(case: :lower))
+
+    block_number = quantity_to_integer(block_number_quantity)
+
+    %{
+      l1_block_number: block_number,
+      l1_block_timestamp: Map.get(timestamps, block_number),
+      l1_transaction_hash: transaction_hash,
+      l1_transaction_origin: "0x" <> from_stripped,
+      l2_transaction_hash: l2_tx_hash
+    }
+  end
+
+  defp handle_reorgs(reorgs) do
+    if MapSet.size(reorgs) > 0 do
+      Logger.warning("L1 reorg detected. The following L1 blocks were removed: #{inspect(MapSet.to_list(reorgs))}")
+
+      {deleted_count, _} = Repo.delete_all(from(d in Deposit, where: d.l1_block_number in ^reorgs))
+
+      if deleted_count > 0 do
+        Logger.warning(
+          "As L1 reorg was detected, all affected rows were removed from the op_deposits table. Number of removed rows: #{deleted_count}."
+        )
+      end
+    end
+  end
+
+  defp get_block_timestamps_by_numbers(numbers, json_rpc_named_arguments, retries \\ 3) do
+    id_to_params =
+      numbers
+      |> Stream.map(fn number -> %{number: number} end)
+      |> Stream.with_index()
+      |> Enum.into(%{}, fn {params, id} -> {id, params} end)
+
+    request = Blocks.requests(id_to_params, &ByNumber.request(&1, false))
+    error_message = &"Cannot fetch timestamps for blocks #{numbers}. Error: #{inspect(&1)}"
+
+    case Optimism.repeated_request(request, error_message, json_rpc_named_arguments, retries) do
+      {:ok, response} ->
+        %Blocks{blocks_params: blocks_params} = Blocks.from_responses(response, id_to_params)
+
+        {:ok,
+         blocks_params
+         |> Enum.reduce(%{}, fn %{number: number, timestamp: timestamp}, acc -> Map.put_new(acc, number, timestamp) end)}
+
+      err ->
+        err
+    end
+  end
+
+  defp get_new_filter(from_block, to_block, address, topic0, json_rpc_named_arguments, retries \\ 3) do
+    processed_from_block = if is_integer(from_block), do: integer_to_quantity(from_block), else: from_block
+    processed_to_block = if is_integer(to_block), do: integer_to_quantity(to_block), else: to_block
+
+    req =
+      request(%{
+        id: 0,
+        method: "eth_newFilter",
+        params: [
+          %{
+            fromBlock: processed_from_block,
+            toBlock: processed_to_block,
+            address: address,
+            topics: [topic0]
+          }
+        ]
+      })
+
+    error_message = &"Cannot create new log filter. Error: #{inspect(&1)}"
+
+    Optimism.repeated_request(req, error_message, json_rpc_named_arguments, retries)
+  end
+
+  defp get_filter_changes(filter_id, json_rpc_named_arguments, retries \\ 3) do
+    req =
+      request(%{
+        id: 0,
+        method: "eth_getFilterChanges",
+        params: [filter_id]
+      })
+
+    error_message = &"Cannot fetch filter changes. Error: #{inspect(&1)}"
+
+    case Optimism.repeated_request(req, error_message, json_rpc_named_arguments, retries) do
+      {:error, %{code: _, message: "filter not found"}} -> {:error, :filter_not_found}
+      response -> response
+    end
+  end
+
+  defp uninstall_filter(filter_id, json_rpc_named_arguments, retries \\ 1) do
+    req =
+      request(%{
+        id: 0,
+        method: "eth_getFilterChanges",
+        params: [filter_id]
+      })
+
+    error_message = &"Cannot uninstall filter. Error: #{inspect(&1)}"
+
+    Optimism.repeated_request(req, error_message, json_rpc_named_arguments, retries)
+  end
+
+  defp get_last_l1_item do
+    Deposit.last_deposit_l1_block_number_query()
+    |> Repo.one()
+    |> Kernel.||({0, nil})
+  end
+end
diff --git a/apps/indexer/lib/indexer/fetcher/optimism/output_root.ex b/apps/indexer/lib/indexer/fetcher/optimism/output_root.ex
new file mode 100644
index 0000000000..ca35b71a83
--- /dev/null
+++ b/apps/indexer/lib/indexer/fetcher/optimism/output_root.ex
@@ -0,0 +1,187 @@
+defmodule Indexer.Fetcher.Optimism.OutputRoot do
+  @moduledoc """
+  Fills op_output_roots DB table.
+  """
+
+  use GenServer
+  use Indexer.Fetcher
+
+  require Logger
+
+  import Ecto.Query
+
+  import EthereumJSONRPC, only: [quantity_to_integer: 1]
+
+  alias Explorer.{Chain, Helper, Repo}
+  alias Explorer.Chain.Optimism.OutputRoot
+  alias Indexer.Fetcher.Optimism
+  alias Indexer.Helper, as: IndexerHelper
+
+  @fetcher_name :optimism_output_roots
+
+  # 32-byte signature of the event OutputProposed(bytes32 indexed outputRoot, uint256 indexed l2OutputIndex, uint256 indexed l2BlockNumber, uint256 l1Timestamp)
+  @output_proposed_event "0xa7aaf2512769da4e444e3de247be2564225c2e7a8f74cfe528e46e17d24868e2"
+
+  def child_spec(start_link_arguments) do
+    spec = %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, start_link_arguments},
+      restart: :transient,
+      type: :worker
+    }
+
+    Supervisor.child_spec(spec, [])
+  end
+
+  def start_link(args, gen_server_options \\ []) do
+    GenServer.start_link(__MODULE__, args, Keyword.put_new(gen_server_options, :name, __MODULE__))
+  end
+
+  @impl GenServer
+  def init(_args) do
+    {:ok, %{}, {:continue, :ok}}
+  end
+
+  @impl GenServer
+  def handle_continue(:ok, _state) do
+    Logger.metadata(fetcher: @fetcher_name)
+
+    env = Application.get_all_env(:indexer)[__MODULE__]
+
+    Optimism.init_continue(env, env[:output_oracle], __MODULE__)
+  end
+
+  @impl GenServer
+  def handle_info(
+        :continue,
+        %{
+          contract_address: output_oracle,
+          block_check_interval: block_check_interval,
+          start_block: start_block,
+          end_block: end_block,
+          json_rpc_named_arguments: json_rpc_named_arguments
+        } = state
+      ) do
+    # credo:disable-for-next-line
+    time_before = Timex.now()
+
+    chunks_number = ceil((end_block - start_block + 1) / Optimism.get_logs_range_size())
+    chunk_range = Range.new(0, max(chunks_number - 1, 0), 1)
+
+    last_written_block =
+      chunk_range
+      |> Enum.reduce_while(start_block - 1, fn current_chunk, _ ->
+        chunk_start = start_block + Optimism.get_logs_range_size() * current_chunk
+        chunk_end = min(chunk_start + Optimism.get_logs_range_size() - 1, end_block)
+
+        if chunk_end >= chunk_start do
+          IndexerHelper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L1)
+
+          {:ok, result} =
+            Optimism.get_logs(
+              chunk_start,
+              chunk_end,
+              output_oracle,
+              @output_proposed_event,
+              json_rpc_named_arguments,
+              IndexerHelper.infinite_retries_number()
+            )
+
+          output_roots = events_to_output_roots(result)
+
+          {:ok, _} =
+            Chain.import(%{
+              optimism_output_roots: %{params: output_roots},
+              timeout: :infinity
+            })
+
+          IndexerHelper.log_blocks_chunk_handling(
+            chunk_start,
+            chunk_end,
+            start_block,
+            end_block,
+            "#{Enum.count(output_roots)} OutputProposed event(s)",
+            :L1
+          )
+        end
+
+        reorg_block = Optimism.reorg_block_pop(@fetcher_name)
+
+        if !is_nil(reorg_block) && reorg_block > 0 do
+          {deleted_count, _} = Repo.delete_all(from(r in OutputRoot, where: r.l1_block_number >= ^reorg_block))
+
+          log_deleted_rows_count(reorg_block, deleted_count)
+
+          {:halt, if(reorg_block <= chunk_end, do: reorg_block - 1, else: chunk_end)}
+        else
+          {:cont, chunk_end}
+        end
+      end)
+
+    new_start_block = last_written_block + 1
+
+    {:ok, new_end_block} =
+      Optimism.get_block_number_by_tag("latest", json_rpc_named_arguments, IndexerHelper.infinite_retries_number())
+
+    delay =
+      if new_end_block == last_written_block do
+        # there is no new block, so wait for some time to let the chain issue the new block
+        max(block_check_interval - Timex.diff(Timex.now(), time_before, :milliseconds), 0)
+      else
+        0
+      end
+
+    Process.send_after(self(), :continue, delay)
+
+    {:noreply, %{state | start_block: new_start_block, end_block: new_end_block}}
+  end
+
+  @impl GenServer
+  def handle_info({:chain_event, :optimism_reorg_block, :realtime, block_number}, state) do
+    Optimism.reorg_block_push(@fetcher_name, block_number)
+    {:noreply, state}
+  end
+
+  @impl GenServer
+  def handle_info({ref, _result}, state) do
+    Process.demonitor(ref, [:flush])
+    {:noreply, state}
+  end
+
+  defp events_to_output_roots(events) do
+    Enum.map(events, fn event ->
+      [l1_timestamp] = Helper.decode_data(event["data"], [{:uint, 256}])
+      {:ok, l1_timestamp} = DateTime.from_unix(l1_timestamp)
+
+      %{
+        l2_output_index: quantity_to_integer(Enum.at(event["topics"], 2)),
+        l2_block_number: quantity_to_integer(Enum.at(event["topics"], 3)),
+        l1_transaction_hash: event["transactionHash"],
+        l1_timestamp: l1_timestamp,
+        l1_block_number: quantity_to_integer(event["blockNumber"]),
+        output_root: Enum.at(event["topics"], 1)
+      }
+    end)
+  end
+
+  defp log_deleted_rows_count(reorg_block, count) do
+    if count > 0 do
+      Logger.warning(
+        "As L1 reorg was detected, all rows with l1_block_number >= #{reorg_block} were removed from the op_output_roots table. Number of removed rows: #{count}."
+      )
+    end
+  end
+
+  def get_last_l1_item do
+    query =
+      from(root in OutputRoot,
+        select: {root.l1_block_number, root.l1_transaction_hash},
+        order_by: [desc: root.l2_output_index],
+        limit: 1
+      )
+
+    query
+    |> Repo.one()
+    |> Kernel.||({0, nil})
+  end
+end
diff --git a/apps/indexer/lib/indexer/fetcher/optimism/txn_batch.ex b/apps/indexer/lib/indexer/fetcher/optimism/txn_batch.ex
new file mode 100644
index 0000000000..01bc603cae
--- /dev/null
+++ b/apps/indexer/lib/indexer/fetcher/optimism/txn_batch.ex
@@ -0,0 +1,850 @@
+defmodule Indexer.Fetcher.Optimism.TxnBatch do
+  @moduledoc """
+  Fills op_transaction_batches DB table.
+  """
+
+  use GenServer
+  use Indexer.Fetcher
+
+  require Logger
+
+  import Ecto.Query
+
+  import EthereumJSONRPC, only: [fetch_blocks_by_range: 2, json_rpc: 2, quantity_to_integer: 1]
+
+  import Explorer.Helper, only: [parse_integer: 1]
+
+  alias EthereumJSONRPC.Block.ByHash
+  alias EthereumJSONRPC.Blocks
+  alias Explorer.{Chain, Repo}
+  alias Explorer.Chain.Block
+  alias Explorer.Chain.Events.Subscriber
+  alias Explorer.Chain.Optimism.FrameSequence
+  alias Explorer.Chain.Optimism.TxnBatch, as: OptimismTxnBatch
+  alias Indexer.Fetcher.Optimism
+  alias Indexer.Helper
+  alias Varint.LEB128
+
+  @fetcher_name :optimism_txn_batches
+
+  # Optimism chain block time is a constant (2 seconds)
+  @op_chain_block_time 2
+
+  def child_spec(start_link_arguments) do
+    spec = %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, start_link_arguments},
+      restart: :transient,
+      type: :worker
+    }
+
+    Supervisor.child_spec(spec, [])
+  end
+
+  def start_link(args, gen_server_options \\ []) do
+    GenServer.start_link(__MODULE__, args, Keyword.put_new(gen_server_options, :name, __MODULE__))
+  end
+
+  @impl GenServer
+  def init(args) do
+    {:ok, %{json_rpc_named_arguments_l2: args[:json_rpc_named_arguments]}, {:continue, nil}}
+  end
+
+  @impl GenServer
+  def handle_continue(_, state) do
+    Logger.metadata(fetcher: @fetcher_name)
+    # two seconds pause needed to avoid exceeding Supervisor restart intensity when DB issues
+    Process.send_after(self(), :init_with_delay, 2000)
+    {:noreply, state}
+  end
+
+  @impl GenServer
+  def handle_info(:init_with_delay, %{json_rpc_named_arguments_l2: json_rpc_named_arguments_l2} = state) do
+    env = Application.get_all_env(:indexer)[__MODULE__]
+
+    with {:start_block_l1_undefined, false} <- {:start_block_l1_undefined, is_nil(env[:start_block_l1])},
+         {:genesis_block_l2_invalid, false} <-
+           {:genesis_block_l2_invalid, is_nil(env[:genesis_block_l2]) or env[:genesis_block_l2] < 0},
+         {:reorg_monitor_started, true} <- {:reorg_monitor_started, !is_nil(Process.whereis(Indexer.Fetcher.Optimism))},
+         optimism_l1_rpc = Application.get_all_env(:indexer)[Indexer.Fetcher.Optimism][:optimism_l1_rpc],
+         {:rpc_l1_undefined, false} <- {:rpc_l1_undefined, is_nil(optimism_l1_rpc)},
+         {:batch_inbox_valid, true} <- {:batch_inbox_valid, Helper.address_correct?(env[:batch_inbox])},
+         {:batch_submitter_valid, true} <- {:batch_submitter_valid, Helper.address_correct?(env[:batch_submitter])},
+         start_block_l1 = parse_integer(env[:start_block_l1]),
+         false <- is_nil(start_block_l1),
+         true <- start_block_l1 > 0,
+         chunk_size = parse_integer(env[:blocks_chunk_size]),
+         {:chunk_size_valid, true} <- {:chunk_size_valid, !is_nil(chunk_size) && chunk_size > 0},
+         json_rpc_named_arguments = Optimism.json_rpc_named_arguments(optimism_l1_rpc),
+         {last_l1_block_number, last_l1_transaction_hash, last_l1_tx} = get_last_l1_item(json_rpc_named_arguments),
+         {:start_block_l1_valid, true} <-
+           {:start_block_l1_valid, start_block_l1 <= last_l1_block_number || last_l1_block_number == 0},
+         {:l1_tx_not_found, false} <- {:l1_tx_not_found, !is_nil(last_l1_transaction_hash) && is_nil(last_l1_tx)},
+         {:ok, block_check_interval, last_safe_block} <- Optimism.get_block_check_interval(json_rpc_named_arguments) do
+      start_block = max(start_block_l1, last_l1_block_number)
+
+      Subscriber.to(:optimism_reorg_block, :realtime)
+
+      Process.send(self(), :continue, [])
+
+      {:noreply,
+       %{
+         batch_inbox: String.downcase(env[:batch_inbox]),
+         batch_submitter: String.downcase(env[:batch_submitter]),
+         block_check_interval: block_check_interval,
+         start_block: start_block,
+         end_block: last_safe_block,
+         chunk_size: chunk_size,
+         incomplete_channels: %{},
+         genesis_block_l2: env[:genesis_block_l2],
+         json_rpc_named_arguments: json_rpc_named_arguments,
+         json_rpc_named_arguments_l2: json_rpc_named_arguments_l2
+       }}
+    else
+      {:start_block_l1_undefined, true} ->
+        # the process shouldn't start if the start block is not defined
+        {:stop, :normal, state}
+
+      {:genesis_block_l2_invalid, true} ->
+        Logger.error("L2 genesis block number is undefined or invalid.")
+        {:stop, :normal, state}
+
+      {:reorg_monitor_started, false} ->
+        Logger.error("Cannot start this process as reorg monitor in Indexer.Fetcher.Optimism is not started.")
+        {:stop, :normal, state}
+
+      {:rpc_l1_undefined, true} ->
+        Logger.error("L1 RPC URL is not defined.")
+        {:stop, :normal, state}
+
+      {:batch_inbox_valid, false} ->
+        Logger.error("Batch Inbox address is invalid or not defined.")
+        {:stop, :normal, state}
+
+      {:batch_submitter_valid, false} ->
+        Logger.error("Batch Submitter address is invalid or not defined.")
+        {:stop, :normal, state}
+
+      {:start_block_l1_valid, false} ->
+        Logger.error("Invalid L1 Start Block value. Please, check the value and op_transaction_batches table.")
+        {:stop, :normal, state}
+
+      {:chunk_size_valid, false} ->
+        Logger.error("Invalid blocks chunk size value.")
+        {:stop, :normal, state}
+
+      {:error, error_data} ->
+        Logger.error("Cannot get block timestamp by its number due to RPC error: #{inspect(error_data)}")
+
+        {:stop, :normal, state}
+
+      {:l1_tx_not_found, true} ->
+        Logger.error(
+          "Cannot find last L1 transaction from RPC by its hash. Probably, there was a reorg on L1 chain. Please, check op_transaction_batches table."
+        )
+
+        {:stop, :normal, state}
+
+      _ ->
+        Logger.error("Batch Start Block is invalid or zero.")
+        {:stop, :normal, state}
+    end
+  end
+
+  @impl GenServer
+  def handle_info(
+        :continue,
+        %{
+          batch_inbox: batch_inbox,
+          batch_submitter: batch_submitter,
+          block_check_interval: block_check_interval,
+          start_block: start_block,
+          end_block: end_block,
+          chunk_size: chunk_size,
+          incomplete_channels: incomplete_channels,
+          genesis_block_l2: genesis_block_l2,
+          json_rpc_named_arguments: json_rpc_named_arguments,
+          json_rpc_named_arguments_l2: json_rpc_named_arguments_l2
+        } = state
+      ) do
+    time_before = Timex.now()
+
+    chunks_number = ceil((end_block - start_block + 1) / chunk_size)
+    chunk_range = Range.new(0, max(chunks_number - 1, 0), 1)
+
+    {last_written_block, new_incomplete_channels} =
+      chunk_range
+      |> Enum.reduce_while({start_block - 1, incomplete_channels}, fn current_chunk, {_, incomplete_channels_acc} ->
+        chunk_start = start_block + chunk_size * current_chunk
+        chunk_end = min(chunk_start + chunk_size - 1, end_block)
+
+        new_incomplete_channels =
+          if chunk_end >= chunk_start do
+            Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L1)
+
+            {:ok, new_incomplete_channels, batches, sequences} =
+              get_txn_batches(
+                Range.new(chunk_start, chunk_end),
+                batch_inbox,
+                batch_submitter,
+                genesis_block_l2,
+                incomplete_channels_acc,
+                json_rpc_named_arguments,
+                json_rpc_named_arguments_l2,
+                Helper.infinite_retries_number()
+              )
+
+            {batches, sequences} = remove_duplicates(batches, sequences)
+
+            {:ok, _} =
+              Chain.import(%{
+                optimism_frame_sequences: %{params: sequences},
+                optimism_txn_batches: %{params: batches},
+                timeout: :infinity
+              })
+
+            Helper.log_blocks_chunk_handling(
+              chunk_start,
+              chunk_end,
+              start_block,
+              end_block,
+              "#{Enum.count(sequences)} batch(es) containing #{Enum.count(batches)} block(s).",
+              :L1
+            )
+
+            new_incomplete_channels
+          else
+            incomplete_channels_acc
+          end
+
+        reorg_block = Optimism.reorg_block_pop(@fetcher_name)
+
+        if !is_nil(reorg_block) && reorg_block > 0 do
+          new_incomplete_channels = handle_l1_reorg(reorg_block, new_incomplete_channels)
+          {:halt, {if(reorg_block <= chunk_end, do: reorg_block - 1, else: chunk_end), new_incomplete_channels}}
+        else
+          {:cont, {chunk_end, new_incomplete_channels}}
+        end
+      end)
+
+    new_start_block = last_written_block + 1
+
+    {:ok, new_end_block} =
+      Optimism.get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
+
+    delay =
+      if new_end_block == last_written_block do
+        # there is no new block, so wait for some time to let the chain issue the new block
+        max(block_check_interval - Timex.diff(Timex.now(), time_before, :milliseconds), 0)
+      else
+        0
+      end
+
+    Process.send_after(self(), :continue, delay)
+
+    {:noreply,
+     %{
+       state
+       | start_block: new_start_block,
+         end_block: new_end_block,
+         incomplete_channels: new_incomplete_channels
+     }}
+  end
+
+  @impl GenServer
+  def handle_info({:chain_event, :optimism_reorg_block, :realtime, block_number}, state) do
+    Optimism.reorg_block_push(@fetcher_name, block_number)
+    {:noreply, state}
+  end
+
+  @impl GenServer
+  def handle_info({ref, _result}, state) do
+    Process.demonitor(ref, [:flush])
+    {:noreply, state}
+  end
+
+  defp get_block_numbers_by_hashes([], _json_rpc_named_arguments_l2) do
+    %{}
+  end
+
+  defp get_block_numbers_by_hashes(hashes, json_rpc_named_arguments_l2) do
+    query =
+      from(
+        b in Block,
+        select: {b.hash, b.number},
+        where: b.hash in ^hashes
+      )
+
+    number_by_hash =
+      query
+      |> Repo.all(timeout: :infinity)
+      |> Enum.reduce(%{}, fn {hash, number}, acc ->
+        Map.put(acc, hash.bytes, number)
+      end)
+
+    requests =
+      hashes
+      |> Enum.filter(fn hash -> is_nil(Map.get(number_by_hash, hash)) end)
+      |> Enum.with_index()
+      |> Enum.map(fn {hash, id} ->
+        ByHash.request(%{hash: "0x" <> Base.encode16(hash, case: :lower), id: id}, false)
+      end)
+
+    chunk_size = 50
+    chunks_number = ceil(Enum.count(requests) / chunk_size)
+    chunk_range = Range.new(0, chunks_number - 1, 1)
+
+    chunk_range
+    |> Enum.reduce([], fn current_chunk, acc ->
+      {:ok, resp} =
+        requests
+        |> Enum.slice(chunk_size * current_chunk, chunk_size)
+        |> json_rpc(json_rpc_named_arguments_l2)
+
+      acc ++ resp
+    end)
+    |> Enum.map(fn %{result: result} -> result end)
+    |> Enum.reduce(number_by_hash, fn block, acc ->
+      if is_nil(block) do
+        acc
+      else
+        block_number = quantity_to_integer(Map.get(block, "number"))
+        "0x" <> hash = Map.get(block, "hash")
+        {:ok, hash} = Base.decode16(hash, case: :lower)
+        Map.put(acc, hash, block_number)
+      end
+    end)
+  end
+
+  defp get_block_timestamp_by_number(block_number, blocks_params) do
+    block = Enum.find(blocks_params, %{timestamp: nil}, fn b -> b.number == block_number end)
+    block.timestamp
+  end
+
+  defp get_last_l1_item(json_rpc_named_arguments) do
+    l1_transaction_hashes =
+      Repo.one(
+        from(
+          tb in OptimismTxnBatch,
+          inner_join: fs in FrameSequence,
+          on: fs.id == tb.frame_sequence_id,
+          select: fs.l1_transaction_hashes,
+          order_by: [desc: tb.l2_block_number],
+          limit: 1
+        )
+      )
+
+    last_l1_transaction_hash =
+      if is_nil(l1_transaction_hashes) do
+        nil
+      else
+        List.last(l1_transaction_hashes)
+      end
+
+    if is_nil(last_l1_transaction_hash) do
+      {0, nil, nil}
+    else
+      {:ok, last_l1_tx} = Optimism.get_transaction_by_hash(last_l1_transaction_hash, json_rpc_named_arguments)
+      last_l1_block_number = quantity_to_integer(Map.get(last_l1_tx || %{}, "blockNumber", 0))
+      {last_l1_block_number, last_l1_transaction_hash, last_l1_tx}
+    end
+  end
+
+  defp get_txn_batches(
+         block_range,
+         batch_inbox,
+         batch_submitter,
+         genesis_block_l2,
+         incomplete_channels,
+         json_rpc_named_arguments,
+         json_rpc_named_arguments_l2,
+         retries_left
+       ) do
+    case fetch_blocks_by_range(block_range, json_rpc_named_arguments) do
+      {:ok, %Blocks{transactions_params: transactions_params, blocks_params: blocks_params, errors: []}} ->
+        transactions_params
+        |> txs_filter(batch_submitter, batch_inbox)
+        |> get_txn_batches_inner(
+          blocks_params,
+          genesis_block_l2,
+          incomplete_channels,
+          json_rpc_named_arguments_l2
+        )
+
+      {_, message_or_errors} ->
+        message =
+          case message_or_errors do
+            %Blocks{errors: errors} -> errors
+            msg -> msg
+          end
+
+        retries_left = retries_left - 1
+
+        error_message = "Cannot fetch blocks #{inspect(block_range)}. Error(s): #{inspect(message)}"
+
+        if retries_left <= 0 do
+          Logger.error(error_message)
+          {:error, message}
+        else
+          Logger.error("#{error_message} Retrying...")
+          :timer.sleep(3000)
+
+          get_txn_batches(
+            block_range,
+            batch_inbox,
+            batch_submitter,
+            genesis_block_l2,
+            incomplete_channels,
+            json_rpc_named_arguments,
+            json_rpc_named_arguments_l2,
+            retries_left
+          )
+        end
+    end
+  end
+
+  defp get_txn_batches_inner(
+         transactions_filtered,
+         blocks_params,
+         genesis_block_l2,
+         incomplete_channels,
+         json_rpc_named_arguments_l2
+       ) do
+    transactions_filtered
+    |> Enum.reduce({:ok, incomplete_channels, [], []}, fn t, {_, incomplete_channels_acc, batches_acc, sequences_acc} ->
+      frame = input_to_frame(t.input)
+
+      channel = Map.get(incomplete_channels_acc, frame.channel_id, %{frames: %{}})
+
+      channel_frames =
+        Map.put(channel.frames, frame.number, %{
+          data: frame.data,
+          is_last: frame.is_last,
+          block_number: t.block_number,
+          tx_hash: t.hash
+        })
+
+      l1_timestamp =
+        if frame.is_last do
+          get_block_timestamp_by_number(t.block_number, blocks_params)
+        else
+          Map.get(channel, :l1_timestamp)
+        end
+
+      channel =
+        channel
+        |> Map.put_new(:id, frame.channel_id)
+        |> Map.put(:frames, channel_frames)
+        |> Map.put(:timestamp, DateTime.utc_now())
+        |> Map.put(:l1_timestamp, l1_timestamp)
+
+      if channel_complete?(channel) do
+        handle_channel(
+          channel,
+          incomplete_channels_acc,
+          batches_acc,
+          sequences_acc,
+          genesis_block_l2,
+          json_rpc_named_arguments_l2
+        )
+      else
+        {:ok, Map.put(incomplete_channels_acc, frame.channel_id, channel), batches_acc, sequences_acc}
+      end
+    end)
+  end
+
+  defp handle_channel(
+         channel,
+         incomplete_channels_acc,
+         batches_acc,
+         sequences_acc,
+         genesis_block_l2,
+         json_rpc_named_arguments_l2
+       ) do
+    frame_sequence_last = List.first(sequences_acc)
+    frame_sequence_id = next_frame_sequence_id(frame_sequence_last)
+
+    {bytes, l1_transaction_hashes} =
+      0..(Enum.count(channel.frames) - 1)
+      |> Enum.reduce({<<>>, []}, fn frame_number, {bytes_acc, tx_hashes_acc} ->
+        frame = Map.get(channel.frames, frame_number)
+        {bytes_acc <> frame.data, [frame.tx_hash | tx_hashes_acc]}
+      end)
+
+    batches_parsed =
+      parse_frame_sequence(
+        bytes,
+        frame_sequence_id,
+        channel.l1_timestamp,
+        genesis_block_l2,
+        json_rpc_named_arguments_l2
+      )
+
+    if batches_parsed == :error do
+      Logger.error("Cannot parse frame sequence from these L1 transaction(s): #{inspect(l1_transaction_hashes)}")
+    end
+
+    seq = %{
+      id: frame_sequence_id,
+      l1_transaction_hashes: Enum.reverse(l1_transaction_hashes),
+      l1_timestamp: channel.l1_timestamp
+    }
+
+    new_incomplete_channels_acc =
+      incomplete_channels_acc
+      |> Map.delete(channel.id)
+      |> remove_expired_channels()
+
+    if batches_parsed == :error or Enum.empty?(batches_parsed) do
+      {:ok, new_incomplete_channels_acc, batches_acc, sequences_acc}
+    else
+      {:ok, new_incomplete_channels_acc, batches_acc ++ batches_parsed, [seq | sequences_acc]}
+    end
+  end
+
+  defp handle_l1_reorg(reorg_block, incomplete_channels) do
+    incomplete_channels
+    |> Enum.reduce(incomplete_channels, fn {channel_id, %{frames: frames} = channel}, acc ->
+      updated_frames =
+        frames
+        |> Enum.filter(fn {_frame_number, %{block_number: block_number}} ->
+          block_number < reorg_block
+        end)
+        |> Enum.into(%{})
+
+      if Enum.empty?(updated_frames) do
+        Map.delete(acc, channel_id)
+      else
+        Map.put(acc, channel_id, Map.put(channel, :frames, updated_frames))
+      end
+    end)
+  end
+
+  @doc """
+    Removes rows from op_transaction_batches and op_frame_sequences tables written beginning from the L2 reorg block.
+  """
+  @spec handle_l2_reorg(non_neg_integer()) :: any()
+  def handle_l2_reorg(reorg_block) do
+    frame_sequence_ids =
+      Repo.all(
+        from(
+          tb in OptimismTxnBatch,
+          select: tb.frame_sequence_id,
+          where: tb.l2_block_number >= ^reorg_block
+        ),
+        timeout: :infinity
+      )
+
+    {deleted_count, _} = Repo.delete_all(from(tb in OptimismTxnBatch, where: tb.l2_block_number >= ^reorg_block))
+
+    Repo.delete_all(from(fs in FrameSequence, where: fs.id in ^frame_sequence_ids))
+
+    if deleted_count > 0 do
+      Logger.warning(
+        "As L2 reorg was detected, all rows with l2_block_number >= #{reorg_block} were removed from the op_transaction_batches table. Number of removed rows: #{deleted_count}."
+      )
+    end
+  end
+
+  defp channel_complete?(channel) do
+    last_frame_number =
+      channel.frames
+      |> Map.keys()
+      |> Enum.max()
+
+    Map.get(channel.frames, last_frame_number).is_last and last_frame_number == Enum.count(channel.frames) - 1
+  end
+
+  defp remove_expired_channels(channels_map) do
+    now = DateTime.utc_now()
+
+    Enum.reduce(channels_map, channels_map, fn {channel_id, %{timestamp: timestamp}}, channels_acc ->
+      if DateTime.diff(now, timestamp) >= 86400 do
+        Map.delete(channels_acc, channel_id)
+      else
+        channels_acc
+      end
+    end)
+  end
+
+  defp input_to_frame("0x" <> input) do
+    input_binary = Base.decode16!(input, case: :mixed)
+
+    # the structure of the input is as follows:
+    #
+    # input = derivation_version ++ channel_id ++ frame_number ++ frame_data_length ++ frame_data ++ is_last
+    #
+    # derivation_version = uint8
+    # channel_id         = bytes16
+    # frame_number       = uint16
+    # frame_data_length  = uint32
+    # frame_data         = bytes
+    # is_last            = bool (uint8)
+
+    derivation_version_length = 1
+    channel_id_length = 16
+    frame_number_size = 2
+    frame_data_length_size = 4
+    is_last_size = 1
+
+    # the first byte must be zero (so called Derivation Version)
+    [0] = :binary.bin_to_list(binary_part(input_binary, 0, derivation_version_length))
+
+    # channel id has 16 bytes
+    channel_id = binary_part(input_binary, derivation_version_length, channel_id_length)
+
+    # frame number consists of 2 bytes
+    frame_number_offset = derivation_version_length + channel_id_length
+    frame_number = :binary.decode_unsigned(binary_part(input_binary, frame_number_offset, frame_number_size))
+
+    # frame data length consists of 4 bytes
+    frame_data_length_offset = frame_number_offset + frame_number_size
+
+    frame_data_length =
+      :binary.decode_unsigned(binary_part(input_binary, frame_data_length_offset, frame_data_length_size))
+
+    input_length_must_be =
+      derivation_version_length + channel_id_length + frame_number_size + frame_data_length_size + frame_data_length +
+        is_last_size
+
+    input_length_current = byte_size(input_binary)
+
+    if input_length_current == input_length_must_be do
+      # frame data is a byte array of frame_data_length size
+      frame_data_offset = frame_data_length_offset + frame_data_length_size
+      frame_data = binary_part(input_binary, frame_data_offset, frame_data_length)
+
+      # is_last is 1-byte item
+      is_last_offset = frame_data_offset + frame_data_length
+      is_last = :binary.decode_unsigned(binary_part(input_binary, is_last_offset, is_last_size)) > 0
+
+      %{number: frame_number, data: frame_data, is_last: is_last, channel_id: channel_id}
+    else
+      # workaround to remove a leading extra byte
+      # for example, the case for Base Goerli batch L1 transaction: https://goerli.etherscan.io/tx/0xa43fa9da683a6157a114e3175a625b5aed85d8c573aae226768c58a924a17be0
+      input_to_frame("0x" <> Base.encode16(binary_part(input_binary, 1, input_length_current - 1)))
+    end
+  end
+
+  defp next_frame_sequence_id(last_known_sequence) when is_nil(last_known_sequence) do
+    last_known_id =
+      Repo.one(
+        from(
+          fs in FrameSequence,
+          select: fs.id,
+          order_by: [desc: fs.id],
+          limit: 1
+        )
+      )
+
+    if is_nil(last_known_id) do
+      1
+    else
+      last_known_id + 1
+    end
+  end
+
+  defp next_frame_sequence_id(last_known_sequence) do
+    last_known_sequence.id + 1
+  end
+
+  defp parse_frame_sequence(
+         bytes,
+         id,
+         l1_timestamp,
+         genesis_block_l2,
+         json_rpc_named_arguments_l2
+       ) do
+    uncompressed_bytes = zlib_decompress(bytes)
+
+    batches =
+      Enum.reduce_while(Stream.iterate(0, &(&1 + 1)), {uncompressed_bytes, []}, fn _i, {remainder, batch_acc} ->
+        try do
+          {decoded, new_remainder} = ExRLP.decode(remainder, stream: true)
+
+          <<version>> = binary_part(decoded, 0, 1)
+          content = binary_part(decoded, 1, byte_size(decoded) - 1)
+
+          new_batch_acc =
+            cond do
+              version == 0 ->
+                handle_v0_batch(content, id, l1_timestamp, batch_acc)
+
+              version <= 2 ->
+                # parsing the span batch
+                handle_v1_batch(content, id, l1_timestamp, genesis_block_l2, batch_acc)
+
+              true ->
+                Logger.error("Unsupported batch version ##{version}")
+                :error
+            end
+
+          if byte_size(new_remainder) > 0 and new_batch_acc != :error do
+            {:cont, {new_remainder, new_batch_acc}}
+          else
+            {:halt, new_batch_acc}
+          end
+        rescue
+          _ -> {:halt, :error}
+        end
+      end)
+
+    if batches == :error do
+      :error
+    else
+      batches = Enum.reverse(batches)
+
+      numbers_by_hashes =
+        batches
+        |> Stream.filter(&Map.has_key?(&1, :parent_hash))
+        |> Enum.map(fn batch -> batch.parent_hash end)
+        |> get_block_numbers_by_hashes(json_rpc_named_arguments_l2)
+
+      Enum.map(batches, &parent_hash_to_l2_block_number(&1, numbers_by_hashes))
+    end
+  end
+
+  defp handle_v0_batch(content, frame_sequence_id, l1_timestamp, batch_acc) do
+    content_decoded = ExRLP.decode(content)
+
+    batch = %{
+      parent_hash: Enum.at(content_decoded, 0),
+      frame_sequence_id: frame_sequence_id,
+      l1_timestamp: l1_timestamp
+    }
+
+    [batch | batch_acc]
+  end
+
+  defp handle_v1_batch(content, frame_sequence_id, l1_timestamp, genesis_block_l2, batch_acc) do
+    {rel_timestamp, content_remainder} = LEB128.decode(content)
+
+    # skip l1_origin_num
+    {_l1_origin_num, checks_and_payload} = LEB128.decode(content_remainder)
+
+    # skip `parent_check` and `l1_origin_check` fields (20 bytes each)
+    # and read the block count
+    {block_count, _} =
+      checks_and_payload
+      |> binary_part(40, byte_size(checks_and_payload) - 40)
+      |> LEB128.decode()
+
+    # the first and last L2 blocks in the span
+    span_start = div(rel_timestamp, @op_chain_block_time) + genesis_block_l2
+    span_end = span_start + block_count - 1
+
+    cond do
+      rem(rel_timestamp, @op_chain_block_time) != 0 ->
+        Logger.error("rel_timestamp is not divisible by #{@op_chain_block_time}. We ignore the span batch.")
+        batch_acc
+
+      block_count <= 0 ->
+        Logger.error("Empty span batch found. We ignore it.")
+        batch_acc
+
+      true ->
+        span_start..span_end
+        |> Enum.reduce(batch_acc, fn l2_block_number, batch_acc ->
+          [
+            %{
+              l2_block_number: l2_block_number,
+              frame_sequence_id: frame_sequence_id,
+              l1_timestamp: l1_timestamp
+            }
+            | batch_acc
+          ]
+        end)
+    end
+  end
+
+  defp parent_hash_to_l2_block_number(batch, numbers_by_hashes) do
+    if Map.has_key?(batch, :parent_hash) do
+      number = Map.get(numbers_by_hashes, batch.parent_hash)
+
+      batch
+      |> Map.put(:l2_block_number, number + 1)
+      |> Map.delete(:parent_hash)
+    else
+      batch
+    end
+  end
+
+  defp remove_duplicates(batches, sequences) do
+    unique_batches =
+      batches
+      |> Enum.sort(fn b1, b2 ->
+        b1.l2_block_number < b2.l2_block_number or
+          (b1.l2_block_number == b2.l2_block_number and b1.l1_timestamp < b2.l1_timestamp)
+      end)
+      |> Enum.reduce(%{}, fn b, acc ->
+        Map.put(acc, b.l2_block_number, Map.delete(b, :l1_timestamp))
+      end)
+      |> Map.values()
+
+    unique_sequences =
+      if Enum.empty?(sequences) do
+        []
+      else
+        sequences
+        |> Enum.reverse()
+        |> Enum.filter(fn seq ->
+          Enum.any?(unique_batches, fn batch -> batch.frame_sequence_id == seq.id end)
+        end)
+      end
+
+    {unique_batches, unique_sequences}
+  end
+
+  defp txs_filter(transactions_params, batch_submitter, batch_inbox) do
+    transactions_params
+    |> Enum.filter(fn t ->
+      from_address_hash = Map.get(t, :from_address_hash)
+      to_address_hash = Map.get(t, :to_address_hash)
+
+      if is_nil(from_address_hash) or is_nil(to_address_hash) do
+        false
+      else
+        String.downcase(from_address_hash) == batch_submitter and String.downcase(to_address_hash) == batch_inbox
+      end
+    end)
+  end
+
+  defp zlib_decompress(bytes) do
+    z = :zlib.open()
+    :zlib.inflateInit(z)
+
+    uncompressed_bytes =
+      try do
+        zlib_inflate(z, bytes)
+      rescue
+        _ -> <<>>
+      end
+
+    try do
+      :zlib.inflateEnd(z)
+    rescue
+      _ -> nil
+    end
+
+    :zlib.close(z)
+
+    uncompressed_bytes
+  end
+
+  defp zlib_inflate_handler(z, {:continue, [uncompressed_bytes]}, acc) do
+    zlib_inflate(z, [], acc <> uncompressed_bytes)
+  end
+
+  defp zlib_inflate_handler(_z, {:finished, [uncompressed_bytes]}, acc) do
+    acc <> uncompressed_bytes
+  end
+
+  defp zlib_inflate_handler(_z, {:finished, []}, acc) do
+    acc
+  end
+
+  defp zlib_inflate(z, compressed_bytes, acc \\ <<>>) do
+    result = :zlib.safeInflate(z, compressed_bytes)
+    zlib_inflate_handler(z, result, acc)
+  end
+end
diff --git a/apps/indexer/lib/indexer/fetcher/optimism/withdrawal.ex b/apps/indexer/lib/indexer/fetcher/optimism/withdrawal.ex
new file mode 100644
index 0000000000..aac9684bce
--- /dev/null
+++ b/apps/indexer/lib/indexer/fetcher/optimism/withdrawal.ex
@@ -0,0 +1,361 @@
+defmodule Indexer.Fetcher.Optimism.Withdrawal do
+  @moduledoc """
+  Fills op_withdrawals DB table.
+  """
+
+  use GenServer
+  use Indexer.Fetcher
+
+  require Logger
+
+  import Ecto.Query
+
+  import EthereumJSONRPC, only: [quantity_to_integer: 1]
+  import Explorer.Helper, only: [decode_data: 2, parse_integer: 1]
+
+  alias Explorer.{Chain, Repo}
+  alias Explorer.Chain.Log
+  alias Explorer.Chain.Optimism.Withdrawal, as: OptimismWithdrawal
+  alias Indexer.Fetcher.Optimism
+  alias Indexer.Helper
+
+  @fetcher_name :optimism_withdrawals
+
+  # 32-byte signature of the event MessagePassed(uint256 indexed nonce, address indexed sender, address indexed target, uint256 value, uint256 gasLimit, bytes data, bytes32 withdrawalHash)
+  @message_passed_event "0x02a52367d10742d8032712c1bb8e0144ff1ec5ffda1ed7d70bb05a2744955054"
+
+  def child_spec(start_link_arguments) do
+    spec = %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, start_link_arguments},
+      restart: :transient,
+      type: :worker
+    }
+
+    Supervisor.child_spec(spec, [])
+  end
+
+  def start_link(args, gen_server_options \\ []) do
+    GenServer.start_link(__MODULE__, args, Keyword.put_new(gen_server_options, :name, __MODULE__))
+  end
+
+  @impl GenServer
+  def init(args) do
+    json_rpc_named_arguments = args[:json_rpc_named_arguments]
+    {:ok, %{}, {:continue, json_rpc_named_arguments}}
+  end
+
+  @impl GenServer
+  def handle_continue(json_rpc_named_arguments, state) do
+    Logger.metadata(fetcher: @fetcher_name)
+
+    env = Application.get_all_env(:indexer)[__MODULE__]
+
+    with {:start_block_l2_undefined, false} <- {:start_block_l2_undefined, is_nil(env[:start_block_l2])},
+         {:message_passer_valid, true} <- {:message_passer_valid, Helper.address_correct?(env[:message_passer])},
+         start_block_l2 = parse_integer(env[:start_block_l2]),
+         false <- is_nil(start_block_l2),
+         true <- start_block_l2 > 0,
+         {last_l2_block_number, last_l2_transaction_hash} <- get_last_l2_item(),
+         {safe_block, safe_block_is_latest} = Optimism.get_safe_block(json_rpc_named_arguments),
+         {:start_block_l2_valid, true} <-
+           {:start_block_l2_valid,
+            (start_block_l2 <= last_l2_block_number || last_l2_block_number == 0) && start_block_l2 <= safe_block},
+         {:ok, last_l2_tx} <- Optimism.get_transaction_by_hash(last_l2_transaction_hash, json_rpc_named_arguments),
+         {:l2_tx_not_found, false} <- {:l2_tx_not_found, !is_nil(last_l2_transaction_hash) && is_nil(last_l2_tx)} do
+      Process.send(self(), :continue, [])
+
+      {:noreply,
+       %{
+         start_block: max(start_block_l2, last_l2_block_number),
+         start_block_l2: start_block_l2,
+         safe_block: safe_block,
+         safe_block_is_latest: safe_block_is_latest,
+         message_passer: env[:message_passer],
+         json_rpc_named_arguments: json_rpc_named_arguments
+       }}
+    else
+      {:start_block_l2_undefined, true} ->
+        # the process shouldn't start if the start block is not defined
+        {:stop, :normal, state}
+
+      {:message_passer_valid, false} ->
+        Logger.error("L2ToL1MessagePasser contract address is invalid or not defined.")
+        {:stop, :normal, state}
+
+      {:start_block_l2_valid, false} ->
+        Logger.error("Invalid L2 Start Block value. Please, check the value and op_withdrawals table.")
+        {:stop, :normal, state}
+
+      {:error, error_data} ->
+        Logger.error("Cannot get last L2 transaction from RPC by its hash due to RPC error: #{inspect(error_data)}")
+
+        {:stop, :normal, state}
+
+      {:l2_tx_not_found, true} ->
+        Logger.error(
+          "Cannot find last L2 transaction from RPC by its hash. Probably, there was a reorg on L2 chain. Please, check op_withdrawals table."
+        )
+
+        {:stop, :normal, state}
+
+      _ ->
+        Logger.error("Withdrawals L2 Start Block is invalid or zero.")
+        {:stop, :normal, state}
+    end
+  end
+
+  @impl GenServer
+  def handle_info(
+        :continue,
+        %{
+          start_block_l2: start_block_l2,
+          message_passer: message_passer,
+          json_rpc_named_arguments: json_rpc_named_arguments
+        } = state
+      ) do
+    fill_msg_nonce_gaps(start_block_l2, message_passer, json_rpc_named_arguments)
+    Process.send(self(), :find_new_events, [])
+    {:noreply, state}
+  end
+
+  @impl GenServer
+  def handle_info(
+        :find_new_events,
+        %{
+          start_block: start_block,
+          safe_block: safe_block,
+          safe_block_is_latest: safe_block_is_latest,
+          message_passer: message_passer,
+          json_rpc_named_arguments: json_rpc_named_arguments
+        } = state
+      ) do
+    # find and fill all events between start_block and "safe" block
+    # the "safe" block can be "latest" (when safe_block_is_latest == true)
+    fill_block_range(start_block, safe_block, message_passer, json_rpc_named_arguments)
+
+    if not safe_block_is_latest do
+      # find and fill all events between "safe" and "latest" block (excluding "safe")
+      {:ok, latest_block} = Optimism.get_block_number_by_tag("latest", json_rpc_named_arguments)
+      fill_block_range(safe_block + 1, latest_block, message_passer, json_rpc_named_arguments)
+    end
+
+    {:stop, :normal, state}
+  end
+
+  @impl GenServer
+  def handle_info({ref, _result}, state) do
+    Process.demonitor(ref, [:flush])
+    {:noreply, state}
+  end
+
+  def remove(starting_block) do
+    Repo.delete_all(from(w in OptimismWithdrawal, where: w.l2_block_number >= ^starting_block))
+  end
+
+  def event_to_withdrawal(second_topic, data, l2_transaction_hash, l2_block_number) do
+    [_value, _gas_limit, _data, hash] = decode_data(data, [{:uint, 256}, {:uint, 256}, :bytes, {:bytes, 32}])
+
+    msg_nonce =
+      second_topic
+      |> Helper.log_topic_to_string()
+      |> quantity_to_integer()
+      |> Decimal.new()
+
+    %{
+      msg_nonce: msg_nonce,
+      hash: hash,
+      l2_transaction_hash: l2_transaction_hash,
+      l2_block_number: quantity_to_integer(l2_block_number)
+    }
+  end
+
+  defp msg_nonce_gap_starts(nonce_max) do
+    Repo.all(
+      from(w in OptimismWithdrawal,
+        select: w.l2_block_number,
+        order_by: w.msg_nonce,
+        where:
+          fragment(
+            "NOT EXISTS (SELECT msg_nonce FROM op_withdrawals WHERE msg_nonce = (? + 1)) AND msg_nonce != ?",
+            w.msg_nonce,
+            ^nonce_max
+          )
+      )
+    )
+  end
+
+  defp msg_nonce_gap_ends(nonce_min) do
+    Repo.all(
+      from(w in OptimismWithdrawal,
+        select: w.l2_block_number,
+        order_by: w.msg_nonce,
+        where:
+          fragment(
+            "NOT EXISTS (SELECT msg_nonce FROM op_withdrawals WHERE msg_nonce = (? - 1)) AND msg_nonce != ?",
+            w.msg_nonce,
+            ^nonce_min
+          )
+      )
+    )
+  end
+
+  defp find_and_save_withdrawals(
+         scan_db,
+         message_passer,
+         block_start,
+         block_end,
+         json_rpc_named_arguments
+       ) do
+    withdrawals =
+      if scan_db do
+        query =
+          from(log in Log,
+            select: {log.second_topic, log.data, log.transaction_hash, log.block_number},
+            where:
+              log.first_topic == ^@message_passed_event and log.address_hash == ^message_passer and
+                log.block_number >= ^block_start and log.block_number <= ^block_end
+          )
+
+        query
+        |> Repo.all(timeout: :infinity)
+        |> Enum.map(fn {second_topic, data, l2_transaction_hash, l2_block_number} ->
+          event_to_withdrawal(second_topic, data, l2_transaction_hash, l2_block_number)
+        end)
+      else
+        {:ok, result} =
+          Optimism.get_logs(
+            block_start,
+            block_end,
+            message_passer,
+            @message_passed_event,
+            json_rpc_named_arguments,
+            3
+          )
+
+        Enum.map(result, fn event ->
+          event_to_withdrawal(
+            Enum.at(event["topics"], 1),
+            event["data"],
+            event["transactionHash"],
+            event["blockNumber"]
+          )
+        end)
+      end
+
+    {:ok, _} =
+      Chain.import(%{
+        optimism_withdrawals: %{params: withdrawals},
+        timeout: :infinity
+      })
+
+    Enum.count(withdrawals)
+  end
+
+  defp fill_block_range(l2_block_start, l2_block_end, message_passer, json_rpc_named_arguments, scan_db) do
+    chunks_number =
+      if scan_db do
+        1
+      else
+        ceil((l2_block_end - l2_block_start + 1) / Optimism.get_logs_range_size())
+      end
+
+    chunk_range = Range.new(0, max(chunks_number - 1, 0), 1)
+
+    Enum.reduce(chunk_range, 0, fn current_chunk, withdrawals_count_acc ->
+      chunk_start = l2_block_start + Optimism.get_logs_range_size() * current_chunk
+
+      chunk_end =
+        if scan_db do
+          l2_block_end
+        else
+          min(chunk_start + Optimism.get_logs_range_size() - 1, l2_block_end)
+        end
+
+      Helper.log_blocks_chunk_handling(chunk_start, chunk_end, l2_block_start, l2_block_end, nil, :L2)
+
+      withdrawals_count =
+        find_and_save_withdrawals(
+          scan_db,
+          message_passer,
+          chunk_start,
+          chunk_end,
+          json_rpc_named_arguments
+        )
+
+      Helper.log_blocks_chunk_handling(
+        chunk_start,
+        chunk_end,
+        l2_block_start,
+        l2_block_end,
+        "#{withdrawals_count} MessagePassed event(s)",
+        :L2
+      )
+
+      withdrawals_count_acc + withdrawals_count
+    end)
+  end
+
+  defp fill_block_range(start_block, end_block, message_passer, json_rpc_named_arguments) do
+    fill_block_range(start_block, end_block, message_passer, json_rpc_named_arguments, true)
+    fill_msg_nonce_gaps(start_block, message_passer, json_rpc_named_arguments, false)
+    {last_l2_block_number, _} = get_last_l2_item()
+    fill_block_range(max(start_block, last_l2_block_number), end_block, message_passer, json_rpc_named_arguments, false)
+  end
+
+  defp fill_msg_nonce_gaps(start_block_l2, message_passer, json_rpc_named_arguments, scan_db \\ true) do
+    nonce_min = Repo.aggregate(OptimismWithdrawal, :min, :msg_nonce)
+    nonce_max = Repo.aggregate(OptimismWithdrawal, :max, :msg_nonce)
+
+    with true <- !is_nil(nonce_min) and !is_nil(nonce_max),
+         starts = msg_nonce_gap_starts(nonce_max),
+         ends = msg_nonce_gap_ends(nonce_min),
+         min_block_l2 = l2_block_number_by_msg_nonce(nonce_min),
+         {new_starts, new_ends} =
+           if(start_block_l2 < min_block_l2,
+             do: {[start_block_l2 | starts], [min_block_l2 | ends]},
+             else: {starts, ends}
+           ),
+         true <- Enum.count(new_starts) == Enum.count(new_ends) do
+      new_starts
+      |> Enum.zip(new_ends)
+      |> Enum.each(fn {l2_block_start, l2_block_end} ->
+        withdrawals_count =
+          fill_block_range(l2_block_start, l2_block_end, message_passer, json_rpc_named_arguments, scan_db)
+
+        if withdrawals_count > 0 do
+          log_fill_msg_nonce_gaps(scan_db, l2_block_start, l2_block_end, withdrawals_count)
+        end
+      end)
+
+      if scan_db do
+        fill_msg_nonce_gaps(start_block_l2, message_passer, json_rpc_named_arguments, false)
+      end
+    end
+  end
+
+  defp get_last_l2_item do
+    query =
+      from(w in OptimismWithdrawal,
+        select: {w.l2_block_number, w.l2_transaction_hash},
+        order_by: [desc: w.msg_nonce],
+        limit: 1
+      )
+
+    query
+    |> Repo.one()
+    |> Kernel.||({0, nil})
+  end
+
+  defp log_fill_msg_nonce_gaps(scan_db, l2_block_start, l2_block_end, withdrawals_count) do
+    find_place = if scan_db, do: "in DB", else: "through RPC"
+
+    Logger.info(
+      "Filled gaps between L2 blocks #{l2_block_start} and #{l2_block_end}. #{withdrawals_count} event(s) were found #{find_place} and written to op_withdrawals table."
+    )
+  end
+
+  defp l2_block_number_by_msg_nonce(nonce) do
+    Repo.one(from(w in OptimismWithdrawal, select: w.l2_block_number, where: w.msg_nonce == ^nonce))
+  end
+end
diff --git a/apps/indexer/lib/indexer/fetcher/optimism/withdrawal_event.ex b/apps/indexer/lib/indexer/fetcher/optimism/withdrawal_event.ex
new file mode 100644
index 0000000000..8854f868ba
--- /dev/null
+++ b/apps/indexer/lib/indexer/fetcher/optimism/withdrawal_event.ex
@@ -0,0 +1,226 @@
+defmodule Indexer.Fetcher.Optimism.WithdrawalEvent do
+  @moduledoc """
+  Fills op_withdrawal_events DB table.
+  """
+
+  use GenServer
+  use Indexer.Fetcher
+
+  require Logger
+
+  import Ecto.Query
+
+  import EthereumJSONRPC, only: [quantity_to_integer: 1]
+
+  alias EthereumJSONRPC.Block.ByNumber
+  alias EthereumJSONRPC.Blocks
+  alias Explorer.{Chain, Repo}
+  alias Explorer.Chain.Optimism.WithdrawalEvent
+  alias Indexer.Fetcher.Optimism
+  alias Indexer.Helper
+
+  @fetcher_name :optimism_withdrawal_events
+
+  # 32-byte signature of the event WithdrawalProven(bytes32 indexed withdrawalHash, address indexed from, address indexed to)
+  @withdrawal_proven_event "0x67a6208cfcc0801d50f6cbe764733f4fddf66ac0b04442061a8a8c0cb6b63f62"
+
+  # 32-byte signature of the event WithdrawalFinalized(bytes32 indexed withdrawalHash, bool success)
+  @withdrawal_finalized_event "0xdb5c7652857aa163daadd670e116628fb42e869d8ac4251ef8971d9e5727df1b"
+
+  def child_spec(start_link_arguments) do
+    spec = %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, start_link_arguments},
+      restart: :transient,
+      type: :worker
+    }
+
+    Supervisor.child_spec(spec, [])
+  end
+
+  def start_link(args, gen_server_options \\ []) do
+    GenServer.start_link(__MODULE__, args, Keyword.put_new(gen_server_options, :name, __MODULE__))
+  end
+
+  @impl GenServer
+  def init(_args) do
+    {:ok, %{}, {:continue, :ok}}
+  end
+
+  @impl GenServer
+  def handle_continue(:ok, _state) do
+    Logger.metadata(fetcher: @fetcher_name)
+
+    env = Application.get_all_env(:indexer)[__MODULE__]
+    optimism_l1_portal = Application.get_all_env(:indexer)[Indexer.Fetcher.Optimism][:optimism_l1_portal]
+
+    Optimism.init_continue(env, optimism_l1_portal, __MODULE__)
+  end
+
+  @impl GenServer
+  def handle_info(
+        :continue,
+        %{
+          contract_address: optimism_portal,
+          block_check_interval: block_check_interval,
+          start_block: start_block,
+          end_block: end_block,
+          json_rpc_named_arguments: json_rpc_named_arguments
+        } = state
+      ) do
+    # credo:disable-for-next-line
+    time_before = Timex.now()
+
+    chunks_number = ceil((end_block - start_block + 1) / Optimism.get_logs_range_size())
+    chunk_range = Range.new(0, max(chunks_number - 1, 0), 1)
+
+    last_written_block =
+      chunk_range
+      |> Enum.reduce_while(start_block - 1, fn current_chunk, _ ->
+        chunk_start = start_block + Optimism.get_logs_range_size() * current_chunk
+        chunk_end = min(chunk_start + Optimism.get_logs_range_size() - 1, end_block)
+
+        if chunk_end >= chunk_start do
+          Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L1)
+
+          {:ok, result} =
+            Optimism.get_logs(
+              chunk_start,
+              chunk_end,
+              optimism_portal,
+              [@withdrawal_proven_event, @withdrawal_finalized_event],
+              json_rpc_named_arguments,
+              Helper.infinite_retries_number()
+            )
+
+          withdrawal_events = prepare_events(result, json_rpc_named_arguments)
+
+          {:ok, _} =
+            Chain.import(%{
+              optimism_withdrawal_events: %{params: withdrawal_events},
+              timeout: :infinity
+            })
+
+          Helper.log_blocks_chunk_handling(
+            chunk_start,
+            chunk_end,
+            start_block,
+            end_block,
+            "#{Enum.count(withdrawal_events)} WithdrawalProven/WithdrawalFinalized event(s)",
+            :L1
+          )
+        end
+
+        reorg_block = Optimism.reorg_block_pop(@fetcher_name)
+
+        if !is_nil(reorg_block) && reorg_block > 0 do
+          {deleted_count, _} = Repo.delete_all(from(we in WithdrawalEvent, where: we.l1_block_number >= ^reorg_block))
+
+          log_deleted_rows_count(reorg_block, deleted_count)
+
+          {:halt, if(reorg_block <= chunk_end, do: reorg_block - 1, else: chunk_end)}
+        else
+          {:cont, chunk_end}
+        end
+      end)
+
+    new_start_block = last_written_block + 1
+
+    {:ok, new_end_block} =
+      Optimism.get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
+
+    delay =
+      if new_end_block == last_written_block do
+        # there is no new block, so wait for some time to let the chain issue the new block
+        max(block_check_interval - Timex.diff(Timex.now(), time_before, :milliseconds), 0)
+      else
+        0
+      end
+
+    Process.send_after(self(), :continue, delay)
+
+    {:noreply, %{state | start_block: new_start_block, end_block: new_end_block}}
+  end
+
+  @impl GenServer
+  def handle_info({:chain_event, :optimism_reorg_block, :realtime, block_number}, state) do
+    Optimism.reorg_block_push(@fetcher_name, block_number)
+    {:noreply, state}
+  end
+
+  @impl GenServer
+  def handle_info({ref, _result}, state) do
+    Process.demonitor(ref, [:flush])
+    {:noreply, state}
+  end
+
+  defp log_deleted_rows_count(reorg_block, count) do
+    if count > 0 do
+      Logger.warning(
+        "As L1 reorg was detected, all rows with l1_block_number >= #{reorg_block} were removed from the op_withdrawal_events table. Number of removed rows: #{count}."
+      )
+    end
+  end
+
+  defp prepare_events(events, json_rpc_named_arguments) do
+    timestamps =
+      events
+      |> get_blocks_by_events(json_rpc_named_arguments, Helper.infinite_retries_number())
+      |> Enum.reduce(%{}, fn block, acc ->
+        block_number = quantity_to_integer(Map.get(block, "number"))
+        {:ok, timestamp} = DateTime.from_unix(quantity_to_integer(Map.get(block, "timestamp")))
+        Map.put(acc, block_number, timestamp)
+      end)
+
+    Enum.map(events, fn event ->
+      l1_event_type =
+        if Enum.at(event["topics"], 0) == @withdrawal_proven_event do
+          "WithdrawalProven"
+        else
+          "WithdrawalFinalized"
+        end
+
+      l1_block_number = quantity_to_integer(event["blockNumber"])
+
+      %{
+        withdrawal_hash: Enum.at(event["topics"], 1),
+        l1_event_type: l1_event_type,
+        l1_timestamp: Map.get(timestamps, l1_block_number),
+        l1_transaction_hash: event["transactionHash"],
+        l1_block_number: l1_block_number
+      }
+    end)
+  end
+
+  def get_last_l1_item do
+    query =
+      from(we in WithdrawalEvent,
+        select: {we.l1_block_number, we.l1_transaction_hash},
+        order_by: [desc: we.l1_timestamp],
+        limit: 1
+      )
+
+    query
+    |> Repo.one()
+    |> Kernel.||({0, nil})
+  end
+
+  defp get_blocks_by_events(events, json_rpc_named_arguments, retries) do
+    request =
+      events
+      |> Enum.reduce(%{}, fn event, acc ->
+        Map.put(acc, event["blockNumber"], 0)
+      end)
+      |> Stream.map(fn {block_number, _} -> %{number: block_number} end)
+      |> Stream.with_index()
+      |> Enum.into(%{}, fn {params, id} -> {id, params} end)
+      |> Blocks.requests(&ByNumber.request(&1, false, false))
+
+    error_message = &"Cannot fetch blocks with batch request. Error: #{inspect(&1)}. Request: #{inspect(request)}"
+
+    case Optimism.repeated_request(request, error_message, json_rpc_named_arguments, retries) do
+      {:ok, results} -> Enum.map(results, fn %{result: result} -> result end)
+      {:error, _} -> []
+    end
+  end
+end
diff --git a/apps/indexer/lib/indexer/fetcher/polygon_edge.ex b/apps/indexer/lib/indexer/fetcher/polygon_edge.ex
index ee1fe71ddb..9332e5b8f9 100644
--- a/apps/indexer/lib/indexer/fetcher/polygon_edge.ex
+++ b/apps/indexer/lib/indexer/fetcher/polygon_edge.ex
@@ -67,7 +67,11 @@ defmodule Indexer.Fetcher.PolygonEdge do
            {:start_block_l1_valid, start_block_l1 <= last_l1_block_number || last_l1_block_number == 0},
          json_rpc_named_arguments = json_rpc_named_arguments(polygon_edge_l1_rpc),
          {:ok, last_l1_tx} <-
-           Helper.get_transaction_by_hash(last_l1_transaction_hash, json_rpc_named_arguments, 100_000_000),
+           Helper.get_transaction_by_hash(
+             last_l1_transaction_hash,
+             json_rpc_named_arguments,
+             Helper.infinite_retries_number()
+           ),
          {:l1_tx_not_found, false} <- {:l1_tx_not_found, !is_nil(last_l1_transaction_hash) && is_nil(last_l1_tx)},
          {:ok, block_check_interval, last_safe_block} <-
            Helper.get_block_check_interval(json_rpc_named_arguments) do
@@ -144,7 +148,11 @@ defmodule Indexer.Fetcher.PolygonEdge do
            {:start_block_l2_valid,
             (start_block_l2 <= last_l2_block_number || last_l2_block_number == 0) && start_block_l2 <= safe_block},
          {:ok, last_l2_tx} <-
-           Helper.get_transaction_by_hash(last_l2_transaction_hash, json_rpc_named_arguments, 100_000_000),
+           Helper.get_transaction_by_hash(
+             last_l2_transaction_hash,
+             json_rpc_named_arguments,
+             Helper.infinite_retries_number()
+           ),
          {:l2_tx_not_found, false} <- {:l2_tx_not_found, !is_nil(last_l2_transaction_hash) && is_nil(last_l2_tx)} do
       Process.send(pid, :continue, [])
 
@@ -217,7 +225,7 @@ defmodule Indexer.Fetcher.PolygonEdge do
         chunk_end = min(chunk_start + eth_get_logs_range_size - 1, end_block)
 
         if chunk_end >= chunk_start do
-          Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, "L1")
+          Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L1)
 
           {:ok, result} =
             get_logs(
@@ -226,7 +234,7 @@ defmodule Indexer.Fetcher.PolygonEdge do
               contract_address,
               event_signature,
               json_rpc_named_arguments,
-              100_000_000
+              Helper.infinite_retries_number()
             )
 
           {events, event_name} =
@@ -240,7 +248,7 @@ defmodule Indexer.Fetcher.PolygonEdge do
             start_block,
             end_block,
             "#{Enum.count(events)} #{event_name} event(s)",
-            "L1"
+            :L1
           )
         end
 
@@ -248,7 +256,9 @@ defmodule Indexer.Fetcher.PolygonEdge do
       end)
 
     new_start_block = last_written_block + 1
-    {:ok, new_end_block} = Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, 100_000_000)
+
+    {:ok, new_end_block} =
+      Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
 
     delay =
       if new_end_block == last_written_block do
@@ -298,7 +308,7 @@ defmodule Indexer.Fetcher.PolygonEdge do
           min(chunk_start + eth_get_logs_range_size - 1, l2_block_end)
         end
 
-      Helper.log_blocks_chunk_handling(chunk_start, chunk_end, l2_block_start, l2_block_end, nil, "L2")
+      Helper.log_blocks_chunk_handling(chunk_start, chunk_end, l2_block_start, l2_block_end, nil, :L2)
 
       count =
         calling_module.find_and_save_entities(
@@ -322,7 +332,7 @@ defmodule Indexer.Fetcher.PolygonEdge do
         l2_block_start,
         l2_block_end,
         "#{count} #{event_name} event(s)",
-        "L2"
+        :L2
       )
 
       count_acc + count
@@ -488,7 +498,9 @@ defmodule Indexer.Fetcher.PolygonEdge do
         {safe_block, false}
 
       {:error, :not_found} ->
-        {:ok, latest_block} = Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, 100_000_000)
+        {:ok, latest_block} =
+          Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
+
         {latest_block, true}
     end
   end
@@ -573,7 +585,7 @@ defmodule Indexer.Fetcher.PolygonEdge do
   defp import_events(events, calling_module) do
     # here we explicitly check CHAIN_TYPE as Dialyzer throws an error otherwise
     {import_data, event_name} =
-      case System.get_env("CHAIN_TYPE") == "polygon_edge" && calling_module do
+      case Application.get_env(:explorer, :chain_type) == "polygon_edge" && calling_module do
         Deposit ->
           {%{polygon_edge_deposits: %{params: events}, timeout: :infinity}, "StateSynced"}
 
diff --git a/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit.ex b/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit.ex
index 642e1951ca..556acfd892 100644
--- a/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit.ex
+++ b/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit.ex
@@ -18,6 +18,7 @@ defmodule Indexer.Fetcher.PolygonEdge.Deposit do
   alias EthereumJSONRPC.Blocks
   alias Explorer.Chain.PolygonEdge.Deposit
   alias Indexer.Fetcher.PolygonEdge
+  alias Indexer.Helper
 
   @fetcher_name :polygon_edge_deposit
 
@@ -123,7 +124,7 @@ defmodule Indexer.Fetcher.PolygonEdge.Deposit do
 
   defp get_timestamps_by_events(events, json_rpc_named_arguments) do
     events
-    |> get_blocks_by_events(json_rpc_named_arguments, 100_000_000)
+    |> get_blocks_by_events(json_rpc_named_arguments, Helper.infinite_retries_number())
     |> Enum.reduce(%{}, fn block, acc ->
       block_number = quantity_to_integer(Map.get(block, "number"))
       {:ok, timestamp} = DateTime.from_unix(quantity_to_integer(Map.get(block, "timestamp")))
diff --git a/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit_execute.ex b/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit_execute.ex
index 82a8a2d7ed..8c1c85c220 100644
--- a/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit_execute.ex
+++ b/apps/indexer/lib/indexer/fetcher/polygon_edge/deposit_execute.ex
@@ -105,7 +105,8 @@ defmodule Indexer.Fetcher.PolygonEdge.DepositExecute do
 
     if not safe_block_is_latest do
       # find and fill all events between "safe" and "latest" block (excluding "safe")
-      {:ok, latest_block} = Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, 100_000_000)
+      {:ok, latest_block} =
+        Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
 
       fill_block_range(
         safe_block + 1,
@@ -181,7 +182,7 @@ defmodule Indexer.Fetcher.PolygonEdge.DepositExecute do
             state_receiver,
             @state_sync_result_event,
             json_rpc_named_arguments,
-            100_000_000
+            Helper.infinite_retries_number()
           )
 
         Enum.map(result, fn event ->
@@ -196,7 +197,7 @@ defmodule Indexer.Fetcher.PolygonEdge.DepositExecute do
 
     # here we explicitly check CHAIN_TYPE as Dialyzer throws an error otherwise
     import_options =
-      if System.get_env("CHAIN_TYPE") == "polygon_edge" do
+      if Application.get_env(:explorer, :chain_type) == "polygon_edge" do
         %{
           polygon_edge_deposit_executes: %{params: executes},
           timeout: :infinity
diff --git a/apps/indexer/lib/indexer/fetcher/polygon_edge/withdrawal.ex b/apps/indexer/lib/indexer/fetcher/polygon_edge/withdrawal.ex
index c952d51618..4ec0f7e077 100644
--- a/apps/indexer/lib/indexer/fetcher/polygon_edge/withdrawal.ex
+++ b/apps/indexer/lib/indexer/fetcher/polygon_edge/withdrawal.ex
@@ -110,7 +110,8 @@ defmodule Indexer.Fetcher.PolygonEdge.Withdrawal do
 
     if not safe_block_is_latest do
       # find and fill all events between "safe" and "latest" block (excluding "safe")
-      {:ok, latest_block} = Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, 100_000_000)
+      {:ok, latest_block} =
+        Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
 
       fill_block_range(
         safe_block + 1,
@@ -196,7 +197,7 @@ defmodule Indexer.Fetcher.PolygonEdge.Withdrawal do
             state_sender,
             @l2_state_synced_event,
             json_rpc_named_arguments,
-            100_000_000
+            Helper.infinite_retries_number()
           )
 
         Enum.map(result, fn event ->
@@ -211,7 +212,7 @@ defmodule Indexer.Fetcher.PolygonEdge.Withdrawal do
 
     # here we explicitly check CHAIN_TYPE as Dialyzer throws an error otherwise
     import_options =
-      if System.get_env("CHAIN_TYPE") == "polygon_edge" do
+      if Application.get_env(:explorer, :chain_type) == "polygon_edge" do
         %{
           polygon_edge_withdrawals: %{params: withdrawals},
           timeout: :infinity
diff --git a/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l1.ex b/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l1.ex
index cd7fe24344..9899c70991 100644
--- a/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l1.ex
+++ b/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l1.ex
@@ -146,7 +146,7 @@ defmodule Indexer.Fetcher.PolygonZkevm.BridgeL1 do
         chunk_end = List.last(current_chunk)
 
         if chunk_start <= chunk_end do
-          Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, "L1")
+          Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L1)
 
           operations =
             {chunk_start, chunk_end}
@@ -161,7 +161,7 @@ defmodule Indexer.Fetcher.PolygonZkevm.BridgeL1 do
             start_block,
             end_block,
             "#{Enum.count(operations)} L1 operation(s)",
-            "L1"
+            :L1
           )
         end
 
diff --git a/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l2.ex b/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l2.ex
index f8d7695cd9..2cd121881b 100644
--- a/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l2.ex
+++ b/apps/indexer/lib/indexer/fetcher/polygon_zkevm/bridge_l2.ex
@@ -134,7 +134,7 @@ defmodule Indexer.Fetcher.PolygonZkevm.BridgeL2 do
       chunk_end = List.last(current_chunk)
 
       if chunk_start <= chunk_end do
-        Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, "L2")
+        Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L2)
 
         operations =
           {chunk_start, chunk_end}
@@ -149,7 +149,7 @@ defmodule Indexer.Fetcher.PolygonZkevm.BridgeL2 do
           start_block,
           end_block,
           "#{Enum.count(operations)} L2 operation(s)",
-          "L2"
+          :L2
         )
       end
     end)
diff --git a/apps/indexer/lib/indexer/fetcher/shibarium/l1.ex b/apps/indexer/lib/indexer/fetcher/shibarium/l1.ex
index 76ed302099..4a3889dd2a 100644
--- a/apps/indexer/lib/indexer/fetcher/shibarium/l1.ex
+++ b/apps/indexer/lib/indexer/fetcher/shibarium/l1.ex
@@ -243,7 +243,7 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
         chunk_end = List.last(current_chunk)
 
         if chunk_start <= chunk_end do
-          Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, "L1")
+          Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L1)
 
           operations =
             {chunk_start, chunk_end}
@@ -278,7 +278,7 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
             start_block,
             end_block,
             "#{Enum.count(operations)} L1 operation(s)",
-            "L1"
+            :L1
           )
         end
 
@@ -293,7 +293,9 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
       end)
 
     new_start_block = last_written_block + 1
-    {:ok, new_end_block} = Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, 100_000_000)
+
+    {:ok, new_end_block} =
+      Helper.get_block_number_by_tag("latest", json_rpc_named_arguments, Helper.infinite_retries_number())
 
     delay =
       if new_end_block == last_written_block do
@@ -352,7 +354,7 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
     |> Kernel.||({0, nil})
   end
 
-  defp get_logs(from_block, to_block, address, topics, json_rpc_named_arguments, retries \\ 100_000_000) do
+  defp get_logs(from_block, to_block, address, topics, json_rpc_named_arguments, retries) do
     processed_from_block = integer_to_quantity(from_block)
     processed_to_block = integer_to_quantity(to_block)
 
@@ -402,7 +404,8 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
             @exited_ether_event
           ]
         ],
-        json_rpc_named_arguments
+        json_rpc_named_arguments,
+        Helper.infinite_retries_number()
       )
 
     contract_addresses =
@@ -421,7 +424,8 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
           @transfer_event,
           contract_addresses
         ],
-        json_rpc_named_arguments
+        json_rpc_named_arguments,
+        Helper.infinite_retries_number()
       )
 
     {:ok, unknown_erc1155_tokens_result} =
@@ -437,7 +441,8 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
             nil,
             pad_address_hash(erc1155_predicate_proxy)
           ],
-          json_rpc_named_arguments
+          json_rpc_named_arguments,
+          Helper.infinite_retries_number()
         )
       end
 
@@ -552,7 +557,7 @@ defmodule Indexer.Fetcher.Shibarium.L1 do
     timestamps =
       events
       |> filter_deposit_events()
-      |> Helper.get_blocks_by_events(json_rpc_named_arguments, 100_000_000)
+      |> Helper.get_blocks_by_events(json_rpc_named_arguments, Helper.infinite_retries_number())
       |> Enum.reduce(%{}, fn block, acc ->
         block_number = quantity_to_integer(Map.get(block, "number"))
         {:ok, timestamp} = DateTime.from_unix(quantity_to_integer(Map.get(block, "timestamp")))
diff --git a/apps/indexer/lib/indexer/fetcher/shibarium/l2.ex b/apps/indexer/lib/indexer/fetcher/shibarium/l2.ex
index 41512c4649..b85e4b5586 100644
--- a/apps/indexer/lib/indexer/fetcher/shibarium/l2.ex
+++ b/apps/indexer/lib/indexer/fetcher/shibarium/l2.ex
@@ -174,7 +174,7 @@ defmodule Indexer.Fetcher.Shibarium.L2 do
       chunk_start = List.first(current_chunk)
       chunk_end = List.last(current_chunk)
 
-      Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, "L2")
+      Helper.log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, nil, :L2)
 
       operations =
         chunk_start..chunk_end
@@ -201,7 +201,7 @@ defmodule Indexer.Fetcher.Shibarium.L2 do
         start_block,
         end_block,
         "#{Enum.count(operations)} L2 operation(s)",
-        "L2"
+        :L2
       )
     end)
 
@@ -316,7 +316,7 @@ defmodule Indexer.Fetcher.Shibarium.L2 do
   end
 
   defp get_logs_all(block_range, child_chain, bone_withdraw, json_rpc_named_arguments) do
-    blocks = get_blocks_by_range(block_range, json_rpc_named_arguments, 100_000_000)
+    blocks = get_blocks_by_range(block_range, json_rpc_named_arguments, Helper.infinite_retries_number())
 
     deposit_logs = get_deposit_logs_from_receipts(blocks, child_chain, json_rpc_named_arguments)
 
@@ -355,7 +355,7 @@ defmodule Indexer.Fetcher.Shibarium.L2 do
     end)
     |> Enum.chunk_every(@eth_get_logs_range_size)
     |> Enum.reduce([], fn hashes, acc ->
-      acc ++ get_receipt_logs(hashes, json_rpc_named_arguments, 100_000_000)
+      acc ++ get_receipt_logs(hashes, json_rpc_named_arguments, Helper.infinite_retries_number())
     end)
     |> filter_deposit_events(child_chain)
   end
@@ -376,7 +376,7 @@ defmodule Indexer.Fetcher.Shibarium.L2 do
     end)
     |> Enum.chunk_every(@eth_get_logs_range_size)
     |> Enum.reduce([], fn hashes, acc ->
-      acc ++ get_receipt_logs(hashes, json_rpc_named_arguments, 100_000_000)
+      acc ++ get_receipt_logs(hashes, json_rpc_named_arguments, Helper.infinite_retries_number())
     end)
     |> filter_withdrawal_events(bone_withdraw)
   end
diff --git a/apps/indexer/lib/indexer/fetcher/transaction_action.ex b/apps/indexer/lib/indexer/fetcher/transaction_action.ex
index 1d142aad50..ac851b3999 100644
--- a/apps/indexer/lib/indexer/fetcher/transaction_action.ex
+++ b/apps/indexer/lib/indexer/fetcher/transaction_action.ex
@@ -13,8 +13,9 @@ defmodule Indexer.Fetcher.TransactionAction do
       from: 2
     ]
 
+  import Explorer.Helper, only: [parse_integer: 1]
+
   alias Explorer.{Chain, Repo}
-  alias Explorer.Helper, as: ExplorerHelper
   alias Explorer.Chain.{Block, BlockNumberHelper, Log, TransactionAction}
   alias Indexer.Transform.{Addresses, TransactionActions}
 
@@ -197,8 +198,8 @@ defmodule Indexer.Fetcher.TransactionAction do
     logger_metadata = Logger.metadata()
     Logger.metadata(fetcher: :transaction_action)
 
-    first_block = ExplorerHelper.parse_integer(first_block)
-    last_block = ExplorerHelper.parse_integer(last_block)
+    first_block = parse_integer(first_block)
+    last_block = parse_integer(last_block)
 
     return =
       if is_nil(first_block) or is_nil(last_block) or first_block <= 0 or last_block <= 0 or first_block > last_block do
diff --git a/apps/indexer/lib/indexer/helper.ex b/apps/indexer/lib/indexer/helper.ex
index d8d3a650cb..9f4983799e 100644
--- a/apps/indexer/lib/indexer/helper.ex
+++ b/apps/indexer/lib/indexer/helper.ex
@@ -17,6 +17,8 @@ defmodule Indexer.Helper do
   alias EthereumJSONRPC.Blocks
   alias Explorer.Chain.Hash
 
+  @finite_retries_number 3
+  @infinite_retries_number 100_000_000
   @block_check_interval_range_size 100
   @block_by_number_chunk_size 50
 
@@ -102,7 +104,7 @@ defmodule Indexer.Helper do
   Performs a specified number of retries (up to) if the first attempt returns error.
   """
   @spec get_block_number_by_tag(binary(), list(), non_neg_integer()) :: {:ok, non_neg_integer()} | {:error, atom()}
-  def get_block_number_by_tag(tag, json_rpc_named_arguments, retries \\ 3) do
+  def get_block_number_by_tag(tag, json_rpc_named_arguments, retries \\ @finite_retries_number) do
     error_message = &"Cannot fetch #{tag} block number. Error: #{inspect(&1)}"
     repeated_call(&fetch_block_number_by_tag/2, [tag, json_rpc_named_arguments], error_message, retries)
   end
@@ -112,7 +114,7 @@ defmodule Indexer.Helper do
   Performs a specified number of retries (up to) if the first attempt returns error.
   """
   @spec get_transaction_by_hash(binary() | nil, list(), non_neg_integer()) :: {:ok, any()} | {:error, any()}
-  def get_transaction_by_hash(hash, json_rpc_named_arguments, retries_left \\ 3)
+  def get_transaction_by_hash(hash, json_rpc_named_arguments, retries_left \\ @finite_retries_number)
 
   def get_transaction_by_hash(hash, _json_rpc_named_arguments, _retries_left) when is_nil(hash), do: {:ok, nil}
 
@@ -129,6 +131,10 @@ defmodule Indexer.Helper do
     repeated_call(&json_rpc/2, [req, json_rpc_named_arguments], error_message, retries)
   end
 
+  def infinite_retries_number do
+    @infinite_retries_number
+  end
+
   @doc """
   Forms JSON RPC named arguments for the given RPC URL.
   """
@@ -157,7 +163,7 @@ defmodule Indexer.Helper do
           non_neg_integer(),
           non_neg_integer(),
           binary() | nil,
-          binary()
+          :L1 | :L2
         ) :: :ok
   def log_blocks_chunk_handling(chunk_start, chunk_end, start_block, end_block, items_count, layer) do
     is_start = is_nil(items_count)
@@ -200,11 +206,11 @@ defmodule Indexer.Helper do
   @doc """
   Calls the given function with the given arguments
   until it returns {:ok, any()} or the given attempts number is reached.
-  Pauses execution between invokes for 3 seconds.
+  Pauses execution between invokes for 3..1200 seconds (depending on the number of retries).
   """
   @spec repeated_call((... -> any()), list(), (... -> any()), non_neg_integer()) ::
-          {:ok, any()} | {:error, binary() | atom()}
-  def repeated_call(func, args, error_message, retries_left) do
+          {:ok, any()} | {:error, binary() | atom() | map()}
+  def repeated_call(func, args, error_message, retries_left, retries_done \\ 0) do
     case apply(func, args) do
       {:ok, _} = res ->
         res
@@ -217,8 +223,11 @@ defmodule Indexer.Helper do
           err
         else
           Logger.error("#{error_message.(message)} Retrying...")
-          :timer.sleep(3000)
-          repeated_call(func, args, error_message, retries_left)
+
+          # wait up to 20 minutes
+          :timer.sleep(min(3000 * Integer.pow(2, retries_done), 1_200_000))
+
+          repeated_call(func, args, error_message, retries_left, retries_done + 1)
         end
     end
   end
@@ -266,7 +275,7 @@ defmodule Indexer.Helper do
   """
   @spec get_block_timestamp_by_number(non_neg_integer(), list(), non_neg_integer()) ::
           {:ok, non_neg_integer()} | {:error, any()}
-  def get_block_timestamp_by_number(number, json_rpc_named_arguments, retries \\ 3) do
+  def get_block_timestamp_by_number(number, json_rpc_named_arguments, retries \\ @finite_retries_number) do
     func = &get_block_timestamp_by_number_inner/2
     args = [number, json_rpc_named_arguments]
     error_message = &"Cannot fetch block ##{number} or its timestamp. Error: #{inspect(&1)}"
diff --git a/apps/indexer/lib/indexer/supervisor.ex b/apps/indexer/lib/indexer/supervisor.ex
index defc0e3bae..b1018baa39 100644
--- a/apps/indexer/lib/indexer/supervisor.ex
+++ b/apps/indexer/lib/indexer/supervisor.ex
@@ -137,6 +137,18 @@ defmodule Indexer.Supervisor do
         {TokenUpdater.Supervisor,
          [[json_rpc_named_arguments: json_rpc_named_arguments, memory_monitor: memory_monitor]]},
         {ReplacedTransaction.Supervisor, [[memory_monitor: memory_monitor]]},
+        configure(Indexer.Fetcher.Optimism.Supervisor, [[memory_monitor: memory_monitor]]),
+        configure(
+          Indexer.Fetcher.Optimism.TxnBatch.Supervisor,
+          [[memory_monitor: memory_monitor, json_rpc_named_arguments: json_rpc_named_arguments]]
+        ),
+        configure(Indexer.Fetcher.Optimism.OutputRoot.Supervisor, [[memory_monitor: memory_monitor]]),
+        configure(Indexer.Fetcher.Optimism.Deposit.Supervisor, [[memory_monitor: memory_monitor]]),
+        configure(
+          Indexer.Fetcher.Optimism.Withdrawal.Supervisor,
+          [[memory_monitor: memory_monitor, json_rpc_named_arguments: json_rpc_named_arguments]]
+        ),
+        configure(Indexer.Fetcher.Optimism.WithdrawalEvent.Supervisor, [[memory_monitor: memory_monitor]]),
         {Indexer.Fetcher.RollupL1ReorgMonitor.Supervisor, [[memory_monitor: memory_monitor]]},
         configure(Indexer.Fetcher.PolygonEdge.Deposit.Supervisor, [[memory_monitor: memory_monitor]]),
         configure(Indexer.Fetcher.PolygonEdge.DepositExecute.Supervisor, [
diff --git a/apps/indexer/lib/indexer/transform/addresses.ex b/apps/indexer/lib/indexer/transform/addresses.ex
index 543352d123..af645ba344 100644
--- a/apps/indexer/lib/indexer/transform/addresses.ex
+++ b/apps/indexer/lib/indexer/transform/addresses.ex
@@ -48,6 +48,8 @@ defmodule Indexer.Transform.Addresses do
       }
   """
 
+  alias Indexer.Helper
+
   @entity_to_address_map %{
     address_coin_balances: [
       [
@@ -506,7 +508,7 @@ defmodule Indexer.Transform.Addresses do
   end
 
   defp find_tx_action_addresses(block_number, value, accumulator) when is_binary(value) do
-    if is_address?(value) do
+    if Helper.address_correct?(value) do
       [%{:fetched_coin_balance_block_number => block_number, :hash => value} | accumulator]
     else
       accumulator
@@ -599,8 +601,4 @@ defmodule Indexer.Transform.Addresses do
   defp max_nil_last(first_integer, second_integer)
        when is_integer(first_integer) and is_integer(second_integer),
        do: max(first_integer, second_integer)
-
-  defp is_address?(value) when is_binary(value) do
-    String.match?(value, ~r/^0x[[:xdigit:]]{40}$/i)
-  end
 end
diff --git a/apps/indexer/lib/indexer/transform/optimism/withdrawals.ex b/apps/indexer/lib/indexer/transform/optimism/withdrawals.ex
new file mode 100644
index 0000000000..f82dd4fcdd
--- /dev/null
+++ b/apps/indexer/lib/indexer/transform/optimism/withdrawals.ex
@@ -0,0 +1,49 @@
+defmodule Indexer.Transform.Optimism.Withdrawals do
+  @moduledoc """
+  Helper functions for transforming data for Optimism withdrawals.
+  """
+
+  require Logger
+
+  alias Indexer.Fetcher.Optimism.Withdrawal, as: OptimismWithdrawal
+  alias Indexer.Helper
+
+  # 32-byte signature of the event MessagePassed(uint256 indexed nonce, address indexed sender, address indexed target, uint256 value, uint256 gasLimit, bytes data, bytes32 withdrawalHash)
+  @message_passed_event "0x02a52367d10742d8032712c1bb8e0144ff1ec5ffda1ed7d70bb05a2744955054"
+
+  @doc """
+  Returns a list of withdrawals given a list of logs.
+  """
+  def parse(logs) do
+    prev_metadata = Logger.metadata()
+    Logger.metadata(fetcher: :optimism_withdrawals_realtime)
+
+    items =
+      with false <- is_nil(Application.get_env(:indexer, Indexer.Fetcher.OptimismWithdrawal)[:start_block_l2]),
+           message_passer = Application.get_env(:indexer, Indexer.Fetcher.OptimismWithdrawal)[:message_passer],
+           true <- Helper.address_correct?(message_passer) do
+        message_passer = String.downcase(message_passer)
+
+        logs
+        |> Enum.filter(fn log ->
+          !is_nil(log.first_topic) && String.downcase(log.first_topic) == @message_passed_event &&
+            String.downcase(Helper.address_hash_to_string(log.address_hash)) == message_passer
+        end)
+        |> Enum.map(fn log ->
+          Logger.info("Withdrawal message found, nonce: #{log.second_topic}.")
+          OptimismWithdrawal.event_to_withdrawal(log.second_topic, log.data, log.transaction_hash, log.block_number)
+        end)
+      else
+        true ->
+          []
+
+        false ->
+          Logger.error("L2ToL1MessagePasser contract address is incorrect. Cannot use #{__MODULE__} for parsing logs.")
+          []
+      end
+
+    Logger.reset_metadata(prev_metadata)
+
+    items
+  end
+end
diff --git a/apps/indexer/lib/indexer/transform/polygon_zkevm/bridge.ex b/apps/indexer/lib/indexer/transform/polygon_zkevm/bridge.ex
index 441e6950d1..4ee7fa4126 100644
--- a/apps/indexer/lib/indexer/transform/polygon_zkevm/bridge.ex
+++ b/apps/indexer/lib/indexer/transform/polygon_zkevm/bridge.ex
@@ -21,7 +21,7 @@ defmodule Indexer.Transform.PolygonZkevm.Bridge do
 
     items =
       with false <- is_nil(Application.get_env(:indexer, BridgeL2)[:start_block]),
-           false <- System.get_env("CHAIN_TYPE") != "polygon_zkevm",
+           false <- Application.get_env(:explorer, :chain_type) != "polygon_zkevm",
            rpc_l1 = Application.get_all_env(:indexer)[BridgeL1][:rpc],
            {:rpc_l1_undefined, false} <- {:rpc_l1_undefined, is_nil(rpc_l1)},
            bridge_contract = Application.get_env(:indexer, BridgeL2)[:bridge_contract],
@@ -33,7 +33,7 @@ defmodule Indexer.Transform.PolygonZkevm.Bridge do
         start_block = Enum.min(block_numbers)
         end_block = Enum.max(block_numbers)
 
-        Helper.log_blocks_chunk_handling(start_block, end_block, start_block, end_block, nil, "L2")
+        Helper.log_blocks_chunk_handling(start_block, end_block, start_block, end_block, nil, :L2)
 
         json_rpc_named_arguments_l1 = Helper.json_rpc_named_arguments(rpc_l1)
 
@@ -50,7 +50,7 @@ defmodule Indexer.Transform.PolygonZkevm.Bridge do
           start_block,
           end_block,
           "#{Enum.count(items)} L2 operation(s)",
-          "L2"
+          :L2
         )
 
         items
diff --git a/apps/indexer/lib/indexer/transform/shibarium/bridge.ex b/apps/indexer/lib/indexer/transform/shibarium/bridge.ex
index 950d187d8b..ddf734507e 100644
--- a/apps/indexer/lib/indexer/transform/shibarium/bridge.ex
+++ b/apps/indexer/lib/indexer/transform/shibarium/bridge.ex
@@ -24,7 +24,7 @@ defmodule Indexer.Transform.Shibarium.Bridge do
 
     items =
       with false <- is_nil(Application.get_env(:indexer, Indexer.Fetcher.Shibarium.L2)[:start_block]),
-           false <- System.get_env("CHAIN_TYPE") != "shibarium",
+           false <- Application.get_env(:explorer, :chain_type) != "shibarium",
            child_chain = Application.get_env(:indexer, Indexer.Fetcher.Shibarium.L2)[:child_chain],
            weth = Application.get_env(:indexer, Indexer.Fetcher.Shibarium.L2)[:weth],
            bone_withdraw = Application.get_env(:indexer, Indexer.Fetcher.Shibarium.L2)[:bone_withdraw],
@@ -39,7 +39,7 @@ defmodule Indexer.Transform.Shibarium.Bridge do
         start_block = Enum.min(block_numbers)
         end_block = Enum.max(block_numbers)
 
-        Helper.log_blocks_chunk_handling(start_block, end_block, start_block, end_block, nil, "L2")
+        Helper.log_blocks_chunk_handling(start_block, end_block, start_block, end_block, nil, :L2)
 
         deposit_transaction_hashes =
           transactions_with_receipts
@@ -76,7 +76,7 @@ defmodule Indexer.Transform.Shibarium.Bridge do
           start_block,
           end_block,
           "#{Enum.count(operations)} L2 operation(s)",
-          "L2"
+          :L2
         )
 
         items
diff --git a/apps/indexer/lib/indexer/transform/token_transfers.ex b/apps/indexer/lib/indexer/transform/token_transfers.ex
index 5163c5f7f4..5acc4ce0fd 100644
--- a/apps/indexer/lib/indexer/transform/token_transfers.ex
+++ b/apps/indexer/lib/indexer/transform/token_transfers.ex
@@ -6,9 +6,8 @@ defmodule Indexer.Transform.TokenTransfers do
   require Logger
 
   import Explorer.Chain.SmartContract, only: [burn_address_hash_string: 0]
-  import Explorer.Helper, only: [decode_data: 2]
 
-  alias Explorer.Repo
+  alias Explorer.{Helper, Repo}
   alias Explorer.Chain.{Token, TokenTransfer}
   alias Indexer.Fetcher.TokenTotalSupplyUpdater
 
@@ -177,7 +176,7 @@ defmodule Indexer.Transform.TokenTransfers do
   # ERC-20 token transfer
   defp parse_params(%{second_topic: second_topic, third_topic: third_topic, fourth_topic: nil} = log)
        when not is_nil(second_topic) and not is_nil(third_topic) do
-    [amount] = decode_data(log.data, [{:uint, 256}])
+    [amount] = Helper.decode_data(log.data, [{:uint, 256}])
 
     token_transfer = %{
       amount: Decimal.new(amount || 0),
@@ -203,7 +202,7 @@ defmodule Indexer.Transform.TokenTransfers do
   # ERC-20 token transfer for WETH
   defp parse_params(%{second_topic: second_topic, third_topic: nil, fourth_topic: nil} = log)
        when not is_nil(second_topic) do
-    [amount] = decode_data(log.data, [{:uint, 256}])
+    [amount] = Helper.decode_data(log.data, [{:uint, 256}])
 
     {from_address_hash, to_address_hash} =
       if log.first_topic == TokenTransfer.weth_deposit_signature() do
@@ -236,7 +235,7 @@ defmodule Indexer.Transform.TokenTransfers do
   # ERC-721 token transfer with topics as addresses
   defp parse_params(%{second_topic: second_topic, third_topic: third_topic, fourth_topic: fourth_topic} = log)
        when not is_nil(second_topic) and not is_nil(third_topic) and not is_nil(fourth_topic) do
-    [token_id] = decode_data(fourth_topic, [{:uint, 256}])
+    [token_id] = Helper.decode_data(fourth_topic, [{:uint, 256}])
 
     token_transfer = %{
       block_number: log.block_number,
@@ -268,7 +267,7 @@ defmodule Indexer.Transform.TokenTransfers do
          } = log
        )
        when not is_nil(data) do
-    [from_address_hash, to_address_hash, token_id] = decode_data(data, [:address, :address, {:uint, 256}])
+    [from_address_hash, to_address_hash, token_id] = Helper.decode_data(data, [:address, :address, {:uint, 256}])
 
     token_transfer = %{
       block_number: log.block_number,
@@ -298,7 +297,7 @@ defmodule Indexer.Transform.TokenTransfers do
           data: data
         } = log
       ) do
-    [token_ids, values] = decode_data(data, [{:array, {:uint, 256}}, {:array, {:uint, 256}}])
+    [token_ids, values] = Helper.decode_data(data, [{:array, {:uint, 256}}, {:array, {:uint, 256}}])
 
     if is_nil(token_ids) or token_ids == [] or is_nil(values) or values == [] do
       nil
@@ -326,7 +325,7 @@ defmodule Indexer.Transform.TokenTransfers do
   end
 
   def parse_erc1155_params(%{third_topic: third_topic, fourth_topic: fourth_topic, data: data} = log) do
-    [token_id, value] = decode_data(data, [{:uint, 256}, {:uint, 256}])
+    [token_id, value] = Helper.decode_data(data, [{:uint, 256}, {:uint, 256}])
 
     token_transfer = %{
       amount: value,
diff --git a/apps/indexer/mix.exs b/apps/indexer/mix.exs
index ae4e632383..58bdf7c312 100644
--- a/apps/indexer/mix.exs
+++ b/apps/indexer/mix.exs
@@ -14,7 +14,17 @@ defmodule Indexer.MixProject do
       elixirc_paths: elixirc_paths(Mix.env()),
       lockfile: "../../mix.lock",
       start_permanent: Mix.env() == :prod,
-      version: "6.2.2"
+      version: "6.2.2",
+      xref: [
+        exclude: [
+          Explorer.Chain.Optimism.Deposit,
+          Explorer.Chain.Optimism.FrameSequence,
+          Explorer.Chain.Optimism.OutputRoot,
+          Explorer.Chain.Optimism.TxnBatch,
+          Explorer.Chain.Optimism.Withdrawal,
+          Explorer.Chain.Optimism.WithdrawalEvent
+        ]
+      ]
     ]
   end
 
@@ -56,7 +66,8 @@ defmodule Indexer.MixProject do
       {:spandex, "~> 3.0"},
       # `:spandex` integration with Datadog
       {:spandex_datadog, "~> 1.0"},
-      {:logger_json, "~> 5.1"}
+      {:logger_json, "~> 5.1"},
+      {:varint, "~> 1.4"}
     ]
   end
 
diff --git a/config/config_helper.exs b/config/config_helper.exs
index 45e34c40cd..a5c0a2e67f 100644
--- a/config/config_helper.exs
+++ b/config/config_helper.exs
@@ -10,6 +10,7 @@ defmodule ConfigHelper do
     repos =
       case System.get_env("CHAIN_TYPE") do
         "ethereum" -> base_repos ++ [Explorer.Repo.Beacon]
+        "optimism" -> base_repos ++ [Explorer.Repo.Optimism]
         "polygon_edge" -> base_repos ++ [Explorer.Repo.PolygonEdge]
         "polygon_zkevm" -> base_repos ++ [Explorer.Repo.PolygonZkevm]
         "rsk" -> base_repos ++ [Explorer.Repo.RSK]
diff --git a/config/runtime.exs b/config/runtime.exs
index 3b7ec8e420..7f17424b8b 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -259,6 +259,8 @@ config :explorer, Explorer.Chain.Cache.RootstockLockedBTC,
   global_ttl: ConfigHelper.parse_time_env_var("ROOTSTOCK_LOCKED_BTC_CACHE_PERIOD", "10m"),
   locking_cap: ConfigHelper.parse_integer_env_var("ROOTSTOCK_LOCKING_CAP", 21_000_000)
 
+config :explorer, Explorer.Chain.Cache.OptimismFinalizationPeriod, enabled: ConfigHelper.chain_type() == "optimism"
+
 config :explorer, Explorer.Counters.AddressTransactionsGasUsageCounter,
   cache_period: ConfigHelper.parse_time_env_var("CACHE_ADDRESS_TRANSACTIONS_GAS_USAGE_COUNTER_PERIOD", "30m")
 
@@ -681,6 +683,39 @@ config :indexer, Indexer.Fetcher.CoinBalance.Realtime,
   batch_size: coin_balances_batch_size,
   concurrency: coin_balances_concurrency
 
+config :indexer, Indexer.Fetcher.Optimism.Supervisor, enabled: ConfigHelper.chain_type() == "optimism"
+config :indexer, Indexer.Fetcher.Optimism.TxnBatch.Supervisor, enabled: ConfigHelper.chain_type() == "optimism"
+config :indexer, Indexer.Fetcher.Optimism.OutputRoot.Supervisor, enabled: ConfigHelper.chain_type() == "optimism"
+config :indexer, Indexer.Fetcher.Optimism.Deposit.Supervisor, enabled: ConfigHelper.chain_type() == "optimism"
+config :indexer, Indexer.Fetcher.Optimism.Withdrawal.Supervisor, enabled: ConfigHelper.chain_type() == "optimism"
+config :indexer, Indexer.Fetcher.Optimism.WithdrawalEvent.Supervisor, enabled: ConfigHelper.chain_type() == "optimism"
+
+config :indexer, Indexer.Fetcher.Optimism,
+  optimism_l1_rpc: System.get_env("INDEXER_OPTIMISM_L1_RPC"),
+  optimism_l1_portal: System.get_env("INDEXER_OPTIMISM_L1_PORTAL_CONTRACT")
+
+config :indexer, Indexer.Fetcher.Optimism.Deposit,
+  start_block_l1: System.get_env("INDEXER_OPTIMISM_L1_DEPOSITS_START_BLOCK"),
+  batch_size: System.get_env("INDEXER_OPTIMISM_L1_DEPOSITS_BATCH_SIZE")
+
+config :indexer, Indexer.Fetcher.Optimism.OutputRoot,
+  start_block_l1: System.get_env("INDEXER_OPTIMISM_L1_OUTPUT_ROOTS_START_BLOCK"),
+  output_oracle: System.get_env("INDEXER_OPTIMISM_L1_OUTPUT_ORACLE_CONTRACT")
+
+config :indexer, Indexer.Fetcher.Optimism.Withdrawal,
+  start_block_l2: System.get_env("INDEXER_OPTIMISM_L2_WITHDRAWALS_START_BLOCK"),
+  message_passer: System.get_env("INDEXER_OPTIMISM_L2_MESSAGE_PASSER_CONTRACT")
+
+config :indexer, Indexer.Fetcher.Optimism.WithdrawalEvent,
+  start_block_l1: System.get_env("INDEXER_OPTIMISM_L1_WITHDRAWALS_START_BLOCK")
+
+config :indexer, Indexer.Fetcher.Optimism.TxnBatch,
+  start_block_l1: System.get_env("INDEXER_OPTIMISM_L1_BATCH_START_BLOCK"),
+  batch_inbox: System.get_env("INDEXER_OPTIMISM_L1_BATCH_INBOX"),
+  batch_submitter: System.get_env("INDEXER_OPTIMISM_L1_BATCH_SUBMITTER"),
+  blocks_chunk_size: System.get_env("INDEXER_OPTIMISM_L1_BATCH_BLOCKS_CHUNK_SIZE", "4"),
+  genesis_block_l2: ConfigHelper.parse_integer_or_nil_env_var("INDEXER_OPTIMISM_L2_BATCH_GENESIS_BLOCK_NUMBER")
+
 config :indexer, Indexer.Fetcher.Withdrawal.Supervisor,
   disabled?: System.get_env("INDEXER_DISABLE_WITHDRAWALS_FETCHER", "true") == "true"
 
diff --git a/config/runtime/dev.exs b/config/runtime/dev.exs
index 12809ebda8..12b0d3bde8 100644
--- a/config/runtime/dev.exs
+++ b/config/runtime/dev.exs
@@ -92,6 +92,13 @@ config :explorer, Explorer.Repo.BridgedTokens,
   # separating repos for different CHAIN_TYPE is implemented only for the sake of keeping DB schema update relevant to the current chain type
   pool_size: 1
 
+# Configure Optimism database
+config :explorer, Explorer.Repo.Optimism,
+  database: database,
+  hostname: hostname,
+  url: System.get_env("DATABASE_URL"),
+  pool_size: 1
+
 # Configure PolygonEdge database
 config :explorer, Explorer.Repo.PolygonEdge,
   database: database,
diff --git a/config/runtime/prod.exs b/config/runtime/prod.exs
index 7474cde488..abf8c2137d 100644
--- a/config/runtime/prod.exs
+++ b/config/runtime/prod.exs
@@ -67,6 +67,12 @@ config :explorer, Explorer.Repo.BridgedTokens,
   pool_size: 1,
   ssl: ExplorerConfigHelper.ssl_enabled?()
 
+# Configures Optimism database
+config :explorer, Explorer.Repo.Optimism,
+  url: System.get_env("DATABASE_URL"),
+  pool_size: 1,
+  ssl: ExplorerConfigHelper.ssl_enabled?()
+
 # Configures PolygonEdge database
 config :explorer, Explorer.Repo.PolygonEdge,
   url: System.get_env("DATABASE_URL"),
diff --git a/cspell.json b/cspell.json
index 691c40233b..e3c50bb6d4 100644
--- a/cspell.json
+++ b/cspell.json
@@ -203,6 +203,7 @@
         "graphiql",
         "grecaptcha",
         "greymatter",
+        "gtag",
         "happygokitty",
         "haspopup",
         "Hazkne",
@@ -387,8 +388,10 @@
         "recollated",
         "redix",
         "refetched",
+        "regclass",
         "REINDEX",
         "relname",
+        "relpages",
         "reltuples",
         "remasc",
         "removedfile",
@@ -412,6 +415,7 @@
         "selfdestruct",
         "selfdestructed",
         "SENDGRID",
+        "Sepolia",
         "Sérgio",
         "sharelock",
         "sharelocks",
@@ -519,6 +523,7 @@
         "valuemax",
         "valuemin",
         "valuenow",
+        "varint",
         "verifysourcecode",
         "viewerjs",
         "volumefrom",
diff --git a/docker-compose/envs/common-blockscout.env b/docker-compose/envs/common-blockscout.env
index dff3a43c50..5738154d2b 100644
--- a/docker-compose/envs/common-blockscout.env
+++ b/docker-compose/envs/common-blockscout.env
@@ -193,6 +193,20 @@ INDEXER_DISABLE_INTERNAL_TRANSACTIONS_FETCHER=false
 # INDEXER_TOKEN_BALANCES_FETCHER_INIT_QUERY_LIMIT=
 # INDEXER_COIN_BALANCES_FETCHER_INIT_QUERY_LIMIT=
 # WITHDRAWALS_FIRST_BLOCK=
+# INDEXER_OPTIMISM_L1_RPC=
+# INDEXER_OPTIMISM_L1_BATCH_START_BLOCK=
+# INDEXER_OPTIMISM_L1_BATCH_INBOX=
+# INDEXER_OPTIMISM_L1_BATCH_SUBMITTER=
+# INDEXER_OPTIMISM_L1_BATCH_BLOCKS_CHUNK_SIZE=
+# INDEXER_OPTIMISM_L2_BATCH_GENESIS_BLOCK_NUMBER=
+# INDEXER_OPTIMISM_L1_PORTAL_CONTRACT=
+# INDEXER_OPTIMISM_L1_OUTPUT_ROOTS_START_BLOCK=
+# INDEXER_OPTIMISM_L1_OUTPUT_ORACLE_CONTRACT=
+# INDEXER_OPTIMISM_L1_WITHDRAWALS_START_BLOCK=
+# INDEXER_OPTIMISM_L2_WITHDRAWALS_START_BLOCK=
+# INDEXER_OPTIMISM_L2_MESSAGE_PASSER_CONTRACT=
+# INDEXER_OPTIMISM_L1_DEPOSITS_START_BLOCK=
+# INDEXER_OPTIMISM_L1_DEPOSITS_BATCH_SIZE=
 # ROOTSTOCK_REMASC_ADDRESS=
 # ROOTSTOCK_BRIDGE_ADDRESS=
 # ROOTSTOCK_LOCKED_BTC_CACHE_PERIOD=
diff --git a/mix.lock b/mix.lock
index f2dfe2a39a..8908d5bde6 100644
--- a/mix.lock
+++ b/mix.lock
@@ -140,6 +140,7 @@
   "ueberauth": {:hex, :ueberauth, "0.10.7", "5a31cbe11e7ce5c7484d745dc9e1f11948e89662f8510d03c616de03df581ebd", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "0bccf73e2ffd6337971340832947ba232877aa8122dba4c95be9f729c8987377"},
   "ueberauth_auth0": {:hex, :ueberauth_auth0, "2.1.0", "0632d5844049fa2f26823f15e1120aa32f27df6f27ce515a4b04641736594bf4", [:mix], [{:oauth2, "~> 2.0", [hex: :oauth2, repo: "hexpm", optional: false]}, {:ueberauth, "~> 0.7", [hex: :ueberauth, repo: "hexpm", optional: false]}], "hexpm", "8d3b30fa27c95c9e82c30c4afb016251405706d2e9627e603c3c9787fd1314fc"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
+  "varint": {:hex, :varint, "1.4.0", "b7405c8a99db7b95d4341fa9cb15e7c3af6c8dda43e21bbe1c4a9cdff50b6502", [:mix], [], "hexpm", "0fd461901b7120c03467530dff3c58fa3475328fd75ba72c7d3cbf13bce6b0d2"},
   "wallaby": {:hex, :wallaby, "0.30.6", "7dc4c1213f3b52c4152581d126632bc7e06892336d3a0f582853efeeabd45a71", [:mix], [{:ecto_sql, ">= 3.0.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}, {:httpoison, "~> 0.12 or ~> 1.0 or ~> 2.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:phoenix_ecto, ">= 3.0.0", [hex: :phoenix_ecto, repo: "hexpm", optional: true]}, {:web_driver_client, "~> 0.2.0", [hex: :web_driver_client, repo: "hexpm", optional: false]}], "hexpm", "50950c1d968549b54c20e16175c68c7fc0824138e2bb93feb11ef6add8eb23d4"},
   "web_driver_client": {:hex, :web_driver_client, "0.2.0", "63b76cd9eb3b0716ec5467a0f8bead73d3d9612e63f7560d21357f03ad86e31a", [:mix], [{:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:tesla, "~> 1.3", [hex: :tesla, repo: "hexpm", optional: false]}], "hexpm", "83cc6092bc3e74926d1c8455f0ce927d5d1d36707b74d9a65e38c084aab0350f"},
   "websocket_client": {:git, "https://github.com/blockscout/websocket_client.git", "0b4ecc5b1fb8a0bd1c8352728da787c20add53aa", [branch: "master"]},