diff --git a/apps/explorer/lib/explorer/chain/arbitrum/reader.ex b/apps/explorer/lib/explorer/chain/arbitrum/reader.ex
index e944d588ca..1d5916fcf4 100644
--- a/apps/explorer/lib/explorer/chain/arbitrum/reader.ex
+++ b/apps/explorer/lib/explorer/chain/arbitrum/reader.ex
@@ -40,7 +40,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
       )
 
     query
-    |> Repo.one()
+    |> Repo.one(timeout: :infinity)
   end
 
   @doc """
@@ -60,7 +60,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
       )
 
     query
-    |> Repo.one()
+    |> Repo.one(timeout: :infinity)
   end
 
   @doc """
@@ -86,7 +86,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
     |> order_by(desc: :block_number)
     |> limit(1)
     |> select([log], log.block_number)
-    |> Repo.one()
+    |> Repo.one(timeout: :infinity)
   end
 
   @doc """
@@ -107,7 +107,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
     |> order_by(desc: :block_number)
     |> limit(1)
     |> select([rollup_tx], rollup_tx.block_number)
-    |> Repo.one()
+    |> Repo.one(timeout: :infinity)
   end
 
   @doc """
@@ -132,7 +132,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
     case query
          # :required is used since the situation when commit transaction is not found is not possible
          |> Chain.join_associations(%{:commitment_transaction => :required})
-         |> Repo.one() do
+         |> Repo.one(timeout: :infinity) do
       nil -> nil
       batch -> batch.commitment_transaction.block_number
     end
@@ -160,7 +160,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
     case query
          # :required is used since the situation when commit transaction is not found is not possible
          |> Chain.join_associations(%{:commitment_transaction => :required})
-         |> Repo.one() do
+         |> Repo.one(timeout: :infinity) do
       nil -> nil
       batch -> batch.commitment_transaction.block_number
     end
@@ -205,7 +205,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         where: lt.hash in ^l1_tx_hashes
       )
 
-    Repo.all(query, timeout: :infinity)
+    Repo.all(query)
   end
 
   @doc """
@@ -227,7 +227,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         where: lt.hash in ^l1_tx_hashes
       )
 
-    Repo.all(query, timeout: :infinity)
+    Repo.all(query)
   end
 
   @doc """
@@ -253,7 +253,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
     # :required is used since execution records in the table are created only when
     # the corresponding execution transaction is indexed
     |> Chain.join_associations(%{:execution_transaction => :required})
-    |> Repo.all(timeout: :infinity)
+    |> Repo.all()
   end
 
   @doc """
@@ -305,7 +305,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         where: lt.block_number <= ^finalized_block and lt.status == :unfinalized
       )
 
-    Repo.all(query, timeout: :infinity)
+    Repo.all(query)
   end
 
   @doc """
@@ -357,7 +357,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
       )
 
     query
-    |> Repo.all(timeout: :infinity)
+    |> Repo.all()
   end
 
   @doc """
@@ -426,7 +426,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
     case query
          # :required is used since existence of the confirmation id is checked above
          |> Chain.join_associations(%{:confirmation_transaction => :required})
-         |> Repo.one() do
+         |> Repo.one(timeout: :infinity) do
       nil ->
         nil
 
@@ -480,7 +480,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
       )
 
     query
-    |> Repo.one()
+    |> Repo.one(timeout: :infinity)
   end
 
   @doc """
@@ -502,7 +502,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
       )
 
     query
-    |> Repo.one()
+    |> Repo.one(timeout: :infinity)
   end
 
   @doc """
@@ -532,7 +532,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         order_by: [asc: rb.block_number]
       )
 
-    Repo.all(query, timeout: :infinity)
+    Repo.all(query)
   end
 
   @doc """
@@ -553,7 +553,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         where: rb.batch_number == ^batch_number and not is_nil(rb.confirmation_id)
       )
 
-    Repo.aggregate(query, :count, timeout: :infinity)
+    Repo.aggregate(query, :count)
   end
 
   @doc """
@@ -588,7 +588,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         order_by: [desc: msg.message_id]
       )
 
-    Repo.all(query, timeout: :infinity)
+    Repo.all(query)
   end
 
   def l2_to_l1_messages(status, nil) when status in [:initiated, :sent, :confirmed, :relayed] do
@@ -598,7 +598,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         order_by: [desc: msg.message_id]
       )
 
-    Repo.all(query, timeout: :infinity)
+    Repo.all(query)
   end
 
   @doc """
@@ -704,7 +704,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
   defp do_messages_count(direction, options) do
     Message
     |> where([msg], msg.direction == ^direction)
-    |> select_repo(options).aggregate(:count, timeout: :infinity)
+    |> select_repo(options).aggregate(:count)
   end
 
   @doc """
@@ -1223,7 +1223,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
       )
 
     query
-    |> Repo.all(timeout: :infinity)
+    |> Repo.all()
   end
 
   @doc """
@@ -1248,7 +1248,7 @@ defmodule Explorer.Chain.Arbitrum.Reader do
       )
 
     query
-    |> Repo.all(timeout: :infinity)
+    |> Repo.all()
     |> Enum.reduce(%{}, fn {batch_number, l1_block_number}, acc ->
       Map.put(acc, batch_number, l1_block_number)
     end)
@@ -1267,6 +1267,63 @@ defmodule Explorer.Chain.Arbitrum.Reader do
         select: {min(batch.number), max(batch.number)}
       )
 
-    Repo.one(query)
+    Repo.one(query, timeout: :infinity)
+  end
+
+  #####################################################################################
+  ### Below are the functions that implement functionality not specific to Arbitrum ###
+  #####################################################################################
+
+  @doc """
+    Checks if a block with the given block number exists.
+
+    This function queries the database to determine if a block with the specified
+    block number exists and has been marked as having reached consensus.
+
+    ## Parameters
+    - `block_number`: The number of the block to check.
+
+    ## Returns
+    - `true` if the block exists and has reached consensus.
+    - `false` otherwise.
+  """
+  @spec rollup_block_exists?(FullBlock.block_number()) :: boolean()
+  def rollup_block_exists?(block_number) do
+    query =
+      from(
+        block in FullBlock,
+        where: block.number == ^block_number and block.consensus == true
+      )
+
+    Repo.exists?(query, timeout: :infinity)
+  end
+
+  @doc """
+    Retrieves full details of rollup blocks, including associated transactions, for each
+    block number specified in the input list.
+
+    ## Parameters
+    - `list_of_block_numbers`: A list of block numbers for which full block details are to be retrieved.
+
+    ## Returns
+    - A list of `Explorer.Chain.Block` instances containing detailed information for each
+      block number in the input list. Returns an empty list if no blocks are found for the given numbers.
+  """
+  @spec rollup_blocks([FullBlock.block_number()]) :: [FullBlock.t()]
+  def rollup_blocks(list_of_block_numbers)
+
+  def rollup_blocks([]), do: []
+
+  def rollup_blocks(list_of_block_numbers) do
+    query =
+      from(
+        block in FullBlock,
+        where: block.number in ^list_of_block_numbers
+      )
+
+    query
+    # :optional is used since a block may not have any transactions
+    |> Chain.join_associations(%{:transactions => :optional})
+    |> Repo.all()
   end
 end
diff --git a/apps/indexer/lib/indexer/fetcher/arbitrum/utils/db.ex b/apps/indexer/lib/indexer/fetcher/arbitrum/utils/db.ex
index 66fe5b7035..8c9c640e12 100644
--- a/apps/indexer/lib/indexer/fetcher/arbitrum/utils/db.ex
+++ b/apps/indexer/lib/indexer/fetcher/arbitrum/utils/db.ex
@@ -3,11 +3,9 @@ defmodule Indexer.Fetcher.Arbitrum.Utils.Db do
     Common functions to simplify DB routines for Indexer.Fetcher.Arbitrum fetchers
   """
 
-  import Ecto.Query, only: [from: 2]
-
   import Indexer.Fetcher.Arbitrum.Utils.Logging, only: [log_warning: 1, log_info: 1]
 
-  alias Explorer.{Chain, Repo}
+  alias Explorer.Chain
   alias Explorer.Chain.Arbitrum
   alias Explorer.Chain.Arbitrum.Reader
   alias Explorer.Chain.Block, as: FullBlock
@@ -388,8 +386,7 @@ defmodule Indexer.Fetcher.Arbitrum.Utils.Db do
   end
 
   @doc """
-    Retrieves full details of rollup blocks, including associated transactions, for each
-    block number specified in the input list.
+    Retrieves full details of rollup blocks, including associated transactions, for each block number specified in the input list.
 
     ## Parameters
     - `list_of_block_numbers`: A list of block numbers for which full block details are to be retrieved.
@@ -399,23 +396,7 @@ defmodule Indexer.Fetcher.Arbitrum.Utils.Db do
       block number in the input list. Returns an empty list if no blocks are found for the given numbers.
   """
   @spec rollup_blocks([FullBlock.block_number()]) :: [FullBlock.t()]
-  def rollup_blocks(list_of_block_numbers)
-
-  def rollup_blocks([]), do: []
-
-  def rollup_blocks(list_of_block_numbers)
-      when is_list(list_of_block_numbers) do
-    query =
-      from(
-        block in FullBlock,
-        where: block.number in ^list_of_block_numbers
-      )
-
-    query
-    # :optional is used since a block may not have any transactions
-    |> Chain.join_associations(%{:transactions => :optional})
-    |> Repo.all(timeout: :infinity)
-  end
+  def rollup_blocks(list_of_block_numbers), do: Reader.rollup_blocks(list_of_block_numbers)
 
   @doc """
     Retrieves unfinalized L1 transactions that are involved in changing the statuses
@@ -942,13 +923,7 @@ defmodule Indexer.Fetcher.Arbitrum.Utils.Db do
     # the block just after it
     rollup_tail = Application.get_all_env(:indexer)[:first_block] + 1
 
-    query =
-      from(
-        block in FullBlock,
-        where: block.number == ^rollup_tail and block.consensus == true
-      )
-
-    if(is_nil(query |> Repo.one()), do: false, else: true)
+    Reader.rollup_block_exists?(rollup_tail)
   end
 
   @spec lifecycle_transaction_to_map(Arbitrum.LifecycleTransaction.t()) :: Arbitrum.LifecycleTransaction.to_import()