diff --git a/apps/explorer/config/config.exs b/apps/explorer/config/config.exs
index 154f6f93b4..4cabe0c008 100644
--- a/apps/explorer/config/config.exs
+++ b/apps/explorer/config/config.exs
@@ -32,6 +32,12 @@ config :explorer, Explorer.Tracer,
   adapter: SpandexDatadog.Adapter,
   trace_key: :blockscout
 
+if System.get_env("METADATA_CONTRACT") && System.get_env("VALIDATORS_CONTRACT") do
+  config :explorer, Explorer.Validator.MetadataRetriever,
+    metadata_contract_address: System.get_env("METADATA_CONTRACT"),
+    validators_contract_address: System.get_env("VALIDATORS_CONTRACT")
+end
+
 if System.get_env("SUPPLY_MODULE") == "TransactionAndLog" do
   config :explorer, supply: Explorer.Chain.Supply.TransactionAndLog
 end
diff --git a/apps/explorer/priv/validator_contracts_abi/metadata.json b/apps/explorer/priv/validator_contracts_abi/metadata.json
new file mode 100644
index 0000000000..e6b619f843
--- /dev/null
+++ b/apps/explorer/priv/validator_contracts_abi/metadata.json
@@ -0,0 +1,579 @@
+[
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "pendingChanges",
+      "outputs": [
+        {
+          "name": "firstName",
+          "type": "bytes32"
+        },
+        {
+          "name": "lastName",
+          "type": "bytes32"
+        },
+        {
+          "name": "licenseId",
+          "type": "bytes32"
+        },
+        {
+          "name": "fullAddress",
+          "type": "string"
+        },
+        {
+          "name": "state",
+          "type": "bytes32"
+        },
+        {
+          "name": "zipcode",
+          "type": "bytes32"
+        },
+        {
+          "name": "expirationDate",
+          "type": "uint256"
+        },
+        {
+          "name": "createdDate",
+          "type": "uint256"
+        },
+        {
+          "name": "updatedDate",
+          "type": "uint256"
+        },
+        {
+          "name": "minThreshold",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x022c254a"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_firstName",
+          "type": "bytes32"
+        },
+        {
+          "name": "_lastName",
+          "type": "bytes32"
+        },
+        {
+          "name": "_licenseId",
+          "type": "bytes32"
+        },
+        {
+          "name": "_fullAddress",
+          "type": "string"
+        },
+        {
+          "name": "_state",
+          "type": "bytes32"
+        },
+        {
+          "name": "_zipcode",
+          "type": "bytes32"
+        },
+        {
+          "name": "_expirationDate",
+          "type": "uint256"
+        }
+      ],
+      "name": "createMetadata",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x334460a4"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "confirmations",
+      "outputs": [
+        {
+          "name": "count",
+          "type": "uint256"
+        },
+        {
+          "name": "voters",
+          "type": "address[]"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x4ecb35c4"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "finalize",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x4ef39b75"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getTime",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x557ed1ba"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "clearMetadata",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x885c69b5"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_firstName",
+          "type": "bytes32"
+        },
+        {
+          "name": "_lastName",
+          "type": "bytes32"
+        },
+        {
+          "name": "_licenseId",
+          "type": "bytes32"
+        },
+        {
+          "name": "_fullAddress",
+          "type": "string"
+        },
+        {
+          "name": "_state",
+          "type": "bytes32"
+        },
+        {
+          "name": "_zipcode",
+          "type": "bytes32"
+        },
+        {
+          "name": "_expirationDate",
+          "type": "uint256"
+        },
+        {
+          "name": "_createdDate",
+          "type": "uint256"
+        },
+        {
+          "name": "_updatedDate",
+          "type": "uint256"
+        },
+        {
+          "name": "_minThreshold",
+          "type": "uint256"
+        },
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "initMetadata",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x8ae881a6"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "confirmPendingChange",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x9c715535"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "initMetadataDisabled",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xa6662a3c"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "proxyStorage",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xae4b1b5b"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "getValidatorName",
+      "outputs": [
+        {
+          "name": "firstName",
+          "type": "bytes32"
+        },
+        {
+          "name": "lastName",
+          "type": "bytes32"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xaf2e2da9"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_oldMiningKey",
+          "type": "address"
+        },
+        {
+          "name": "_newMiningKey",
+          "type": "address"
+        }
+      ],
+      "name": "moveMetadata",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0xc2d0916f"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_firstName",
+          "type": "bytes32"
+        },
+        {
+          "name": "_lastName",
+          "type": "bytes32"
+        },
+        {
+          "name": "_licenseId",
+          "type": "bytes32"
+        },
+        {
+          "name": "_fullAddress",
+          "type": "string"
+        },
+        {
+          "name": "_state",
+          "type": "bytes32"
+        },
+        {
+          "name": "_zipcode",
+          "type": "bytes32"
+        },
+        {
+          "name": "_expirationDate",
+          "type": "uint256"
+        }
+      ],
+      "name": "changeRequest",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0xc3f1b0ea"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getMinThreshold",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xe6bbe9dd"
+    },
+    {
+      "constant": false,
+      "inputs": [],
+      "name": "initMetadataDisable",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0xf0174a25"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        },
+        {
+          "name": "_voterMiningKey",
+          "type": "address"
+        }
+      ],
+      "name": "isValidatorAlreadyVoted",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xf73294b8"
+    },
+    {
+      "constant": false,
+      "inputs": [],
+      "name": "cancelPendingChange",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0xf94c12cb"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "validators",
+      "outputs": [
+        {
+          "name": "firstName",
+          "type": "bytes32"
+        },
+        {
+          "name": "lastName",
+          "type": "bytes32"
+        },
+        {
+          "name": "licenseId",
+          "type": "bytes32"
+        },
+        {
+          "name": "fullAddress",
+          "type": "string"
+        },
+        {
+          "name": "state",
+          "type": "bytes32"
+        },
+        {
+          "name": "zipcode",
+          "type": "bytes32"
+        },
+        {
+          "name": "expirationDate",
+          "type": "uint256"
+        },
+        {
+          "name": "createdDate",
+          "type": "uint256"
+        },
+        {
+          "name": "updatedDate",
+          "type": "uint256"
+        },
+        {
+          "name": "minThreshold",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xfa52c7d8"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "MetadataCleared",
+      "type": "event",
+      "signature": "0x1928e25e316bab82325e01eaf5b4a29f7b2d5e3d77fc0b6ac959eb95112f3ee9"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "MetadataCreated",
+      "type": "event",
+      "signature": "0x76a10cc0839d166c55eec8dba39ff22f75470574ede5014b744b45cebea5fc7e"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "oldMiningKey",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "newMiningKey",
+          "type": "address"
+        }
+      ],
+      "name": "MetadataMoved",
+      "type": "event",
+      "signature": "0x6a3e5f5cc14de86bb3be87bc976b74890ecd0c8fa0cfca2fe3fefe55c9b47dde"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "ChangeRequestInitiated",
+      "type": "event",
+      "signature": "0x6ec0e3afd4b29a1fe1c688cb1e6474d9e2c6a1032858c3add0ff32b7ba95f32f"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "CancelledRequest",
+      "type": "event",
+      "signature": "0x5a1dcc05b2a41ad121a798e749b9ba9584177c68a4047ee52ef37d4ca76ce08c"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "miningKey",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "votingSender",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "name": "votingSenderMiningKey",
+          "type": "address"
+        }
+      ],
+      "name": "Confirmed",
+      "type": "event",
+      "signature": "0x603c57ecb4a9802537649ceb6523e5d48c939e7856768ce6f9b3128a889a5cfe"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "miningKey",
+          "type": "address"
+        }
+      ],
+      "name": "FinalizedChange",
+      "type": "event",
+      "signature": "0xccf0f685803f0fba33ec88246b35d75b758b1e77c3d65ef5658f7e630f36b85b"
+    }
+  ]
\ No newline at end of file
diff --git a/apps/explorer/priv/validator_contracts_abi/validators.json b/apps/explorer/priv/validator_contracts_abi/validators.json
new file mode 100644
index 0000000000..5ef15d04c6
--- /dev/null
+++ b/apps/explorer/priv/validator_contracts_abi/validators.json
@@ -0,0 +1,462 @@
+[
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "name": "pendingList",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x03aca792"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getCurrentValidatorsLength",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x0eaba26a"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_newAddress",
+          "type": "address"
+        }
+      ],
+      "name": "setProxyStorage",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x10855269"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_validator",
+          "type": "address"
+        },
+        {
+          "name": "_shouldFireEvent",
+          "type": "bool"
+        }
+      ],
+      "name": "addValidator",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x21a3fb85"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "isMasterOfCeremonyRemovedPending",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x273cb593"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "isMasterOfCeremonyRemoved",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x379fed9a"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "name": "validatorsState",
+      "outputs": [
+        {
+          "name": "isValidator",
+          "type": "bool"
+        },
+        {
+          "name": "isValidatorFinalized",
+          "type": "bool"
+        },
+        {
+          "name": "index",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x4110a489"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getPendingList",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address[]"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x45199e0a"
+    },
+    {
+      "constant": false,
+      "inputs": [],
+      "name": "finalizeChange",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x75286211"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_newKey",
+          "type": "address"
+        },
+        {
+          "name": "_oldKey",
+          "type": "address"
+        }
+      ],
+      "name": "swapValidatorKey",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x879736b2"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_someone",
+          "type": "address"
+        }
+      ],
+      "name": "isValidatorFinalized",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x8f2eabe1"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "name": "currentValidators",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x900eb5a8"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getKeysManager",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x9a573786"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "wasProxyStorageSet",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xa5f8b874"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getCurrentValidatorsLengthWithoutMoC",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xa8756337"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "proxyStorage",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xae4b1b5b"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "finalized",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xb3f05b97"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "getValidators",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address[]"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xb7ab4db5"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "systemAddress",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xd3e848f1"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "masterOfCeremonyPending",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xec7de1e9"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "_validator",
+          "type": "address"
+        },
+        {
+          "name": "_shouldFireEvent",
+          "type": "bool"
+        }
+      ],
+      "name": "removeValidator",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0xf89a77b1"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "masterOfCeremony",
+      "outputs": [
+        {
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xfa81b200"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "_someone",
+          "type": "address"
+        }
+      ],
+      "name": "isValidator",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xfacd743b"
+    },
+    {
+      "inputs": [
+        {
+          "name": "_masterOfCeremony",
+          "type": "address"
+        },
+        {
+          "name": "validators",
+          "type": "address[]"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor",
+      "signature": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "parentHash",
+          "type": "bytes32"
+        },
+        {
+          "indexed": false,
+          "name": "newSet",
+          "type": "address[]"
+        }
+      ],
+      "name": "InitiateChange",
+      "type": "event",
+      "signature": "0x55252fa6eee4741b4e24a74a70e9c11fd2c2281df8d6ea13126ff845f7825c89"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": false,
+          "name": "newSet",
+          "type": "address[]"
+        }
+      ],
+      "name": "ChangeFinalized",
+      "type": "event",
+      "signature": "0x8564cd629b15f47dc310d45bcbfc9bcf5420b0d51bf0659a16c67f91d2763253"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": false,
+          "name": "proxyStorage",
+          "type": "address"
+        }
+      ],
+      "name": "MoCInitializedProxyStorage",
+      "type": "event",
+      "signature": "0x600bcf04a13e752d1e3670a5a9f1c21177ca2a93c6f5391d4f1298d098097c22"
+    }
+  ]
\ No newline at end of file