diff --git a/abi/OptimismL1CrossDomainMessengerProxy.abi.json b/abi/OptimismL1CrossDomainMessengerProxy.abi.json
new file mode 100644
index 0000000..ce73cfc
--- /dev/null
+++ b/abi/OptimismL1CrossDomainMessengerProxy.abi.json
@@ -0,0 +1,314 @@
+[
+  { "inputs": [], "stateMutability": "nonpayable", "type": "constructor" },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "bytes32",
+        "name": "msgHash",
+        "type": "bytes32"
+      }
+    ],
+    "name": "FailedRelayedMessage",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "internalType": "uint8",
+        "name": "version",
+        "type": "uint8"
+      }
+    ],
+    "name": "Initialized",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "bytes32",
+        "name": "msgHash",
+        "type": "bytes32"
+      }
+    ],
+    "name": "RelayedMessage",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "target",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "address",
+        "name": "sender",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "bytes",
+        "name": "message",
+        "type": "bytes"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "messageNonce",
+        "type": "uint256"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "gasLimit",
+        "type": "uint256"
+      }
+    ],
+    "name": "SentMessage",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "sender",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "uint256",
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "SentMessageExtension1",
+    "type": "event"
+  },
+  {
+    "inputs": [],
+    "name": "MESSAGE_VERSION",
+    "outputs": [{ "internalType": "uint16", "name": "", "type": "uint16" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "MIN_GAS_CALLDATA_OVERHEAD",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "MIN_GAS_DYNAMIC_OVERHEAD_DENOMINATOR",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "MIN_GAS_DYNAMIC_OVERHEAD_NUMERATOR",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "OTHER_MESSENGER",
+    "outputs": [
+      {
+        "internalType": "contract CrossDomainMessenger",
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "PORTAL",
+    "outputs": [
+      {
+        "internalType": "contract OptimismPortal",
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "RELAY_CALL_OVERHEAD",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "RELAY_CONSTANT_OVERHEAD",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "RELAY_GAS_CHECK_BUFFER",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "RELAY_RESERVED_GAS",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "bytes", "name": "_message", "type": "bytes" },
+      { "internalType": "uint32", "name": "_minGasLimit", "type": "uint32" }
+    ],
+    "name": "baseGas",
+    "outputs": [{ "internalType": "uint64", "name": "", "type": "uint64" }],
+    "stateMutability": "pure",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "bytes32", "name": "", "type": "bytes32" }],
+    "name": "failedMessages",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "contract SuperchainConfig",
+        "name": "_superchainConfig",
+        "type": "address"
+      },
+      {
+        "internalType": "contract OptimismPortal",
+        "name": "_portal",
+        "type": "address"
+      }
+    ],
+    "name": "initialize",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "messageNonce",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "otherMessenger",
+    "outputs": [
+      {
+        "internalType": "contract CrossDomainMessenger",
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "paused",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "portal",
+    "outputs": [
+      {
+        "internalType": "contract OptimismPortal",
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "uint256", "name": "_nonce", "type": "uint256" },
+      { "internalType": "address", "name": "_sender", "type": "address" },
+      { "internalType": "address", "name": "_target", "type": "address" },
+      { "internalType": "uint256", "name": "_value", "type": "uint256" },
+      { "internalType": "uint256", "name": "_minGasLimit", "type": "uint256" },
+      { "internalType": "bytes", "name": "_message", "type": "bytes" }
+    ],
+    "name": "relayMessage",
+    "outputs": [],
+    "stateMutability": "payable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "_target", "type": "address" },
+      { "internalType": "bytes", "name": "_message", "type": "bytes" },
+      { "internalType": "uint32", "name": "_minGasLimit", "type": "uint32" }
+    ],
+    "name": "sendMessage",
+    "outputs": [],
+    "stateMutability": "payable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "bytes32", "name": "", "type": "bytes32" }],
+    "name": "successfulMessages",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "superchainConfig",
+    "outputs": [
+      {
+        "internalType": "contract SuperchainConfig",
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "version",
+    "outputs": [{ "internalType": "string", "name": "", "type": "string" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "xDomainMessageSender",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  }
+]
diff --git a/modules/blockChain/contractAddresses.ts b/modules/blockChain/contractAddresses.ts
index c4b0e75..b4cc065 100644
--- a/modules/blockChain/contractAddresses.ts
+++ b/modules/blockChain/contractAddresses.ts
@@ -221,3 +221,8 @@ export const Snapshot: ChainAddressMap = {
 export const L1ERC20TokenBridge: ChainAddressMap = {
   [CHAINS.Mainnet]: '0x76943C0D61395d8F2edF9060e1533529cAe05dE6',
 }
+
+// Address reference: https://docs.optimism.io/chain/addresses#ethereum-l1
+export const OptimismL1CrossDomainMessengerProxy: ChainAddressMap = {
+  [CHAINS.Mainnet]: '0x25ace71c97B33Cc4729CF772ae268934F7ab5fA1',
+}
diff --git a/modules/votes/hooks/useEvmScriptDecoder.ts b/modules/votes/hooks/useEvmScriptDecoder.ts
index 3143c35..6d4b294 100644
--- a/modules/votes/hooks/useEvmScriptDecoder.ts
+++ b/modules/votes/hooks/useEvmScriptDecoder.ts
@@ -72,6 +72,8 @@ export function useEVMScriptDecoder(): EVMScriptDecoder {
       [KEYS.Burner]: abis.BurnerAbi__factory.abi,
       [KEYS.SimpleDVT]: abis.NodeOperatorsRegistryAbi__factory.abi,
       [KEYS.L1ERC20TokenBridge]: abis.L1ERC20TokenBridgeAbi__factory.abi,
+      [KEYS.OptimismL1CrossDomainMessengerProxy]:
+        abis.OptimismL1CrossDomainMessengerProxyAbi__factory.abi,
     })
 
     const etherscanDecoder = new abiProviders.Base({