Verify with Hardhat

npm add --save-dev @nomicfoundation/hardhat-verify

import { defineConfig } from "hardhat/config";
import hardhatVerify from "@nomicfoundation/hardhat-verify";

export default defineConfig({
  plugins: [
    hardhatVerify,
    // ...other plugins...
  ],
  solidity: "0.8.28",
  networks: {
    sepolia: {
      url: configVariable("SEPOLIA_RPC_URL"),
      accounts: [configVariable("SEPOLIA_PRIVATE_KEY")],
    },
  },
  verify: {
    etherscan: {
      apiKey: "YourEtherscanApiKey",
    },
  },
});

npx hardhat ignition deploy ignition/modules/Counter.ts --network sepolia --verify

npx hardhat verify --network sepolia 0xdCBdBAA8404554502B433106e62728B659aCfE3b

export default defineConfig({
  // ...
  networks: {
    monadTestnet: {
      type: "http",
      chainType: "l1",
      url: configVariable("MONAD_TESTNET_RPC_URL"),
      accounts: [configVariable("MONAD_TESTNET_PRIVATE_KEY")],
    }
  },
  chainDescriptors: {
    10143: {
      name: "monadTestnet",
      blockExplorers: {
        etherscan: {
          name: "Monad Testnet Explorer",
          url: "https://testnet.monadscan.com",
          apiUrl: "https://api.etherscan.io/v2/api",
        },
      },
    }
  },
});

npx hardhat ignition deploy ignition/modules/Counter.ts --network monadTestnet --verify