Verify using Hardhat

Verifying a smart contract on the blockchain is an essential step to ensure its transparency, security and ease of interaction for users and other developers.

This project is a demonstration of how to verify a contract on blockscout using hardhat.

1. Clone repository

git clone https://github.com/alt-research/contract-verify-sample.git

2. Navigate to `hardhat` folder

cd hardhat

3. Install dependencies

yarn

4. Modify the `network` part in `hardhat.config.ts`

networks: {
    testnet: {
    url: '', // fill in rpc url
    chainId: 123, // fill in sample chain id
    accounts: ["0xfed4030d3379f87b009e9011b83c9e89a9d16411b039e7ca718453c2bd0d3aac"],
    }
},

5. Configure etherscan

etherscan: {
// dummy key "abc"
apiKey: {
  testnet: "abc",
},
customChains: [
  {
    network: "testnet",
    chainId: 123, // sample chain id
    urls: {
      apiURL: "", // fill in rpc url
      browserURL: "" // fill in explorer url
    }
  },
]
}

6. Deploy sample contract

npx hardhat run deploy.ts 
// deploy address = 0x5FC8d32690cc91D4c39d9d3abcBD16989F875707

7. Verify sample contract

npx hardhat verify --network testnet 0x5FC8d32690cc91D4c39d9d3abcBD16989F875707

8. Confirm verification

After executing the relevant command, visit the Xterio explorer (Mainnet / Testnet) to see your contract's status.

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