smart-contract-verification.md

Smart Contract Verification

https://explorer.harmony.one/verifycontract

Right now, we support verification only for one single solidity file - therefore, before deployment and verification, you will need to flatten all solidity sources to one file.

1. Flatten your Solidity Files

To flatten your solidity files we recommended to use Truffle Flattener lib.

npm install truffle-flattener -g
truffle-flattener <solidity-files>

Or you can use any other flattener lib.

2. Deploy Contract to Harmony

To easy the verification we recommend the contract deployment using Harmony Remix.

3. Verify Contract

You can verify your contract here: https://explorer.harmony.one/verifycontract

It is important to use the correct parameters (same as on deployment):

• Contract address
• Contract name
• Compiler version
• Optimizer
• Chain Type (mainnet or testnet)
• Sources
• Imported libs

Then click on Submit button. If all params are correct - you should to see a Success message, or an Error if bytecodes are not equal. On Success case - your contract will verify and you will see all contract details on contract explorer page.