# Verify using Hardhat

## Verify your Contract

To verify your smart contract(s) that are already deployed, refer the instructions in [Blockscout's Hardhat Contract Verification](https://docs.blockscout.com/devs/verification/hardhat-verification-plugin#verify) page. 

Run the following command on **Plume Testnet** for instance (switch the RPC and verifier URL to Mainnet to deploy on Plume Mainnet):

```sh
npx hardhat verify --network plume-testnet <your-contract-address>
```

{% hint style="warning" %}
Make sure to replace the details in the `<your-contract-address>` with your contract address.
{% endhint %}

### Sample Output

```
Successfully submitted source code for contract
contracts/RolexYachtMaster40.sol:Lock at 0x0c14F7df7f2B0c6F55851610849BA09f97732C9B
for verification on the block explorer. Waiting for verification result...

Successfully verified contract Lock on the block explorer.
https://testnet-explorer.plume.org/address/0x0c14F7df7f2B0c6F55851610849BA09f97732C9B#code
```


---

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