# Cannot verify contract deployed via Remix

**URL:** <https://forum.openzeppelin.com/t/cannot-verify-contract-deployed-via-remix/4809>\
**Category:** Contracts\
**Created:** [November 27, 2020, 8:13am UTC](https://forum.openzeppelin.com/t/cannot-verify-contract-deployed-via-remix/4809 "2020-11-27T08:13:33Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![abcoathup](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/abcoathup/32/415_2.png) [@abcoathup](https://forum.openzeppelin.com/u/abcoathup)\
**Post date:** [November 30, 2020, 4:43am UTC](https://forum.openzeppelin.com/t/cannot-verify-contract-deployed-via-remix/4809/5 "2020-11-30T04:43:00Z")

</div>

Hi @Lifexcel,

I verified the contract: [https://etherscan.io/address/0x0a6EBca8c0Ae2C540d30BEC35BFA00CEAa7f7B3F#code](https://etherscan.io/address/0x0a6EBca8c0Ae2C540d30BEC35BFA00CEAa7f7B3F#code)

I used the following method with the Hardhat Etherscan plugin: [Verify smart contract inheriting from OpenZeppelin Contracts](https://forum.openzeppelin.com/t/verify-smart-contract-inheriting-from-openzeppelin-contracts/4119)

The contract bytecode ends with 511, which means it was compiled with Solidity 0.5.17

```auto
5110032

```

I converted the imports to npm imports and added an MIT License Identifier (though realized I made a typo in Identifier)

```auto
// SPDX-License-Identifer: MIT

pragma solidity ^0.5.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20Detailed.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20Mintable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20Burnable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20Pausable.sol";

contract Cashback is ERC20, ERC20Detailed, ERC20Mintable, ERC20Burnable, ERC20Pausable {

    constructor () public ERC20Detailed("Cashback", "CBK", 18) {
        _mint(msg.sender, 1000000 * (10 ** uint256(decimals())));
    }
}

```

I imported OpenZeppelin Contracts 2.5.0

```auto
npm install @openzeppelin/contracts@2.5.0

```

I could then use Hardhat Etherscan plugin to run verify:

```auto
$ npx hardhat verify --network mainnet 0x0a6EBca8c0Ae2C540d30BEC35BFA00CEAa7f7B3F
Downloading compiler 0.5.17
Compiling 13 files with 0.5.17
Compilation finished successfully
Successfully submitted source code for contract
contracts/Cashback.sol:Cashback at 0x0a6EBca8c0Ae2C540d30BEC35BFA00CEAa7f7B3F
for verification on etherscan. Waiting for verification result...
Successfully verified contract on etherscan

```

---

_[View the full topic](https://forum.openzeppelin.com/t/cannot-verify-contract-deployed-via-remix/4809)._