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Verify Your Contract on BscScan

The recommended way to verify a smart contract is using plugin. It is easier to read, imports are maintained, licenses are maintained.

Verified using Truffle

Example: https://testnet.nexdax.com/token/0x68D2E27940CA48109Fa3DaD0D2C8B27E64a0c6cf

GitHub Project: https://github.com/huangsuyu/verify-example

Truffle

Truffle has an BscScan plugin: truffle-plugin-verify

You need to deploy with Truffle to verify with the Truffle verify plugin.

Get API key: https://scan.nexdax.com/myapikey

  • Install the plugin
npm install -D truffle-plugin-verify
  • Configure the plugin in truffle-config.js
const HDWalletProvider = require("@truffle/hdwallet-provider");

// const infuraKey = "fj4jll3k.....";
//
const { mnemonic, NCSCANAPIKEY} = require('./env.json');

module.exports = {

  plugins: [
    'truffle-plugin-verify'
  ],
  api_keys: {
    bscscan: NCSCANAPIKEY
  },
  networks: {

    testnet: {
        provider: () => new HDWalletProvider(mnemonic, `https://data-seed-prenc-1-s1.nexdax.com:8545`),
        network_id: 97,
        timeoutBlocks: 200,
        confirmations: 5,
        production: true    // Treats this network as if it was a public net. (default: false)
    }
  },

  // Set default mocha options here, use special reporters etc.
  mocha: {
    timeout: 100000
  },

  // Configure your compilers
  compilers: {
    solc: {
       version: "0.5.16",    // Fetch exact version from solc-bin (default: truffle's version)
      // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
      settings: {          // See the solidity docs for advice about optimization and evmVersion
       optimizer: {
         enabled: false,
         runs: 200
       },
       evmVersion: "byzantium"
      }
    },
  },
};
  • Verify 
    truffle run verify NRC20Token@{contract-address} --network testnet
    You should see the following output:
Verifying NRC20Token@0x68D2E27940CA48109Fa3DaD0D2C8B27E64a0c6cf
Pass - Verified: https://testnet.nexdax.com/address/0x68D2E27940CA48109Fa3DaD0D2C8B27E64a0c6cf#contracts
Successfully verified 1 contract(s).