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How to Verify Smart Contract
Verify ERC-1155 Smart Contract

Detailed Guide to Verify the "Icecream" NFT Smart Contract on flascan

This guide will walk you through the process of verifying the "Icecream" NFT smart contract on Blockscout, using the example contract that was previously deployed. Verifying your contract ensures transparency and allows others to view the source code and interact with the contract.

Prerequisites

  1. Remix IDE: Your contract should be deployed via Remix IDE.
  2. Source Code: Your smart contract source code and its dependencies. (e.g., Icecream NFT Collection 0xD380F6A048d3ab45B1EDb90fDF10BF65187e4539)
  3. Flascan: https://testnet.flascan.net (opens in a new tab).

If you have not already deployed the contract, please refer to the instructions provided Deploying an ERC-1155 NFT Collection.

Step 1: Obtain Contract Details

Icecream NFT Example:

Contract: 0xD380F6A048d3ab45B1EDb90fDF10BF65187e4539

Step 2: Flatten the Contracts

Go to Remix (opens in a new tab).

  1. Right-click on the Icecream_erc1155.sol file in the Remix file explorer.
  2. Select "Flatten" from the context menu. erc1155.sol
  3. Remix will generate a flattened version of the contract Icecream_erc1155_flattened.sol and open it in a new file. erc1155.sol

Step 3: Start Verification on flascan

  1. Go to contract Icecream (opens in a new tab).

  2. On the contract page, click on the “Verify & Publish” button. erc1155.sol

  3. Enter Verification Details:

  • Contract license

    Select "MIT License"

  • Verification method

    Solidity (Flattened source code)

  • Compiler

    v0.8.26+commit.8a97fa7a

  • EVM Version

    paris

  • Optimization enabled

    200

  • Contract code

    Copy and paste Icecream_erc1155_flattened.sol.

  • Verify & Publish

    Submit your contract for verification.

The page should be like:

erc1155.sol

Step 4: Verification Status

  • Wait for Verification:

    Wait for Blockscout to process the verification.

    If successful, your contract source code and ABI will be publicly available on flascan.

erc1155.sol

  • Troubleshooting:

    If verification fails, check for common issues such as mismatched compiler versions, incorrect optimization settings, or incorrectly entered constructor arguments.

Well done! Congrats on successfully verifying your contract! 🎉

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