Contract Verification with Blockscout

The following guide walks you through the process of contract verification using the Blockscout explorer.

Prerequisites

A deployed smart contract on Filecoin
Your contract's source code (.sol file)
Remix IDE for flattening contracts
Contract deployment details (address, compiler version, license, optimization settings)

Step-by-Step Verification Process

Step 1: Prepare Your Contract Source Code

Open Remix IDE:

Flatten your contract:
- In the File Explorer sidebar, under contracts, right-click on your contract
- Select Flatten from the menu
- This creates a <contract-name>_flattened.sol file with all dependencies included
Verify contract details:
- Ensure the license and Solidity version match your original contract
- Click Save to save the flattened contract
Download the flattened contract:
- Right-click on <contract-name>_flattened.sol
- Select Download to save the file locally
Gather required information:
- Contract deployment address
- Contract license type (optional)
- Solidity compiler version used for deployment
- Optimization settings (enabled/disabled and runs count)

Step 2: Submit for Verification

Access Blockscout verification page:
- Navigate to the Blockscout Contract Verification page
Fill in contract information:
- Enter your contract's deployment address
- Select the appropriate license type (optional)
- Choose verification method: Solidity (Single file)
- Enter the compiler version used for deployment
- Paste the source code from your <contract-name>_flattened.sol file
- Configure the Optimization enabled checkbox to match your deployment settings

Submit for verification:
- Click Verify & Publish to submit your contract

Step 3: Verification Complete

Upon successful verification, Blockscout will display a success message and redirect you to your verified contract dashboard where you can view the source code and interact with your contract.

Was this page helpful?

Blockscout