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fix: use Blockscout verifier flags for Ink Sepolia contract verification #612

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fix: use Blockscout verifier flags for Ink Sepolia contract verification #612

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16 changes: 11 additions & 5 deletions src/pages/build/tutorials/deploying-a-smart-contract/foundry.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -119,7 +119,7 @@ forge test

```env
PRIVATE_KEY=your_private_key_here
RPC_URL=https://rpc-gel-sepolia.inkonchain.com/
INKSEPOLIA_RPC_URL=https://rpc-gel-sepolia.inkonchain.com/
BLOCKSCOUT_API_KEY=your_blockscout_api_key_here
```

Expand Down Expand Up @@ -150,20 +150,26 @@ contract DeployScript is Script {
# Load environment variables
source .env

# Deploy to InkSepolia Testnet
forge script script/Deploy.s.sol:DeployScript --rpc-url $RPC_URL --broadcast --verify
# Deploy to Ink Sepolia Testnet
forge script script/Deploy.s.sol:DeployScript --rpc-url $INKSEPOLIA_RPC_URL --broadcast --verify
```

## Verifying Your Contract

If you want to verify your contract on Etherscan:
Ink uses [Blockscout](https://explorer-sepolia.inkonchain.com) as its block explorer — not Etherscan.
To verify your contract after deployment, use the `--verifier blockscout` flag:

```bash
forge verify-contract <DEPLOYED_CONTRACT_ADDRESS> src/InkContract.sol:InkContract \
--chain-id 763373 \
--etherscan-api-key $BLOCKSCOUT_API_KEY
--verifier blockscout \
--verifier-url https://explorer-sepolia.inkonchain.com/api \
--verifier-api-key $BLOCKSCOUT_API_KEY
```

> **Note:** `BLOCKSCOUT_API_KEY` can be obtained from the [Ink Blockscout explorer](https://explorer-sepolia.inkonchain.com).
> Using `--etherscan-api-key` here will fail with an "unsupported chain" error.

## Additional Configuration

You can customize your Foundry setup in `foundry.toml`:
Expand Down