What is 'Etherscan' or 'Solscan'? How can I use it to verify an NFT transaction?

Etherscan Overview

1. Etherscan is a blockchain explorer specifically designed for the Ethereum network. It provides real-time access to every transaction, smart contract, wallet address, and token transfer recorded on Ethereum’s public ledger.

2. Users can search for any Ethereum-based NFT collection by its contract address or locate individual NFTs using their unique token ID and associated smart contract.

3. The interface displays verified source code for deployed contracts, enabling users to confirm whether an NFT project’s logic matches what developers claim.

4. Each NFT transaction appears as a standard ERC-721 or ERC-1155 transfer event, showing sender, recipient, block number, timestamp, and gas used.

5. Etherscan supports direct interaction with read-only contract functions—such as ownerOf(tokenId)—to check current ownership without executing any on-chain action.

Solscan Functionality

1. Solscan serves as the primary blockchain explorer for the Solana network, offering similar transparency for Solana-based NFTs minted under the Metaplex standard.

2. Unlike Ethereum, Solana uses account-based storage where NFT metadata resides off-chain but is cryptographically anchored via on-chain mint accounts and metadata accounts.

3. Searching by NFT mint address reveals the full ownership chain, including delegate permissions, freeze status, and associated token accounts.

4. Solscan displays parsed transaction details for NFT mints, transfers, listings on marketplaces like Magic Eden, and cancellations—each linked to a specific signature.

5. Users can verify authenticity by checking whether the mint authority has been revoked after creation and whether the update authority matches the official project team’s wallet.

Verifying an NFT Transaction on Etherscan

1. Navigate to etherscan.io and paste the transaction hash (txhash) into the search bar.

2. On the resulting page, scroll to the “Input Data” section and click “Decode Input Data” if available—this reveals human-readable parameters such as _from, _to, and _tokenId.

3. Confirm the “To” field points to the correct NFT contract address and cross-check it against the official project’s verified contract listing.

4. Click the “Events” tab to view emitted logs; look for Transfer events containing the exact token ID and destination wallet.

5. Use the “Contract” tab to read the contract’s source code and verify that the transfer function complies with ERC-721 standards and includes no hidden reentrancy or minting logic.

Verifying an NFT Transaction on Solscan

1. Go to solscan.io and enter the transaction signature in the search box.

2. Identify the instruction labeled “Transfer” under the “Instructions” section and expand it to see the involved accounts—including the source token account, destination token account, and mint account.

3. Check the “Accounts” tab to ensure the owner of the source token account matches the sender’s wallet and that the destination token account belongs to the intended receiver.

4. Click the mint account link to open its details and verify that the metadata URI resolves to valid JSON hosted on IPFS or Arweave, matching the NFT’s claimed attributes.

5. Examine the “Inner Instructions” to detect nested calls—for example, confirming whether a marketplace program initiated the transfer or if it originated directly from a user wallet.

Frequently Asked Questions

Q: Can I verify if an NFT was minted during a specific drop using Etherscan?A: Yes. Filter transactions by the NFT contract address and sort by block time. Look for multiple transfers originating from the same wallet within seconds—these often indicate bot activity or batch minting.

Q: Why does Solscan show “Unknown Program” for some NFT transfers?A: This occurs when the program ID involved isn’t registered in Solscan’s database. Users should manually verify the program’s legitimacy by comparing its ID with known marketplace programs like Magic Eden’s or Tensor’s.

Q: Is it possible to trace stolen NFTs using these explorers?A: Yes. By following the token account’s transaction history backward from the suspected theft, users can identify the last legitimate owner and the exact moment control shifted to an unauthorized wallet.

Q: Do Etherscan and Solscan support multi-chain NFT verification?A: No. Etherscan only indexes Ethereum and select EVM-compatible chains like Polygon and BSC through separate subdomains. Solscan exclusively covers Solana. Cross-chain NFT verification requires switching between respective explorers per chain.