Verify a seal
Verify an attestation
Enter an attestation UID or upload a QR code to inspect the certificate — no account required.
Enter UID
Upload QR code
About attestation verification
What is an attestation?
An attestation is a blockchain-verified record that proves human participation in AI training or data processing tasks. Each attestation includes cryptographic commitments and is permanently anchored on-chain.
How to find a UID
You can find the attestation UID in your participation certificate, email confirmation, or by scanning the QR code provided after completing a task.