Verify an attestation

Every attestation issued is recorded here with the SHA-256 fingerprint of the audited trade file. Enter the reference (AUD-YYYY-NNN); if you hold the original file, its fingerprint must match exactly. No personal data is published.

Compute a file's fingerprint: certutil -hashfile file.html SHA256 (Windows) · shasum -a 256 file.html (macOS/Linux).