Original Registration Notary

Register only the file fingerprint (SHA-256) to record "this file existed at this time". The file itself never leaves your device.

Register only the file fingerprint (SHA-256) to record "this file existed at this time". The file itself never leaves your device. Free with no sign-up, and the analysis runs inside your browser — files never leave your device. On our public gate (30 real + 52 AI images) it measured 96.3% at original quality and 91.5% on recompressed copies, with zero real photos confidently mislabelled as AI. Treat it as an indicator, not proof: the newest commercial generators evade every detector.

What this tool does better

• Registers only the SHA-256 hash — the file stays with you
• Creates a record that it existed at a point in time
• States plainly this is not legal notarization

Only the hash is stored (no file, no personal data). A reference timestamp, not legal notarization — keep the original file for disputes.

Check these next

• Provenance · Content Credentials — Read C2PA/EXIF data to identify the generator.
• AI Disclosure Self-Check — Self-check your AI disclosure duties.
• Is your photo leaking data? — Check and strip location data in photos.