Sunlit. Workshop
Timestamp check

Prove the certificate.

Enter a workshop serial to check the sealed certificate. You can also upload proof files if you’re verifying independently.

Certificate stamp

Check a work

Sunlit works are looked up by serial. Advanced file upload is optional, below.

For Sunlit works, the serial is enough. File upload is only needed for an independent check.

Independent check with files

A match means the certificate file still matches what was sealed. Bitcoin confirmation may take a few hours after sealing.

What this proves

A sealed certificate can’t be quietly rewritten after the fact. It does not prove the physical work is present.

Looking for another mark? Back to verify · Check a PDF signature

Timestamp check — Sunlit Workshop