Proof anyone can check.
In a dispute, you shouldn't have to take anyone's word for it. Drop a Signet agreement or its certificate below and confirm it's genuine and unchanged, right here in your browser. No account, nothing uploaded, and it still works even if Signet is offline.
Already have a sealed agreement?
Drop a Signet agreement or its certificate below to check it, or try one of the samples.
Drop a sealed agreement or certificate
or
Checked entirely in your browser. Nothing is uploaded, and it works even if Signet is offline.
How it knows.
Recompute the fingerprint
Your browser takes the document's exact contents and derives its unique fingerprint. Change a single character and the fingerprint changes.
Check the seal
It confirms the certificate was genuinely issued by Signet and hasn't been altered, and that its fingerprint matches the document you dropped in.
Get a verdict
Authentic, altered, or not genuine. If a fee was changed or a certificate forged, it's flagged instantly.
The check runs on your device against proof carried inside the document itself, so it doesn't depend on trusting Signet's systems. Independent, public timestamping is on the way, so a completed agreement can be verified for good, by anyone, forever.
Signed. Sealed. Provable.
Every Signet agreement comes with proof anyone can check. Join the early-access list to send your first.
No card, no spam. We'll only email about your access.