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Check a record

Look up a record by its record ID, and compare a fingerprint if you have one. No account needed.

Check a record

It's the 8 characters at the end of a trustchain.biz/verify link, and it's on the certificate too.

The anchor fingerprint from a certificate (under Anchoring) or the Polygon transaction, not the Terms fingerprint.

Only the ID is sent. The fingerprint is compared in your browser.

A test deal we made ourselves, not a customer's.

Signed in as a party? You can also enter the 20-character Agreement ID from your agreement's Proof tab.

How it works

What this page does

Find the record

Enter the record ID from the record's link or certificate. A record shows here only after both parties signed.

Compare a fingerprint

Paste the anchor fingerprint to see if it is the one anchored for this record.

Check Polygon yourself

Open the anchor transaction on any Polygon block explorer to see the fingerprint and its date, without relying on TrustChain.

Why you can't paste the agreement text

TrustChain's fingerprint is a Keccak-256 hash of the record's ID, title, terms, amount and both parties' account IDs. Hashing the text alone gives a different value, so this page looks a record up by its ID instead.

No agreement text on-chain
Optional Polygon anchor
You choose who sees it