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Verify anything
Attest issued.
Receipts, signed agreements, zero-knowledge proofs, and Proof Cards, plus W3C credentials from other issuers. Paste an ID, a card link, or a credential, or drop the original file: it's fingerprinted in your browser and never uploaded.
Files are hashed on your device. Only the fingerprint is checked.
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What you can check here
Receipts
Prove a file or record existed, unchanged, at a point in time.
Signed agreements
Who signed and when, when the owner publishes a certificate.
Zero-knowledge proofs
A proven fact about a private agreement, and nothing more.
Proof Cards
Credentials an organization issued: signed, not revoked, and still valid.
Certificates
What an organization certified, signed by its people and itself: drop the PDF to find it.
Integration records
Events and daily state proofs a platform recorded, each its own transaction.