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Graven provides a document trust infrastructure service that seals a cryptographic fingerprint of each issued file into a public, immutable registry. Issuers can upload a file or hash it locally via an API, after which its SHA-256 fingerprint is signed and recorded on the registry without requiring the file itself to leave the issuer's systems. The service also offers optional signing features, including embedding an invisible watermark and a C2PA Content Credential so that copies and screenshots remain traceable to the original record. Verification is offered as a free, public process that requires no account and can be performed by dropping a file on a verify page, scanning a QR code, or checking a live badge, returning a status of authentic, revoked, or no record.
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