Digital Lexicon Hub

An open technical standard for attaching signed, tamper-evident provenance records to images, video, audio and documents.

Provenance records help brands prove their visuals are authentic, disclose AI-generated assets, and prepare for EU AI Act transparency duties that require synthetic content to be marked in a machine-readable way.

A marketing team generates campaign images with an AI tool that writes C2PA manifests, keeps credentials intact through the export settings of its editing software, and checks each file in a Content Credentials verifier before publishing.

Many platforms strip metadata on upload, and a missing manifest proves nothing about origin. C2PA shows who signed a claim, not whether the content is true, and watermark-based soft bindings can be removed or degraded.

A C2PA manifest, branded as Content Credentials, holds assertions about the asset, such as capture device, edit actions or AI generation, a claim that bundles them, and a claim signature made with an X.509 certificate. Hard bindings use cryptographic hashes to detect any change to the asset; soft bindings such as watermarks or fingerprints help recover credentials after metadata loss. Article 50 of the EU AI Act requires machine-readable marking of AI-generated outputs, a duty C2PA can help meet.