C2PA
Definition
Coalition for Content Provenance and Authenticity. An open technical standard for attaching cryptographically signed provenance manifests to media files, recording the creation and editing chain from capture device through publishing. Developed by Adobe, Microsoft, BBC, and others.
Related terms
- Content Credentials
- Adobe's brand name for C2PA-compliant provenance manifests. A Content Credentials badge on an image indicates that a signed, auditable creation history is...
- GAN fingerprint
- A model-specific periodic pattern embedded in GAN-generated images, detectable by averaging outputs and subtracting a reference. Analogous to photo-response non-uniformity (PRNU) in...
- Invisible watermark
- A signal embedded in an image or audio file that is imperceptible to a human viewer but detectable by an algorithm. In...
- Out-of-distribution (OOD) failure
- The drop in a classifier's accuracy when test samples come from a different statistical distribution than the training data. AI-generated image detectors...
- PRNU
- Photo-Response Non-Uniformity. The per-pixel variation in light sensitivity across a camera sensor, which produces a consistent, device-specific noise pattern in every photograph...
Explained in
- AI-Generated Image Detection and ProvenanceCoalition for Content Provenance and Authenticity. An open technical standard for attaching cryptographically signed provenance manifests to media files, recor...