Reference Glossary
C2PA
C2PA is an open technical standard from the Coalition for Content Provenance and Authenticity for cryptographically attaching tamper-evident edit history, called Content Credentials, to media files.
Why it matters in a DAM
As AI-generated and AI-edited images enter DAM libraries alongside camera-original photography, buyers, newsrooms, and platforms increasingly require proof of what an asset is and how it was made before they will license or publish it. A DAM that preserves a C2PA manifest through ingestion, transformation, and export lets that proof travel with the file; a DAM whose processing pipeline strips metadata on resize or recompression destroys the credential and leaves the asset unable to prove its own history.
A worked example
Common mistake
Teams treat C2PA data as ordinary metadata and let the DAM's standard image pipeline (resize, recompress, format conversion) run on ingest, which silently strips or invalidates the embedded manifest instead of preserving or re-signing it.
C2PA (Coalition for Content Provenance and Authenticity) was formed in February 2021 through the merger of Adobe’s Content Authenticity Initiative and Project Origin, an effort led by Microsoft and the BBC. Its steering committee today includes Adobe, Amazon, BBC, Google, Meta, Microsoft, OpenAI, Publicis Groupe, Sony, TikTok, and Truepic, and the specification is published openly at spec.c2pa.org, currently at version 2.3.
The standard’s core mechanism is the Content Credential: a manifest attached to a file that records assertions about its origin and history — who or what created it, what actions were performed on it (editing, AI generation, compositing), and what earlier assets it was derived from. The manifest is cryptographically signed, so any attempt to alter the file or its history after signing is detectable, and it can reference a chain of prior manifests back through an asset’s full edit history.
For a DAM, the practical question is whether the manifest survives the system’s own processing. Most DAMs generate derivatives — thumbnails, resized web versions, format conversions — as a matter of course, and unless that pipeline is C2PA-aware, those operations strip the embedded manifest rather than updating or re-signing it. As editorial buyers, ad platforms, and AI-disclosure requirements increasingly ask for Content Credentials before accepting an asset, whether a DAM preserves or discards them on export becomes a real functional gap, not a cosmetic one.
Frequently asked
What is C2PA and what does it attach to a media file?
C2PA is an open technical standard from the Coalition for Content Provenance and Authenticity that cryptographically attaches Content Credentials — a tamper-evident manifest recording edit history — to media files.
When was C2PA formed and who leads it?
It was formed in February 2021 through the merger of Adobe's Content Authenticity Initiative and Project Origin (led by Microsoft and the BBC); its steering committee today includes Adobe, Amazon, BBC, Google, Meta, Microsoft, OpenAI, Publicis Groupe, Sony, TikTok, and Truepic.
What does a C2PA manifest actually record?
Assertions about the file's origin and history — like c2pa.created, c2pa.edited, or c2pa.ai_generated — along with the claim generator that produced it, ingredient references to parent assets, and a cryptographic signature tied to a certificate.
Why does a DAM's own processing pipeline threaten C2PA data?
Standard image processing — resize, recompression, format conversion — silently strips or invalidates the embedded manifest unless the pipeline is specifically C2PA-aware and preserves or re-signs it.
What makes a C2PA manifest tamper-evident?
Its cryptographic signature — any attempt to alter the file or its recorded history after signing is detectable, and the manifest can reference a chain of prior manifests through the asset's full edit history.
Why is C2PA becoming more relevant to DAM operations specifically now?
As AI-generated and AI-edited images enter libraries alongside camera-original photography, editorial buyers, ad platforms, and AI-disclosure requirements increasingly ask for Content Credentials before accepting or licensing an asset.
Sources
- C2PA's steering committee includes Adobe, Amazon, BBC, Google, Meta, Microsoft, OpenAI, Publicis Groupe, Sony, TikTok, and Truepic; the current specification version is 2.3. checked 2026-08-07 — C2PA official site