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C2PA Content Credentials Checker
Drop an image to verify its C2PA manifest. See the producer, signing certificate, edit history, and ingredient images — validated against trusted issuers, all in your browser.
Verification uses the official C2PA library and runs entirely in your browser.
What the C2PA checker shows you
- Producer. The claim generator that wrote the manifest (e.g. Adobe Photoshop 25.x, OpenAI DALL·E, a specific camera body).
- Signature status. Whether the cryptographic signature validates and whether the issuing certificate is on a trust list.
- Assertions. Edit actions, capture conditions, training-data exclusions, source images (“ingredients”), and any custom assertions the producer added.
- Chain of custody. Every signed step from capture through edits, in order.
When C2PA verification fails
If you see “no manifest found”, the file either never had one or it was stripped. Common culprits:
- Re-saving through tools that don't preserve C2PA (most viewers, many editors)
- Social platforms re-encoding images on upload
- Screenshots — the screenshot is a new file with no inherited credentials
- Format conversion (JPEG → WebP, PNG → JPEG, etc.)
A failed signature is more interesting than a missing one: it usually means the file was edited after signing without a downstream tool re-signing. The checker will tell you exactly what doesn't match.
Related tools
- AI image detector — combine C2PA with AI-generation signals
- EXIF viewer — see traditional camera metadata alongside C2PA
- All MediaSens tools — full analyzer with reverse image search
Frequently asked questions
- What is C2PA?
- C2PA (Coalition for Content Provenance and Authenticity) is an open standard for cryptographically signed media provenance. A C2PA manifest records who produced or edited a file, which tools they used, and a signature that can be verified against the producer's certificate.
- How do I check C2PA Content Credentials?
- Drop the image into MediaSens. The checker reads the C2PA manifest embedded in the file, validates the signature against trusted issuers, and shows you each assertion — producer, edit actions, source images, and signing certificate.
- Why does C2PA fail to verify?
- Common reasons: the file was re-saved or recompressed (which strips the manifest), the issuer isn't in any trust list, the signature was tampered with, or the file never carried credentials to begin with. Most social platforms strip C2PA on upload.
- Which apps and cameras add C2PA?
- Adobe Photoshop and Firefly, Leica M11-P, Sony Alpha cameras, OpenAI's DALL·E and ChatGPT image generation, and an increasing number of camera/news workflows. The list grows monthly.
- Is the C2PA checker free?
- Yes. Verification runs entirely in your browser using the official C2PA library. No account, no upload, no fee.
- Do you support C2PA in PNG, JPEG, and video?
- JPEG and PNG are fully supported. C2PA support for video and audio is in the spec and partially supported — drop a file and we'll tell you what we can read.