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Content Credentials

C2PA Detector for AI Image Provenance

Use this C2PA detector to read Content Credentials, the signed records that can name the tool that created or edited an image. Slop or Not separates that stronger proof from fallback pixel checks without sending online uploads to outside AI services.

  • You can testPhotos, screenshots, product images, receipts, and profile pictures up to 8 MB.
  • ResultA probability verdict, AI score, and source details when the file carries them.
  • PrivacyDeleted the moment the check finishes. We never keep your photo.

AI detection is probabilistic. Results can vary with new AI models and evasion methods. A real photo edited with AI tools can be flagged as AI.

Online checks are deleted after processing.

What it checks

Read Signed Content Credentials Before Trusting a Score

Signed Content Credentials embedded in the file

Generator, editor, and action history from readable manifests

Image classifier output when the credential is absent

Good Uses

  • Checking whether a file came from ChatGPT, Firefly, or Designer
  • Reviewing provenance before publishing an image
  • Explaining why a screenshot lost its original content history

Limits to Know

  • Credentials can be stripped by screenshots or file conversions
  • A valid credential describes file history, not every off-platform edit
  • No credential does not prove the file is real

FAQ

C2PA Detector Questions

What is C2PA?

C2PA is the standard behind Content Credentials: a signed record that can describe how an image was created or edited and which tool made the claim.

Is a C2PA match stronger than an AI score?

Yes. Signed provenance is stronger evidence than a probability score when the credential is valid and relevant. The image score still helps when the credential is absent or incomplete.

Can C2PA metadata be missing from AI images?

Yes. Screenshots, uploads, and file conversions can remove C2PA metadata. That is why Slop or Not also checks the image itself.

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