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Explore

  • Models
  • Chat
  • Providers
  • Apps
  • Rankings
  • Tools
  • Monitor

Build

  • Documentation
  • API Reference
  • Quickstart
  • SDKs

Resources

  • Compare
  • Migration Guides
  • Methodology
  • Blog

Company

  • About
  • Mission
  • Pricing
  • Works With
  • Acknowledgements
  • Support
  • Privacy
  • Terms

Community

  • Discord
  • GitHub
  • LinkedIn
  • Reddit
  • X

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AI & API tools

Content Provenance Checker

Check an image or audio file for known provenance signals embedded by supported OpenAI generation systems.

Check a file
Drop, choose, or paste an image—or upload audio. 20 MB maximum.

Your file is sent to OpenAI for this check. Phaseo does not store it.

What this checks

Known OpenAI C2PA credentials and SynthID provenance signals.

Images can return C2PA and SynthID results; audio returns SynthID when applicable.

A negative result is not proof
Signals can be removed or degraded, and this check does not detect content from other AI providers.
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