Definition
C2PA Signer reviews provenance and integrity signals in supported files and page media. It does not infer truth when those signals are missing.
Glossary
Provenance signals
Provenance signals are pieces of evidence about where media came from, how it was processed and whether signed data still validates.
How C2PA Signer uses it
The extension turns technical evidence into clear report fields and the four statuses: Trusted, Signed but untrusted, Invalid and No credentials.
Responsible interpretation
Use this term to describe available evidence. Do not use it as a claim that unsigned or uncredentialed media is false.