FraudWorks
All signals

Provenance layer

Content Credentials signature is invalid

c2pa_invalid_signature

The file has a C2PA manifest, but its signature or content hashes do not validate, so the file changed after it was signed.

Severity
high
Weight
60
Layer
Provenance
Max effect
up to 60 of 100

How it affects the score

The signal contributes its weight times the detector's confidence. Signals combine so several medium findings add up, while one weak finding cannot decide a verdict.

Innocent explanations

Some editors and messaging apps rewrite files without updating Content Credentials.

What to do

Ask how the file was saved and request the original.

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