Signer
The sample signature validates to its included certificate chain.
For you / Content checks
See the storybehind the file.
When a file carries signed creation and editing records, keep that history with the content.
See how it worksContent Provenance
In plain English.
Content credentials are signed records about a file’s source and changes. They help explain its history; they do not prove every claim in the picture or video.
A situation
worth a second look.
A newsroom receives a photo with a recorded editing history.
Defeated / content checkGuided example
shared-photo.jpg
See what a useful answer looks like.
Can you trust this photo?
A signal, the reason behind it, and a practical next step. This guided example uses fixed sample findings, not a live detection model.
A clearer next step.
Check the signed record, its signer, and the file it describes. Missing credentials do not make a photo fake.
Inspect your own contentFor technical teams: explore the method
Illustrative product views and fixed sample findings. Advanced analysis requires approved services and suitable reference data.
1CAPTURESIGNED
2CROPSIGNED
3PUBLISHVALID
A signed edit history is inspectable; the credential describes provenance, not truth.
No signed credential found is a neutral result. Credential presence supports provenance claims, not the truth of content.
How the review works
1Read
Locate manifests, assertions, ingredients, and signer material.
2Validate
Check signatures and certificate status.
3Reconcile
Compare signed claims with pixels, metadata, and collection context.
4Explain
Treat missing credentials neutrally and expose coverage gaps.