Verify & add C2PA Content Credentials locally: images, PDFs, videos. Sign JPEG/PNG/PDF with .p12 or test cert. Not an AI detector.
Users
32
+15 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#129K
#107K among extensions
Version
0.2.0
updated 14 Oct 2026
Users
monthly, 4 months
Latest, 20 Oct 2026:32 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 20 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About ProvSeal – Verify & Sign Content Credentials
ProvSeal Verify lets you inspect, understand, and test Content Credentials (C2PA) directly in Chrome, locally, without uploading your files.
Formerly "C2PA Signer". Only the name and visual identity have changed: features, local-first approach and privacy commitments remain the same. No action needed.
WHY USE PROVSEAL VERIFY?
Verify local files privately
Inspect supported images, documents and videos for Content Credentials. See at a glance whether credentials are present, cryptographically valid, trusted, untrusted, invalid or missing.
Scan media on web pages
Analyze visible media in your active tab and get clear verification badges. Scanning is manual by default; automatic scanning is optional.
Understand provenance and trust
Detailed reports include:
- Manifest information
- Actions and assertions
- Certificate details
- Trust-chain status
- Validation warnings and errors
- Exportable JSON data
Test signing workflows locally
Create a local test identity and certificate for learning, demos, development and internal validation, or import your own .p12 / .pfx signing material to test signing JPEG and PNG files with your identity.
PRIVACY BY DESIGN
Verification and test signing run locally in your browser. Your files, media, private keys and certificates are never uploaded to a ProvSeal server. No advertising, no tracking, no data sale, no profiling.
WHAT PROVSEAL VERIFY DOES NOT DO
ProvSeal Verify checks cryptographic provenance and integrity, not truth. It is not an AI detector.
- Unsigned content is not automatically fake.
- Signed content is not automatically truthful.
- A valid credential confirms integrity and provenance information, not the accuracy of what the content depicts.
- A valid test signature is not a publicly trusted production signature.
ABOUT TEST CERTIFICATES
Locally generated certificates are for learning, demos, development and internal validation only. They are not publicly trusted: public trust requires an appropriate certificate chain and the applicable trust policies of the Content Credentials ecosystem.
FOR TEAMS AND ORGANIZATIONS
Need production signing with your HSM, KMS or hardware tokens, or an integration into your own workflow? Contact us at provseal.fr
INDEPENDENT IMPLEMENTATION
ProvSeal Verify is an independently developed implementation of the C2PA Technical Specification. It is not produced, operated, sponsored, approved or endorsed by the C2PA project or Joint Development Foundation Projects, LLC.
C2PA is a trademark of Joint Development Foundation Projects, LLC.
Conformance status: an application to the C2PA Conformance Program as a Validator Product is in progress. Until it is successfully completed, ProvSeal Verify is not represented as a C2PA Conforming Product
Growth
Window
Users
Change
Ratings
Rating
7 days
+8
+33.3%
0
0.00
30 days
+15
+88.2%
0
0.00
Chrome Web Store search rankings
Where ProvSeal – Verify & Sign Content Credentials appears when people search the store, with the 30 day change