Green Checkmark C2PA Verifier

Unknown author · Tools

Open in Chrome Web Store

Users

Avg rating

—

Ratings

—

Updated

Feb 1, 2026

Media

1 item

Description

Accesses photos and videos only to verify Green Checkmark digital signatures. This tool verifies the C2PA signature embedded in photos and videos created by the GreenCheckmark app. It shows users an "Invalid Signature" warning if the photo may have been modified since it was recording. A "Valid Signature" will be shown if the certificate chain is valid. https://green-checkmark.org

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
29
Description length
Characters in the listing description.
385
Media assets
Screenshots and videos on the listing.
1
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
No
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
23.9

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.