ProvSeal

Verify a C2PA image.

Check whether a JPG or PNG contains C2PA evidence, whether the image still matches its signed manifest and how its certificate chain is evaluated.

  • Use the original file when possible. Screenshots, downloads and social platforms may remove or change embedded credentials.

Four steps from image to report

The normal workflow takes less than a minute, while the full report supports deeper review.

  1. Open ProvSealOpen the extension and choose the local file workflow.
  2. Select the imageChoose a supported JPG or PNG file.
  3. Read the resultNote the status and any validation warning.
  4. Inspect evidenceOpen the manifest, signature and certificate details.

Four statuses, four different next steps

The most useful response depends on the exact validation outcome.

  • Trusted

    Review the declared history

    Confirm the recognized signer and inspect actions relevant to your use case.

  • Signed, not recognised

    Evaluate signer context

    The signature can be valid even when the chain is not recognized publicly.

  • Invalid

    Preserve the file and warning

    Review failed checks before drawing a conclusion about alteration.

  • No information

    Treat provenance as unknown

    Look for another source or supporting evidence; do not label the image fake.

When the expected credential is missing

Distribution workflows often change or strip embedded provenance data.

Source

Check the file path

  • Download the original asset again
  • Avoid screenshots and clipboard copies
  • Compare the source and published versions
Delivery

Check delivery behavior

  • Review CMS or DAM transformations
  • Look for recompression or format conversion
  • Test whether the platform preserves credentials

A credential can document provenance, not reality itself

Verification can show signed origin and declared edits. It cannot independently prove that a depicted scene occurred, that all declarations are accurate or that unsigned content is deceptive.

Start from the original, open the report.

Select a JPG or PNG directly in the Chrome extension and read the full report.