IMatch CAI Verifier

This app enables you to verify Content Credentials embedded in images and other files.

The Content Authenticity Initiative (CAI) and Coalition for Content Provenance and Authenticity (C2PA)

The C2PA industry standard, a collaborative project of the CAI and C2PA, aims to restore trust in digital media by embedding certificates that provide transparency on the creation, editing, and authenticity of images, videos, and other files.

The standard enables creators to embed certificates in their content, clearly identifying the person and device responsible for its creation. These certificates can also indicate if and how the file was edited later, as well as whether it has been tampered with. This provides a level of accountability and trustworthiness that is essential for digital media.

Many leading camera manufacturers have integrated the ability to directly embed Content Authenticity Initiative (CAI) certificates into image files, marking the beginning of a trust chain. This feature enables photographers to associate their identity and device with each captured image, creating an auditable trail that can be verified by others. By embedding this metadata directly into the image file, camera manufacturers are providing a transparent and tamper-evident way to confirm the authenticity of digital content.

The certificate can then be checked and verified by the IMatch CAI Verifier App and, in more depth, on the official CAI Verifier web site.

Checking Certificates with the CAI Verifier App

Open the CAI Verifier app from the Tools menu, App Manager or by searching for CAI in the Command Palette.

The IMatch CAI Verifier App allows users to verify the authenticity of files by checking if they contain embedded C2PA certificates. The app will notify users if:

As of September 2024, both CAI and C2PA standards and technologies are still under development. The IMatch CAI Verifier is built on the latest open-source versions of C2PA, made available by the C2PA project on GitHub. Please note that updates to the standard and toolchain can be expected, which may lead to changes in the app's functionality.

Privacy Notice

The IMatch CAI Verifier app downloads the current list of trusted certificates at each start, ensuring that you have the latest set of trustees to verify certificates against. When downloading these files, your IP address is sent to the server, which may be considered a privacy issue in some countries.

The CAI Verifier app asks you for permission on the first start.