What Is C2PA? What Jingwei's Verify Page Can Read
C2PA (Content Credentials) records who made an image, what tools edited it, and whether AI was involved, but only if the capture or editing tool itself supports writing that data. Jingwei's verify page reads existing, supported C2PA data when present. The JW signal Jingwei writes is a separate attribution mark that any creator can use right now, without waiting for camera makers or platforms to adopt anything.
People searching for how to check whether an image was AI-generated often run into the term C2PA. This post covers three things. What C2PA actually records, what Jingwei's verify page can read, and how the JW signal relates to C2PA.
Article 50 of the EU AI Act took effect in August 2026, requiring machine-readable marks on AI-generated or AI-edited content. C2PA is one of the most widely adopted technical approaches for this, which is why search interest in it has picked up.
What C2PA Can Record
A full C2PA manifest can include the device that captured or generated an image, its edit history, whether AI was involved, and publisher information. This data only exists if the tool that created or edited the image supports writing C2PA. Support is still limited, covering some camera models, some versions of editing software, and some AI generation tools. Most images, especially older photos or ordinary phone photos that never passed through those specific tools, simply have no C2PA data at all. That is a normal empty result. There was never anything there to read.
Why the JW Signal Exists Too
C2PA needs camera makers, editing software, and platforms to adopt it before any data shows up. Standards like this tend to move slowly, from a small group pushing for something to it becoming common practice, the way copyright law and the Creative Commons marks did. The JW signal exists so creators do not have to wait for that process to finish. Anyone can open Jingwei today and leave a mark on their own work, recording who made it and how they want it treated. That mark is imperfect and no industry body stands behind it, but it works right now.
What the Verify Page Actually Does
Upload an image to Jingwei's verify page and it does two independent things. If the file already carries supported C2PA data, it reads and displays it. If the file was processed by Jingwei and carries a JW signal, it reads and displays that too. Neither depends on the other. Jingwei's protect flow does not generate, issue, or write C2PA manifests. A processed image does not automatically gain C2PA certification.
C2PA and the JW Signal, Side by Side
These two get compared often. Here is a plain comparison.
What must exist first. C2PA needs the capture or editing tool itself to support writing. The JW signal is added by the creator before publishing.
Can you use it now. C2PA depends on whether your camera, software, or platform already supports it. Anyone can open Jingwei and use the JW signal now.
Jingwei's role. For C2PA, read only. Jingwei does not issue or forge it. The JW signal is written by Jingwei's protect flow.
Can Verify read it. Yes for C2PA if the image already carries it. Yes for the JW signal if the image was processed by Jingwei.
Is it normal for an image to lack this. For C2PA, very normal. Most images currently have none. For the JW signal, only images processed by Jingwei will have it.
That is also why we built the JW signal. Waiting for an entire industry standard to mature left a gap for creators working today. JW fills that gap so they can leave their own mark now.