How YouTube shows the label
YouTube applies two different things: a required disclosure the creator checks when uploading a video with realistic altered or synthetic content (visible as a notice in the description or over the player), and the reading of C2PA Content Credentials on images. Thumbnails with embedded credentials can carry that provenance information.
How to remove it, step by step
- Check the thumbnail or image in the checker to see its credentials and metadata.
- Remove provenance credentials with the /c2pa mode.
- Clean EXIF and XMP from thumbnails and channel art with /exif and /xmp if you need to.
- Download, check again and upload the image to your video or channel.
Nuance and false positives
A video’s altered content label depends on your disclosure and on YouTube’s analysis, not on an image’s metadata: cleaning the thumbnail does not exempt you from disclosing synthetic material when that is required. Where this tool does help is thumbnails or images exported with provenance that would mark a design you made as AI. Pixel-level watermarks are not touched.
Final tip
Keep the two things separate: follow YouTube’s disclosure when your video requires it, and use cleaning only for images (thumbnails, art) whose metadata does not reflect how you created them.