The checker reads the C2PAC2PA: The Coalition for Content Provenance and Authenticity: the group that publishes the open standard for content labels. label, also called Content CredentialsContent Credentials: The public name for a C2PA label, often shown as a small CR icon that opens who signed the content and what they declared.. It also looks for a supported watermarkWatermark: A mark placed in the content itself, visible or hidden, so it can be found again after the file is copied..

You see who signed, when, and whether the work changed. If a site stripped the metadataMetadata: Data stored beside the content in a file, such as author, camera or date. Many tools strip it when they copy or upload a file. and a supported soft bindingSoft binding: A watermark or fingerprint that can find a content label again after the file was copied or its metadata stripped. finds the record, the result marks it recovered. Otherwise it reports that no label was found.

The check is free. You need no account and no API keyAPI key: A secret string that identifies your account when your software calls an API. Keep it out of public code.. A valid label does not mean the content is true.