Check for Selective Crops and Edits — Check for Selective Crops and Edits

The C2PA Technical Specification outlines how digital assets can be checked for modifications using standard assertions. Specifically, assertions can record actions performed on an asset, such as cropping, editing, or resizing.

By validating these assertions against the active manifest, publishers can detect whether an image has been cropped or edited. This technical audit helps expose visual manipulations before an image is used to support a claim.