AIWatermarkCheckerOpen tool

Raw receipts

C2PA reader

The same engine as the vendor pages, but framed for what it fundamentally is: a inspector for Content Credentials — who signed a file, what actions were recorded, and whether provenance is missing from a file that should have it.

Runs entirely in your browser — your file is never uploaded.

Drop an image here, or browse files

JPEG · PNG · WebP — up to 25 MB. Files are read locally and never uploaded.

Quick answer

C2PA (Content Credentials) is the open ISO standard journalists use to trace a file's history. This reader decodes its manifest store: the claim (generator, format, title), the action list (created, edited, saved — with timestamps and software agents), and the cryptographic signature box. Remember the two honest curves: an intact manifest is strong evidence; a missing manifest is weak evidence — metadata is easy to lose and also easy to strip.

Interpreting the two failure modes

Observation on a file from a marking vendorLikely meaning
Manifest present, actions show createdStraight from the generator (or carefully preserved)
Manifest present, actions show edited/convertedOne or more editing tools processed it after generation — read the trail
No manifest at allNever had one or stripped downstream (screenshots, messengers, careless re-saves)
Manifest present but claim text is oddInspect the generator strings below the tool — we surface them raw on purpose

Sources