How to Verify the ChatGPT Watermark Was Actually Removed

Method 1 — Our verify tool

Drop the cleaned file into the Verify Watermark Removed tool. It scans for the JUMBF magic bytes (6A 75 6D 62) and the ASCII markers (c2pa, jumbf, contentauthenticity). Green badge = clean.

Method 2 — Content Credentials Verify

Upload to contentcredentials.org/verify. Adobe's reference verifier should say "No Content Credentials found".

Method 3 — Command line (power users)

exiftool yourimage.jpg | grep -i c2pa — empty output means no C2PA bytes remain.