Google says the invisible marks are the real safeguard. The tool that strips them gained 8,700 stars in three days.
On 12 August we reported that watermarks-remover, an MIT-licensed project for stripping AI provenance marks, had appeared with roughly 130 stars on its first day. It now has 8,883 stars and 908 forks. In between, on 14 August, Google made its visible AI badge optional outside the EU and South Korea and pointed to SynthID and C2PA — the invisible layers — as what remains. Those are the layers this project targets. It removes invisible Unicode characters from text and strips C2PA, EXIF and XMP metadata from PNG, JPEG, WebP, SVG, PDF, DOCX, ODT, HTML and Markdown, naming Claude, Gemini/SynthID-Text and OpenAI schemes explicitly. Its README is unusually candid about the limits: pixel-domain removal is an external, unbundled backend described as "a regenerating remover, not a guarantee"; C2PA soft binding, which can re-link a stripped file to a remote manifest, is out of scope; and it states that "no tool can honestly certify that vendor detectors will fail."
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