Claude's new Scarlet Letter watermark is invisible — for now
The mark flags anything Claude processed, even human writing it only edited. https://arstechnica.com/tech-policy/2026/08/claudes-new-scarlet-letter-watermark-is-invisible-for-now/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social
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@arstechnica
Laughable. You can't watermark a text file, the format doesn't support it.
@arstechnica I applaud the effort but obviously this is unsatisfactory. BTW, will this watermark apply solely in the EU?