A second registration
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Declawd v2 reviews every candidate in context and measures the registered 200-pair minimum, while preserving v1 evidence.
Articles
Research notes from Declawd. Each one names its evidence and limits, with links to public sources. No score here should be used to judge a person.
C2PA Content Credentials through four asset states
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A changed picture can keep a perfectly valid signature. The hard binding is the part that fails, and a single green tick would hide it.
What Anthropic has published about Claude's watermark
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Anthropic names marked models, offers text detection in private preview and publishes a file checker. Declawd has not accessed its text detector.
What public cleaners change
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A public cleaner changes what it can see: visible Unicode, metadata, wording. Is Claude's text mark gone afterwards? No cleaner can tell you that without Anthropic's matching detector.
Six word changes against our published watermark
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It took five substitutions to carry the fixed passage across Declawd's published cut-off. The sixth was insurance, worth more than two scoring steps of headroom.
A byte-level scan of collected Claude output
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120 files, four Claude model assignments, and along the way a test of which controls survived collection. One caveat up front: a scan like this cannot see a word-choice watermark.
Em dashes and curly marks in two corpora
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More em dashes and curly marks in five novels than in 120 collected Claude files. And nearly every em dash Claude did produce sits in dialogue.
One article, three sets of style instructions
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Tighter instructions and a checking pass shifted five familiar style patterns. Reproducing the result is harder, because the rubric is unpublished.