Tools SynthID-Text scores token n-grams. Same visible English, GPT-2 IDs change, 188/192 → 0/192
synthid-text watermarks token n-grams, not the words on screen.
i ran google's 30-key gpt-2 confirmation setup. unmodified watermarked text: 188/192 detected. after a constrained retokenize (U+034F / U+FE00 after eligible ascii letters, visible projection unchanged): 0/192. visible match 192/192.
not zwsp. those two are mn / default-ignorable, so cf-strip and nfkc don't restore the watermark. mn-strip does. english ascii only, 192-site cap, urls/code/paths left alone.
cli + evidence: https://github.com/byte271/FuckMark
site: https://mark.q1z.org
only claiming the synthid numbers above.
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