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fix: scope text-structure fingerprint (id 43) robustness claim to match benchmark #60

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domguinard merged 1 commit into from
Jul 22, 2026
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fix: scope text-structure fingerprint (id 43) robustness claim to match benchmark #60

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2 changes: 1 addition & 1 deletion softbinding-algorithm-list.json
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Expand Up @@ -679,7 +679,7 @@
"text/html"
],
"entryMetadata": {
"description": "WritersLogic CPoE structural text fingerprint. Computes a deterministic, model-free 256-bit SimHash over a document's structural skeleton rather than its content words, so it survives synonym-level paraphrase that changes wording but preserves structure. From NFC-normalized text (zero-width and formatting characters removed, sentence and paragraph boundaries and punctuation preserved) it derives the sentence-length sequence, the paragraph-length sequence, the punctuation-class profile, and the closed-class (function-word) skeleton, and folds these weighted features into the hash. Because the features are model-free the value is reproducible by any verifier. Two fingerprints match when their Hamming distance is at most 24 bits (about 9 percent). Robust to synonym substitution, reformatting, re-encoding, and zero-width-character injection; not robust to heavy restructuring or translation. Part of the CPoE proof-of-effort authorship attestation system implementing draft-condrey-cpoe-protocol.",
"description": "WritersLogic CPoE structural text fingerprint. Computes a deterministic, model-free 256-bit SimHash over a document's structural skeleton rather than its content words, so it survives light synonym substitution that changes wording while preserving sentence and token lengths. From NFC-normalized text (zero-width and formatting characters removed, sentence and paragraph boundaries and punctuation preserved) it derives the sentence-length sequence, the paragraph-length sequence, the punctuation-class profile, and the closed-class (function-word) skeleton, and folds these weighted features into the hash. Because the features are model-free the value is reproducible by any verifier. Two fingerprints match when their Hamming distance is at most 24 bits (about 9 percent). Robust to light, length-preserving synonym substitution, reformatting, re-encoding, and zero-width-character injection; not robust to substantive lexical paraphrase (which alters sentence or token lengths), heavy restructuring, or translation. Part of the CPoE proof-of-effort authorship attestation system implementing draft-condrey-cpoe-protocol.",
"dateEntered": "2026-07-07T00:00:00.000Z",
"contact": "david@writerslogic.com",
"informationalUrl": "https://docs.writerslogic.com/soft-binding/text-structure"
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