Rhyme locks the doorway

Claim (verbatim)

Rhyme locks the doorway. Joins the cataloguer's oldest headache — incipit drift — to prosody as an error-correcting code operating exactly where texts are most vulnerable: openings, which suffer lost first leaves, added prologues, and scribal throat-clearing. A verse work's first lines are locked by rhyme and meter, since changing a word audibly breaks the couplet, while a prose opening carries no checksum. Within a single vernacular's census, verse works should hold their incipits across witnesses measurably better than prose works of equal popularity.

Prediction clause (verbatim)

For Middle High German works with at least 10 recorded witnesses, compute distinct substantive incipit variants per witness from catalogue incipit fields. Primary clause: the prose works' median drift ratio is at least 1.5 times the rhymed-verse works' median. Secondary: prose reworkings of verse originals drift more than their own verse sources. The verdict follows the primary clause.

Kill-dataset (verbatim)

Kill: the Handschriftencensus (handschriftencensus.de) incipit and witness records for Middle High German transmission.

Novelty / leakage triage

provisional — model-triaged, shepherd review pending

A provisional first pass authored by the model (Opus), not yet confirmed by the shepherd. It carries the same dated-search requirements as an authoritative verdict but is excluded from every headline figure and cannot underwrite a prediction until a shepherd confirms it. Provisional reading: Adjacent (closely related prior work exists).

[Independent blind re-audit 2026-07-08 (2nd pass, generator-independent, blind to pass 1). DOWNGRADED from the provisional 'novel_unlocated': this adversarial pass located adjacent prior work.] The core mechanism — that metre and rhyme function as an error-correcting/mnemonic constraint that resists transmission drift — is genuinely prior work (David Rubin, 'Memory in Oral Traditions', 1995, explicitly frames poetic constraints as error-correction; the mouvance literature discusses relative stability of verse). Search also surfaced the observation that textual CONTEXT (e.g. glosses/translation frames) can matter more than the verse/prose split. What is NOT located is this specific operationalization: measuring INCIPIT drift (distinct substantive incipit variants per witness) from a catalogue (Handschriftencensus), restricted to Middle High German works with >=10 witnesses, and testing prose median drift >=1.5x rhymed-verse median with a prose-reworking-of-verse secondary. The mechanism is prior; the incipit-specific, census-driven quantitative claim is not.

• David C. Rubin, 'Memory in Oral Traditions: The Cognitive Psychology of Epic, Ballads, and Counting-out Rhymes' (1995) — poetic constraints as error-correction
• Visualizing Mouvance (variance in medieval verse transmission; note that framed/glossed poems show unusually low variation)
• Handschriftencensus (incipit & witness records for MHG transmission)

Predictions

No prediction registered yet.