Voynich Manuscript/Answer/ANS0D8FZXXA51CM

The substitution changes with position in the line (a line-keyed or position-keyed…

Ruled out failed its test

The substitution changes with position in the line (a line-keyed or position-keyed alphabet), so that the same plaintext at the same offset in different lines appears as glyph-disjoint isomorphs.

Files

	data/analysis/framework/out/periodicity.csv	2 KB	Open
	data/analysis/framework/out/isomorphs.csv	179 B	Open

Links

answers	Is it a cipher of a known language?	QST08JG2PB04SQP
against (from)	Word-as-letter, periodic transposition, position-keyed alphabets, single nulls and sorted…	EVD0D8GDPB24104
tests (from)	Periodicity, transposition and isomorph battery: coincidence between consecutive lines at same position	RUN0D8EPPTC0YGK
tests (from)	Periodicity, transposition and isomorph battery: coincidence between consecutive lines at same position	RUN0D8EPTZ62D6Q
tests (from)	Periodicity, transposition and isomorph battery: glyph-disjoint isomorph pairs at same line position / anywhere	RUN0D8EPQ261NZC
tests (from)	Periodicity, transposition and isomorph battery: glyph-disjoint isomorph pairs at same line position / anywhere	RUN0D8EPV706VSW

Kind: hypothesis
Stage: tested
Tests: ["T11-line-kappa", "T11-isomorphs"]
Family: CIPHER
Origin: deductive
Result: Consecutive-line coincidence 10.5 % vs 9.4 % for random pairs; the words-in-lines shuffle keeps 9.8 vs 9.1 %, so the small excess is neighbouring lines sharing words, not positions. Glyph-disjoint isomorphs at matched positions: 2.5 % of all such pairs in the text, 2.4 % in the within-line shuffle.
Predictions: ["consecutive lines coincide at matched positions more than random line pairs", "beyond what shuffling words within lines preserves; glyph-disjoint isomorph pairs occur at matched line positions more often than in the within-line word shuffle"]
Ledger status: not-supported

In the research Session 6: Phase 2: registered tests, brute force, five surveys; book v1.1Proposed

History

v1 · 25 Oct 2026 · Voynich Manuscript: sync from the research ledger

2f4741653ae4eed04f28b6a0d080b142cb65a63de221f1197d79635be3561aae