Method · simulation-based inference

Naibbe cipher simulation from the published tables

Latin and Italian enciphered with Greshko's own Naibbe tables, card weights and respacing, poured into the manuscript's pages and lines, and scored on the T15 battery and the S-007 layout statistics against the whole book, Currier A and Currier B. Nothing is fitted.

Simulation-based inferenceVersion 1.0Licence MIT5 runsUsed on 1 mystery

Questions it answers

Is it a cipher of a known language?

Code Python

Download module (.py)naibbe.pyView source

Runs and results 5 runs

Run	Mystery	Measured	Result	Against
RUN0DC7Q39YNTEY	Voynich	Statistics (of 21: T15 FIT and HELD, layout MI first/last, glyph H1, word-length sd, top-10 share) with \|z\| > 2	whole book: 20/20/20 of 21 (genre Latin / Pliny 16 / Dante); Currier B: 20/20/19; Currier A: 19/19/19	Plain Latin of the genres in the same lines: 20 (book), 17 (B), 21 (A)
RUN0DC7QG68DEYK	Voynich	H2 glyph units / H1 glyph units / mean word length / share of 10 commonest words: manuscript vs Naibbe mean	h2 2.105 vs 2.167; H1 3.845 vs 3.851; mean length 4.66 vs 4.80; top-10 0.147 vs 0.152	Plain Latin in the same lines: h2 3.349 · H1 3.973 · mean length 5.61 · top-10 0.128
RUN0DC7QJ7DA8Q6	Voynich	Share of word types seen once (hapax) / bits per word saved by word order / repeated 3-word phrases / word-length sd	Currier B: hapax 0.693 vs 0.452; order gain 0.314 vs 0.125; repeated 3-grams 103 vs 27; length sd 1.69 vs 1.51. Whole book: hapax 0.705 vs 0.393; order gain 0.404 vs 0.143; 3-grams 145 vs 56; sd 1.77 vs 1.51	Plain Latin in the same lines (Currier B): hapax 0.633, order gain 1.73, 3-grams 1,097, sd 2.57
RUN0DC7QJM3KFG8	Voynich	Adjacent-page vocabulary z / Spearman(form, context) / near-twin rate within 10 words / MI last glyph to next first glyph (bits)	Currier B: locality 8.93 vs 1.11; coupling 0.144 vs 0.014; near-twins 0.263 vs 0.142; edge MI 0.265 vs 0.010. Whole book: 16.2 vs 1.7; 0.149 vs 0.019; 0.262 vs 0.140; 0.212 vs 0.008	Plain Latin of the genres in the same lines (Currier B): locality 7.89, coupling 0.036, near-twins 0.056, edge MI 0.049
RUN0DC7QKDBE3GT	Voynich	MI(line position; first glyph) / MI(line position; last glyph) / JS divergence of line-initial first glyphs, bits	Currier B: 0.133 / 0.062 / 0.264 vs Naibbe 0.001 / 0.001 / 0.001. Whole book: 0.112 / 0.056 / 0.198 vs 0.001 / 0.001 / 0.001	Plain Latin in the same lines: 0.002 / 0.001 / 0.002

Applied to

Voynich Manuscript

3 datasetsLatin genre texts, Naibbe cipher tables and example plaintexts (greshko/naibbe-cipher, commit 719f2f4c), ZL3b transcription