# Periodicity, transposition and isomorph battery

> Run 6 times on the site, with every result.

Source: https://mysteriesdept.com/methods/MTH08JFX9QJ1JD6/periodicity-transposition-and-isomorph-battery  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Methods](https://mysteriesdept.com/methods)[Cryptanalysis (Zodiac-340 diagnostics)](https://mysteriesdept.com/methods?kind=cryptanalysis)Periodicity, transposition and isomorph battery

Method · cryptanalysis (Zodiac-340 diagnostics)

# Periodicity, transposition and isomorph battery

**Cryptanalysis (zodiac-340 diagnostics)** Version **1.0** Licence **MIT6** runsUsed on **1** mystery

## Questions it answers

- [Is it a cipher of a known language?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG2PB04SQP/is-it-a-cipher-of-a-known-language)

## Code Python

[Download module (.py)](https://mysteriesdept.com/files/584f859102c6630777a7c0e3055fc8e1c876dbef7911a4a0f1a7b923a1ead165.py)`t_periodicity.py`[View source](https://mysteriesdept.com/files/584f859102c6630777a7c0e3055fc8e1c876dbef7911a4a0f1a7b923a1ead165.py)

## Runs and results 6 runs

| Run | Mystery | Measured | Result | Against | Date |
|---|---|---|---|---|---|
| RUN-033 | Voynich | Glyph-disjoint isomorph pairs at same line position / anywhere | 8044/313100 | Words-in-lines shuffle 9162/341748 | 22 Oct |
| RUN-032 | Voynich | Coincidence between consecutive lines at same position | 0.104 | Random line pairs 0.0964 · words-in-lines shuffle 0.1026 | 22 Oct |
| RUN-031 | Voynich | Period-bigram peak (period, count) in text vs within-word shuffle | p=2 176496 (median 176178) | Shuffle p=2 176299 (median 176180) | 22 Oct |
| RUN-016 | Voynich | Glyph-disjoint isomorph pairs at same line position / anywhere | 13547/546226 | Words-in-lines shuffle 14969/628274 | 22 Oct |
| RUN-015 | Voynich | Coincidence between consecutive lines at same position | 0.1049 | Random line pairs 0.0943 · words-in-lines shuffle 0.0984 | 22 Oct |
| RUN-014 | Voynich | Period-bigram peak (period, count) in text vs within-word shuffle | p=2 189579 (median 189510) | Shuffle p=2 203945 (median 203922) | 22 Oct |

## Applied to

![Voynich Manuscript](https://mysteriesdept.com/media/folio/78r)

**[Voynich Manuscript](https://mysteriesdept.com/mysteries/voynich-manuscript)2 datasets** GC2a transcription, ZL3b transcription

[Download module](https://mysteriesdept.com/files/584f859102c6630777a7c0e3055fc8e1c876dbef7911a4a0f1a7b923a1ead165.py)

Category

Cryptanalysis (zodiac-340 diagnostics)

Version

1.0 · 25 Oct 2026

Licence

MIT

Language

Python

Cite

[BibTeX](https://mysteriesdept.com/methods/MTH08JFX9QJ1JD6/periodicity-transposition-and-isomorph-battery/cite.bib) · [APA](https://mysteriesdept.com/methods/MTH08JFX9QJ1JD6/periodicity-transposition-and-isomorph-battery/cite.txt)

Develop this method

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Authors

**[apollo](https://mysteriesdept.com/u/apollo)** Wrote version 1.0