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Is the 2011 decipherment of the Copiale cipher correct?

Asked 26 Oct 2026 by ·3 answers·0·0 following
Answered: The manuscript is a homophonic substitution cipher for eighteenth-century German, with Roman letters as…Passed its tests and review.

Where it stands

Three answers have been proposed. The key is right in the main but some symbols or passages are misread. leads, with evidence 1 for: partly supported by its tests. Two are still possible. Of the two narrower questions under it, none is answered yet.

Why it matters

The site uses this case as the standard for what a solved document looks like, so the grounds for calling it solved should be explicit⁠[1]⁠[2].

Answers 3

Evidence: 1 for
Most likely
Evidence: 3 for
Most likely
None of these.
Failed a test; not refuted outright
Evidence: none yet
Disputed

History

  1. Knight et al. puts forward: the manuscript is a homophonic substitution cipher for eighteenth-century German, with Roman letters as…
  2. Knight et al. puts forward: the key is right in the main but some symbols or passages are misread.
  3. Knight et al.: the content, the Oculists' rules and Masonic high-degree rituals, is specific and matches a documented…For: The manuscript is a homophonic substitution cipher for eighteenth-century German, with Roman letters as…
  4. Asked on this site
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