# Z13 is a simple substitution of the writer's name or alias.

> Still possible: Z13 is a simple substitution of the writer's name or alias.

Source: https://mysteriesdept.com/mysteries/zodiac-ciphers/answers/ANS0D71PHC06HYE/z13-is-a-simple-substitution-of-the-writers-name-or-alias  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Zodiac ciphers](https://mysteriesdept.com/mysteries/zodiac-ciphers)[What does Z13 say?](https://mysteriesdept.com/mysteries/zodiac-ciphers/questions/QST0D71PEE83PWE/what-does-z13-say)Answer

Answer · Zodiac ciphers

# Z13 is a simple substitution of the writer's name or alias.

Z13 is a simple substitution of the writer's name or alias.

**Still possible** Answers **1** questionPublished0

## Where it stands

**Still possible** Its tests haven't settled it: none pieces of evidence for, one against. It needs two reviews to be accepted.

## What it predicts

- Some person connected to the case has a 13-letter name whose letter pattern matches Z13's repeats (positions of the three identical symbols and the repeated A, N, M).

## What would rule it out

- The writer is identified by other means and his name does not fit the pattern.

## Evidence none for · 1 against

[Thousands of names and phrases fit the pattern; nothing selects among them.](https://mysteriesdept.com/mysteries/zodiac-ciphers/evidence/EVD0D71PHKT11F1/thousands-of-names-and-phrases-fit-the-pattern-nothing)

Established

AGAINST

## The questions it answers

[What does Z13 say?](https://mysteriesdept.com/mysteries/zodiac-ciphers/questions/QST0D71PEE83PWE/what-does-z13-say)

Open4 answers, none ahead

## Cite it

```
Mysteries Department. (2026). Z13 is a simple substitution of the writer's name or alias. [Answer ANS0D71PHC06HYE]. https://mysteriesdept.com/r/ANS0D71PHC06HYE
```

Key

**ANS** 0D71PHC06HYE

Kind

Answer · hypothesis

Origin

Published

Version

1

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