Z-13 cipher
E1126075
UNEXPLORED
The Z-13 cipher is one of the Zodiac Killer’s shortest and most infamous unsolved cryptograms, consisting of just 13 characters that have fueled decades of speculation about its hidden message.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Z-13 cipher canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T14877504 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Z-13 cipher Context triple: [Zodiac Killer, notableCipher, Z-13 cipher]
-
A.
Tunny cipher
The Tunny cipher was a high-level German teleprinter encryption system used during World War II for strategic communications, whose interception and decryption at Bletchley Park significantly aided Allied codebreaking efforts.
-
B.
Lorenz cipher
The Lorenz cipher was a high-level German teleprinter encryption system used during World War II, whose interception and decryption by the Allies led to the development of the Colossus computers.
-
C.
Lucifer cipher
The Lucifer cipher is an early block cipher developed at IBM by Horst Feistel that served as a foundational design precursor to the Data Encryption Standard (DES).
-
D.
Polish Bomba kryptologiczna
The Polish Bomba kryptologiczna was an early electro-mechanical cryptologic device developed by Polish mathematicians to help break the German Enigma cipher before and during World War II.
-
E.
Serpent cipher
Serpent cipher is a symmetric-key block cipher and former AES finalist known for its strong security margin and conservative design based on a substitution–permutation network structure.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Z-13 cipher Target entity description: The Z-13 cipher is one of the Zodiac Killer’s shortest and most infamous unsolved cryptograms, consisting of just 13 characters that have fueled decades of speculation about its hidden message.
-
A.
Tunny cipher
The Tunny cipher was a high-level German teleprinter encryption system used during World War II for strategic communications, whose interception and decryption at Bletchley Park significantly aided Allied codebreaking efforts.
-
B.
Lorenz cipher
The Lorenz cipher was a high-level German teleprinter encryption system used during World War II, whose interception and decryption by the Allies led to the development of the Colossus computers.
-
C.
Lucifer cipher
The Lucifer cipher is an early block cipher developed at IBM by Horst Feistel that served as a foundational design precursor to the Data Encryption Standard (DES).
-
D.
Polish Bomba kryptologiczna
The Polish Bomba kryptologiczna was an early electro-mechanical cryptologic device developed by Polish mathematicians to help break the German Enigma cipher before and during World War II.
-
E.
Serpent cipher
Serpent cipher is a symmetric-key block cipher and former AES finalist known for its strong security margin and conservative design based on a substitution–permutation network structure.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.