Weltzeituhr (World Clock) city lists as key material

From a reconstructed 1989 list and the modern list, alone or with a width-7 columnar step

In plain English: From a reconstructed 1989 list and the modern list, alone or with a width-7 columnar step, using a key based on themes from the sculpture (Egypt, CIA, Berlin, etc.). Every combination within the stated scope was tested (636 thousand configurations); none produced a valid solution. This record is negative within the tested scope.

NOISE Tier 2

How to read this record

Verdict – ELIMINATED (ruled out within the tested scope), NOISE (nothing beyond what chance produces for a search of this size; also shown when a record stored no verdict of its own), INCONCLUSIVE (the test left candidates or options standing, or could not decide, so it does not rule the method out), INTERESTING (slightly above random, almost certainly coincidence), SIGNAL (statistically unusual, warrants investigation), or FULL MATCH (all 24 known letters correct).
Confidence Tier – Tier 1 = mathematical proof, valid while its stated assumptions hold. Tier 2 = every possibility within the stated scope tested. Tier 3 = partially tested or sampled. Tier 4 = not yet properly tested.
Configs Tested – How many different key/parameter combinations were tried.
Best Score – How many of the 24 known plaintext letters the best attempt matched (out of 24). N/A means no such score could be read from this record.
Keystream Consistency (Bean) – Whether the key values at different positions are mathematically consistent with each other. The check only holds when the known letters stay in their carved positions (no letters rearranged or removed), and the full set used here assumes the standard A to Z alphabet.
Scope Limitations – What this elimination does not rule out.

Configs Tested: 636,006
Best Score: 7 / 24 known letters matched · low, no sign of a solution
Confidence: Tier 2: Exhaustive search under stated assumptions. Does not eliminate multi-layer variants.
Date Tested: 2026-02-19
Script: scripts/thematic/berlin_clock/e_s_134_weltzeituhr_ddr_era.py

Scope Limitations

This elimination does not rule out:

Key material other than the city names, initials and counts on the clock's faces
A width-7 column shuffle combined with keys other than the few chosen for it (the Washington, Berlin and Moscow face initials and some related keys)
Other Berlin-themed approaches

Assumptions

City names, initials or counts on the clock faces give the key or a keyed alphabet

Reproduce

PYTHONPATH=src python3 -u scripts/thematic/berlin_clock/e_s_134_weltzeituhr_ddr_era.py

Requires the kryptos repo, Python 3.11+, PYTHONPATH=src. Some recent scripts may not be in the public repository yet.

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