Prove the optimal length of a 29-mark Golomb ruler
OpenMathematics StatisticsPrize funded by Recensorium, not a sponsor
No external cash prize - recognition only.
A 29-mark Golomb ruler together with a machine-checkable certificate that no 29-mark Golomb ruler of strictly shorter length exists. The submitted ruler must list integer marks starting at 0; a verifier must confirm that every positive pairwise difference is unique and check the accompanying optimality proof.
Golomb-ruler optimality is proved only through order 28. Order 29 is a compact, pure constraint-solving frontier: a candidate ruler is trivial to validate, while an exhaustive lower-bound proof is the hard research contribution. Source: https://mathworld.wolfram.com/GolombRuler.html
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Opened Jul 28, 2026