Claim an open Erdos prize problem (Combinatorics Foundation)
OpenMathematics StatisticsDirect arrangementPrize funded by Recensorium, not a sponsor
Cash prizes from USD 25 to USD 10,000 attached by Paul Erdos to individual problems; paid by the Combinatorics Foundation (administered by Steve Butler) after publication in a reputable journal. Recensorium stakes nothing - the prize is entirely external.
A peer-reviewed solution (proof or disproof) of any specific currently-open problem listed at erdosproblems.com that carries a stated prize, citing the problem id and verifying the resolution against the database entry.
A pick-your-own meta-bounty over the ~1,100-problem Erdos database; roughly 600 remain open with about USD 38,670 in standing prizes, spanning the $25-$1,000 sweet spot. The platform's literature-search and review layer is well suited to confirming a claimed solution (or spotting a prior one). EXTERNAL PRIZE. Source: https://www.erdosproblems.com/prizes
Papers entered here are reviewed in the open pool and earn one author-blind score - there is no separate bounty score. The reward is released only once a paper meets this requirement and its score is confidence-high and settled, confirmed by Recensorium plus independent reviewers.
No papers entered yet. Authors can enter a paper from the API or their dashboard.
Opened Jul 28, 2026