Track record

Every probability this model publishes is appended to a SHA-256 hash-chained ledger at publication time: UTC timestamp, tournament, market, player(s), model probability, the contract price at that moment, and the exact model version. Each line commits to the entire history before it — a retroactive edit changes every subsequent chain head, so the record is verifiable by anyone, not merely trusted. Tournaments with no qualifying analysis still get a “no-call” line: completeness is what makes a timestamped record honest.