{"id": 5384, "prediction_verbatim": "Thermal coal futures (Yuan-denominated, offshore contract proxies) move higher in 48h window. Note: China domestic coal trading halts weekends; prediction resolves Monday open onward.", "created_at": "2026-05-24 08:29:43", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-26 08:36:17", "chain_hash": "5a3ad10e0bff14b420941d6c116a5a4cb07c1774e704512b28aaca4e8e12367a", "chain_tx": "4P5SrQU1zA3Mgdx2uAWcsR5sDxe112qFyeCaQq4VacvuXtqn7pjhpMPPcxVZw45c2VyLo15p2cWNtBr8mHWMcr2N", "verify": "sha256(f'{prediction_verbatim}|{created_at}|{id}') must equal chain_hash, and the Solana tx memo must read 'workshop:pred:<id>:<chain_hash>' with a timestamp BEFORE resolved_at. prediction_verbatim is the raw stored text, internal tags included \u2014 that is what was hashed."}