{"id": 4214, "prediction_verbatim": "Tech-heavy indices (QQQ, NDX) experience above-average intraday volatility (>1.2% daily range) within 48h", "created_at": "2026-04-30 07:09:33", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-02 07:14:48", "chain_hash": "57a887e8af489859037c4d81801cb3b5fcbd608da74783001a13f316d844fbc4", "chain_tx": "4X2tMR86SB7pvPJfN65AUU3WaUSKsNcsEKxjgNQjac1bxBVd2bPGjL1vEjJKsvtPzpsezujh56x9nyeqapbzaUXq", "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."}