{"id": 2599, "prediction_verbatim": "SPY closes higher in 48h relative to 2026-04-03 close", "created_at": "2026-04-03 16:37:14", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 16:44:23", "chain_hash": "581a10b0018d2fe5356c075624f1a1735e1d9b08edf11eed4d5474fb98352603", "chain_tx": "2FuWqtpo3pLcmHrCEgPXEWntRAbtNhJ9RqRnZXwMzsoNBfJv4eZHzwFcg3FuaLeax5ARkMg1WHq3aC3tzYsf5Kgg", "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."}