{"id": 3291, "prediction_verbatim": "COIN price higher in 48h", "created_at": "2026-04-13 03:24:26", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-15 03:44:52", "chain_hash": "bfae0486d2b518431c659972f808b938c3780be0a9e6b3002a4dfda47cae6db4", "chain_tx": "61J1HV69KNTFX4w5hT2xTCUCwXfJ13DvmAiXKQUjP56nivw3AMwTmAfSiAyS91mT5NktR78cVQF6dPjghNPhUq3P", "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."}