{"id": 4102, "prediction_verbatim": "S&P 500 lower in 24h", "created_at": "2026-04-27 03:40:17", "direction": "down", "timeframe": "24h", "score": 0.18, "outcome": "Wrong \u2014 NVDA moved +4.0% ($208 \u2192 $217)", "resolved_at": "2026-04-28 03:40:25", "chain_hash": "99c8035f3dd13fab8f5703b99a587558d3f8050b6b13c5520498ac052fa49378", "chain_tx": "24dcTYZtbD6PiJPj3JogbrfdELAJykXehRpfmcXrxG7iv1AgVkEFHS61Y4W6vdokWsz6tX2ZAZyfDFSt3S32fB5w", "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."}