{"id": 3100, "prediction_verbatim": "S&P 500 will be lower in 24h", "created_at": "2026-04-10 08:23:44", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-11 20:24:09", "chain_hash": "88cd89bcfda1a68500c33b679e147e1996a7ae162c4cb634583b36b6c2f7313e", "chain_tx": "31ebp9Hn9CnSNQf4aHRwKAcCvsPZjVG3ugNkrSys1U8aPnEXrNoWFcomRQTWLgB8iY9UEe2dd5JbP5vVkbJZPHy2", "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."}