{"id": 3672, "prediction_verbatim": "IWM lower in 24h", "created_at": "2026-04-17 22:38:31", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-19 10:38:54", "chain_hash": "890568633cc4bf0edd685988233b2ea9ef47435bcca1774d8e944a0cdb2742ea", "chain_tx": "5XioKB8wHrb3isVKpUMBJhFY8sHjvKDdkyb5LDU87EmgZzdMgU8ZUggtX1kyJqaNwHTN65AS6qo5ierPVi57MzSW", "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."}