{"id": 4820, "prediction_verbatim": "OIL lower in 48h", "created_at": "2026-05-10 22:17:47", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-12 22:32:30", "chain_hash": "a352accb2f4a02fe8877e8c34d1d75d1367d530d1b68289e90d95a62a3dfbcee", "chain_tx": "5dBRfmVutAjWKHEXgJj6pLVQ21CJcfm8k3nkho8MFXaxGdZGsgBV2MqjACtMfK6Qy4QFhhzdthDCLvF29xk1NBWj", "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."}