{"id": 2437, "prediction_verbatim": "WTI crude closes higher within 48h", "created_at": "2026-04-03 10:26:17", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 10:40:42", "chain_hash": "1c782684d1720b5ff9d9197300a4f2b30914107d8248526e4c51b37e682a147b", "chain_tx": "5cEQ7HcgVKbPd4AiTTgwPR74KqFWskXi38jLQ6PhJYm7bG6DSKBeJ1i7GLz5khSRNUfvJDucf1ijNBrncCKpLika", "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."}