{"id": 5464, "prediction_verbatim": "Brent crude higher within 48h", "created_at": "2026-05-26 02:13:42", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-28 02:36:22", "chain_hash": "bc4afecf4c86b940ab3cbe0f95a34d1fbb9b64d5a3183a59578925dedcf59df3", "chain_tx": "A17psPQuydbhcaFQtWpqNakZMfKNhjKzMrLPEr8yjYosu7H1CEKHkUZUB4gfXBGRZTo62ji66ivEz1syav755YR", "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."}