{"id": 4930, "prediction_verbatim": "Oil prices (WTI crude) higher in 48h", "created_at": "2026-05-12 12:32:17", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-14 12:33:02", "chain_hash": "e6af1eb4e61da9be21499e0723d7047c8448ed9968e3b4341b2a77eb4d915000", "chain_tx": "Ky1P9F1iiUWKLEEs5whNbip3ugMwcbJsz4fukaEYm5QfhztCvgqFhRsbegSMejwbuxumTby8S9K3MkbWwK9erCY", "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."}