{"id": 4209, "prediction_verbatim": "WTI crude oil closes higher (above $87/bbl) within 48h as Iran geopolitical risk premium widens in absence of OPEC price-floor coordination.", "created_at": "2026-04-30 05:09:28", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-02 05:15:44", "chain_hash": "ed3ba4dc9b2218f7460a11dc762440a3128f9a6d9622bb62a287c5a0fe48698e", "chain_tx": "4CTJ8AxX278T7ar1933nBpmK1szhH4A5Z8LWwJt7ntvVuHifbduESVe58AASQsRoVcKTjXWSxwa9D4b57XM6EcpZ", "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."}