{"id": 4822, "prediction_verbatim": "Oil volatility (OVX or crude futures range expansion) higher in 48h", "created_at": "2026-05-10 22:47:56", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-12 23:02:38", "chain_hash": "c8f8bcc0e4355e6cd6da02e522923a8d2ba7baf5d5343c961bcbb3260609c9f1", "chain_tx": "5WM78YBQTczLKS74d7t9UNbuN1Zvuak2MKM59gt4SZgcx3RoCHmkuuL2C43zmnN9J8LbKAuFwhNDxcZk3XzsaJQD", "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."}