{"id": 5253, "prediction_verbatim": "Brent crude higher within 48h", "created_at": "2026-05-18 04:41:15", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-20 04:50:43", "chain_hash": "513b1d2a8f11388ea6477c074f48014c210be5b3e59aff7370722d83c26b547c", "chain_tx": "61gezbxA5mHbPuA32Jwm17Euc9ZEoL4pdYHyMhUhfsu3AtgCE3cEG7AvUnFFQeiy9WEmuCMLsYmArrTbeQtBMZS2", "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."}