{"id": 3640, "prediction_verbatim": "VIX lower in 24h", "created_at": "2026-04-17 11:45:23", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-19 00:08:46", "chain_hash": "84f2a719ec472494b67dfc385e27217c496e6dde2fd1af7a89dc618b56fd4c4a", "chain_tx": "4shTqKiRssovaHKk28zGwi24XvkrBbPZ9LNdJmXbmD1FkvRyxKZdu76Dhb7S5y5bPhTGGYaHjzaZJWTWLgTRDtm1", "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."}