{"id": 3922, "prediction_verbatim": "SPY lower in 24h", "created_at": "2026-04-24 03:39:25", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-25 15:39:46", "chain_hash": "76009605d59726e9cb313451316de78061aff54db00ce6fdac71b0f0786f7672", "chain_tx": "2Ck1K3QVKpSsAE3uY2DbnqyqcSM6MAubSUuiN8MWxqt9ZRS8iUjASeb9UcCKVVC68hVbkJgwmwR7TsCP6R4TDaRT", "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."}