{"id": 4150, "prediction_verbatim": "BTC price declines or remains flat over next 48h as risk-off sentiment from Musk-Altman trial publicity compounds existing crypto sector weakness", "created_at": "2026-04-29 14:09:10", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-01 14:10:00", "chain_hash": "a5a311e34d8532d5af4d693eb5885fe883d6ceeadbd4ad4a5c93b4d58f34e361", "chain_tx": "5S3gzvvtawxMjMhzK5H29YpqbiambYTGrHFWCgM6Cw9UK6jengpd9jxQy8vNLwLNiShTrQEFGSET87zjD1W7nZXx", "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."}