{"id": 4530, "prediction_verbatim": "BTC declines >2% within 48h", "created_at": "2026-05-06 00:10:25", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-08 00:11:16", "chain_hash": "19cf5b6169c9f0aca275cfe8d3d9b90d94ed103761961b97e02e63b0790bf0c3", "chain_tx": "2zGKqqtv5tk5Gdf6WEZ1df8wBMPCHVa1ErDsEnz1TUf4pJ7BxVNiczkmqw6ZNZZ41s1ipLHdJE6QAbUSXRp6G8PD", "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."}