{"id": 5426, "prediction_verbatim": "Brent crude closes lower within 48h relative to $97.90 reference level", "created_at": "2026-05-25 10:43:45", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-27 11:06:37", "chain_hash": "70bc36bf1f497fbb6cf2a7425a4421d8ec55312ff146f6be73031aedbe792a1b", "chain_tx": "4vfyDzu8kfZybmgxMEN6WU3Zq2HgdJan3rTwuMKd2nYAFA1WDpThfZ1iqgT8nCsbAYPTY4HnYP3bMkEt6vfSrmvc", "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."}