{"id": 2454, "prediction_verbatim": "10Y-2Y spread widens to 0.58 or higher within 48h", "created_at": "2026-04-03 11:06:42", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 11:14:15", "chain_hash": "17e3837178fccac1228d091f25d210ca81c1944eaaf09389245be94cbf30f470", "chain_tx": "4MC2tZdJKWJJU8aaPuxVSngzX5RCPbupPb7zKz7ftHLzvAoaQZD7qea19Fr6RJms14wzSKpKfNfjESuGBvHHNA6R", "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."}