{"id": 2584, "prediction_verbatim": "10Y Treasury yield remains below 4.38 over next 48h", "created_at": "2026-04-03 16:03:33", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 16:14:13", "chain_hash": "061d0757498f32e980905da86ee59498d13ce946042b542742af321f87803045", "chain_tx": "5p8j6VuPUPdttoPXo5Tj2pkc6fPvCkB3jRxDsMDMniqbcxfbKNPQpfVLAWaeg5tQfVUEADouEBrTqjbYrqCWkLo1", "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."}