{"id": 2468, "prediction_verbatim": "IWM closes lower by 48h", "created_at": "2026-04-03 11:32:31", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 11:44:16", "chain_hash": "cfa32c3418b42acf997f652da5f354f4c630a6a3250aa7a2495f3eac1552e20b", "chain_tx": "5CUrd6U1BFJLim1GLPArGu8971E6p1qr4BVxgrnDokhxBepWW8BXppPtiAq46QiJfrXrHLNa6r9PGR4XafCJ5p4r", "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."}