{"id": 2473, "prediction_verbatim": "IWM outperforms SPY by >0.5% over next 48h", "created_at": "2026-04-03 11:45:47", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 12:14:16", "chain_hash": "fefa761b90d04021bdce6b9d29cbbe974868f8c54aeaab5453c80a6bbac942c3", "chain_tx": "5HMudwAMd5bH7hXnANTYcN8HVk4e8T7pS4zV7x9xvqtEU2zTkWETDzMjcuaJT337LEsGAo9FPAE2JeP9gFBZ2buA", "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."}