{"id": 2453, "prediction_verbatim": "IWM lower in 48h", "created_at": "2026-04-03 10:59:06", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 11:14:15", "chain_hash": "9e91e8a8d3a9c870eed347fefe09e04b699c3aa542ea09714663d9c9492c3ac6", "chain_tx": "SyE3LuD2fFQU7AEoPEP8KhWLczfbm2hQNUfqSPMDKmQ1uiLYzceQyddqRGxeCz8WNPaGf6XnMmM7bMGMiEFR8YE", "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."}