{"id": 2538, "prediction_verbatim": "SPY higher in 48h", "created_at": "2026-04-03 14:09:47", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 14:14:11", "chain_hash": "fe005b827650e1f6858c02106f87c155bf8459ca445125a16aa815cf02b04ae3", "chain_tx": "4ZVr3zMHraZzjTW2iqUyhYRyjny5R6GnDobPeztsL2ixyXR6NCi3596KrgyJhvTiYVrB2UVgs1GdFbJj5CN16No2", "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."}