{"id": 2287, "prediction_verbatim": "XLV (healthcare ETF) underperforms QQQ by >1.2 percentage points over next 48h", "created_at": "2026-04-03 04:43:37", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Inconclusive \u2014 Completely wrong - XLV likely outperformed QQQ (both up ~0.1%, exact XLV data missing but unlikely underperformance >1.2%)", "resolved_at": "2026-04-05 05:55:24", "chain_hash": "0f21fc7a4c43358980fe53aa47175ae551ee0db1f6589334cb94306dc18ea1eb", "chain_tx": "fZ93hawFaFYGYb58ap7WeJxuc8QzyC3v2izBchY2ypx9U3oHvdpDAMxuvS2t4ysoFtbgJwL67f8TkFXYAJNMYyd", "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."}