{"id": 3715, "prediction_verbatim": "EUR/USD stable in 48h", "created_at": "2026-04-18 20:08:44", "direction": null, "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-20 20:33:17", "chain_hash": "b8616ee1d820f36477d68d1bfc32db0f2ccd6b00359cb89274f414d95cbd90ab", "chain_tx": "5zt4TRf5m76QjeBb4kwC63W5b7ccvc33u2aCFbd1SB9t2nkW6TysNc947rdCgzXqnFNZMz5d3oUVUEPV9zEitFPf", "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."}