{"id": 2566, "prediction_verbatim": "SPY higher in 48h", "created_at": "2026-04-03 15:16:11", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 15:44:12", "chain_hash": "84f269ceb336aa216fc14cfce3b25589fcfa4f195129d0f5a8664c12c9f9bd32", "chain_tx": "skVtQkuiwsNj9KpnpjJeYaNtkVynijNpWy2QRWUpiUf9ijhAFY9BRgYyLgvHDQX6YbvnQzvSuyug99qmxWmaq7g", "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."}