{"id": 4361, "prediction_verbatim": "BTC price higher in 48h", "created_at": "2026-05-03 06:15:00", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-05 06:41:31", "chain_hash": "74445abcba4e67a434445aec026f55be66e4edd551fb044e3afa1cd2d6f18c2e", "chain_tx": "jE677uY7YMkRAcdWd5A4Yay4L8nYpDRizDrhCpMoawcyTuWf2yV4aBkpfhns9n7gKyMvcmZQakVN2QwjfhJJih4", "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."}