{"id": 4366, "prediction_verbatim": "BTC prices higher in 48h", "created_at": "2026-05-03 08:44:58", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-05 09:10:29", "chain_hash": "56240297d079ed214aa1c5e2cf7fa6340536a102728a57afdd230f7dec8e99f5", "chain_tx": "5irfZWFaP4WqnUtK33pGS7G17xt4DaLxfnUfTSwNV3fv8aT7pRidbhefKPUvCTXJxvNQ3Ayy7FBzkX6m2qXp5VwJ", "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."}