{"id": 3895, "prediction_verbatim": "BTC price lower in 48h", "created_at": "2026-04-23 03:09:04", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-25 03:09:44", "chain_hash": "175aea3abe2f71760efb565c51f4c0f8117cd1d1593d848280e3694d3d8481d7", "chain_tx": "4U99e5aeEK7QB94gbgjje7qf8NW6z3vEfF2Dq7sh4vmh9f3SFsvJcbuHHhdyUd6U5JMGUw8j15XX92XWCXxDP9V8", "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."}