{"id": 4363, "prediction_verbatim": "BTC lower within 48h", "created_at": "2026-05-03 06:45:02", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-05 07:10:24", "chain_hash": "1e66861d84bf3e30b3b30eec3105634652db7e1dbe645e04b9afa6baf424e95f", "chain_tx": "3AyR7nAPQpUY8fjme8WAHdMsAogifwr6EFZ312PVawdNKrpYGiLvHMwToHafHQnyTHRocAsdCsgEus3XLrmXQmAV", "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."}