{"id": 4413, "prediction_verbatim": "BTC price rises within 48h as speculator shorts face forced covering from positive China policy signals", "created_at": "2026-05-03 22:15:31", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-05 22:40:36", "chain_hash": "e0ece2acc0d842ef8b4ac6bc5fb0327d45244b2b6281af58ef4c51eef1cca8f9", "chain_tx": "3fEM9AXve3DdGc8urCxPtisvxNWeErjrJ6zsCh8kmdAU9wTVtHgXFTqAfGUYpgFVdbdjsNY9ATx85GeEQpSznFon", "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."}