{"id": 5109, "prediction_verbatim": "NVDA closes lower in 48h relative to session open on 2026-05-15", "created_at": "2026-05-15 10:40:40", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-17 10:41:16", "chain_hash": "bd7bea4d349fa6f8123910c8c76be4c8d880b1a30845378eec1f4040777da6b0", "chain_tx": "331kwjhwSXShMPVBDJdMEKTA8upX5pmthhvcRTWqCmZAEJfBVuDk8RiwyezK8FwwwnyihxCW87nw9Ar4KBNz4dUr", "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."}