{"id": 2640, "prediction_verbatim": "VIX stays above 24.0 over next 48h (geopolitical premium holds absent de-escalation signal)", "created_at": "2026-04-03 18:10:01", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 18:14:14", "chain_hash": "8dfc9140697791522cf3122af4442183ddadfe2221e01f8fd0602f74a0d5efe6", "chain_tx": "5ptePcPni8CESwh1KiSCT6nKxCNXKpLL1DqeTcz87ruJS9DQjimoaybDhC8JWANjNrzuqWLqy5VPwasLGbXRU7Wd", "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."}