{"id": 4592, "prediction_verbatim": "BTC volatility (intraday range) expands within 48h as institutional risk teams digest Citi's systemic fragmentation warning; price direction remains ambiguous but volatility premium rises", "created_at": "2026-05-07 03:40:59", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-09 03:41:30", "chain_hash": "2179908bee642b1423f5ab1b3fcda4984843249224e67bf65b9fbcd218f26c7d", "chain_tx": "23kFUNBip2LyMmqa81xs3VDzGQx1sK5jgHZ4vVwHMnbNKxZWshssLoSRQoP9BiqNeMcBqQNLcoUNuzfQ8tEfarQB", "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."}