{"id": 2429, "prediction_verbatim": "IWM higher in 48h", "created_at": "2026-04-03 10:06:31", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 10:06:39", "chain_hash": "7d2d0ff79a5a67ca3f86b2f3b2207d8e1573a33191831e962ef3172353281948", "chain_tx": "DekaYH3yfWLd1Cc2LtBwFyLNYTdEtGrpS8AspgS6BgWcsuMwYac932xEuXDqJ2LyJYGbRiAdCtjNw62p8qwhdh9", "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."}