{"id": 3737, "prediction_verbatim": "Housing market ETF higher in 48h", "created_at": "2026-04-19 03:08:44", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-21 03:11:27", "chain_hash": "088999df19d8119ee7ae8c59d23bd869b3cceee969d4d2f0f04f8105093e8326", "chain_tx": "2kjxZVXNhUaVf52mants6RcGVbeM6ZhAzoaWXserj9Us37cxuqqd3e99PCTNY8rgNdWZgvdWUXJjbe3ZDKc6rnZa", "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."}