{"id": 4760, "prediction_verbatim": "BTC lower in 48h", "created_at": "2026-05-10 00:11:29", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-12 00:32:27", "chain_hash": "d18b97573e7acc16aa5f67474bb687ebefa081101c65cb16787f93b474cc1b2f", "chain_tx": "5N299rS2WQ9BTASwKwoTieRm6oU5cBWcKbEnwy1SP2oX9nNUaVurJtLfhhpW1oD2mRv1QeLvxdU4MMmfMsUavEoB", "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."}