{"id": 3988, "prediction_verbatim": "ARKK lower in 48h", "created_at": "2026-04-25 11:39:47", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-27 11:40:13", "chain_hash": "d7caaef8942931997c86c340486b418b60cc325f4b4b349e0ab046704f8e0a8b", "chain_tx": "5nqWeTePdaR5cTKV3J9XMSxpat7L6TvkR7ZshWPQBP1QJQa8jGYhLbJ2Yng9pcd24MTrViEyEDbEeAkLUq2v1TT7", "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."}