{"id": 2344, "prediction_verbatim": "IWM closes lower on 2026-04-06 (first day of earnings cycle)", "created_at": "2026-04-03 06:54:29", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 07:23:39", "chain_hash": "eca2a5191cc5a29e8f10dae121b561ef4918593207328edf92d790b8cae29db6", "chain_tx": "2C3gUH6Tovp8UdBwmswTT5VUeoonniKQLPjuL7UyJZBGBUVFwQXvHpjgxfR61yPDtg6jad5ySZMzQcd9e4QeEM6d", "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."}