{"id": 3924, "prediction_verbatim": "NVIDIA stock (NVDA) will be higher in 24h", "created_at": "2026-04-24 04:09:20", "direction": "up", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-25 16:09:41", "chain_hash": "26257dde176837f3f97d93818e70d321944f003ce3777c3afb160802b32c9b6a", "chain_tx": "3A7THBMYmHJcFzo3EViPa7V4Atn9pbLXMMcvdxKrQAjoHsSVhF7c6pdrcksdoRranrNUmwYY42J1VR1EPKEPn4eo", "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."}