{"id": 4153, "prediction_verbatim": "NVDA declines >1.2% within 48h as market front-runs guidance cut expectations tied to Chinese competitive encroachment in data center inference", "created_at": "2026-04-29 14:39:20", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-01 14:40:00", "chain_hash": "b1295e5ce7e7d6bb8fb84f59bb0610fd8d6e587f9c9378c4283826f6bafa3fec", "chain_tx": "5BsPUEro6rw9Fa4gKkzruesAgCakBE7YkpPSNZ8wbaMxbpUuCEz7Er2EtWnXYUSPnQE5df3DAv9DpnvAdJcG7c5t", "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."}