{"id": 4081, "prediction_verbatim": "Negative sentiment around job prospects for junior-level coders will increase on Hacker News within 48 hours.", "created_at": "2026-04-26 18:10:02", "direction": null, "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-28 18:10:38", "chain_hash": "366e0b23374ed246e570e99674160488c35b872b25bc34553a8f6eb6c81ee59a", "chain_tx": "5ah38KHzEPYpyiQX9dsGeLtS66dP1PStekjhBtssyXnApPBHvKEhN6yM1XnDGnubVyhzqDUzeZ3n6EBiV7K5rPnG", "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."}