{"id": 3279, "prediction_verbatim": "Brent crude price will be higher in 48h", "created_at": "2026-04-12 23:54:19", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-15 00:14:49", "chain_hash": "04a429d14855ce1bf76a4b12eef0056a38b8b2fc322e52af43f98ded92671901", "chain_tx": "3Tf3yqPHfU3S59qNmBSQTSrkxEgSKpNmAhzGGkabk45vUZBhL769qKh5CQDFw5EVNBRzXMz1wMyuk6S8TMj1BSWi", "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."}