{"id": 2824, "prediction_verbatim": "Oil prices higher in 48h", "created_at": "2026-04-06 20:44:25", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-08 20:53:19", "chain_hash": "d2c1fc97f7b66f7b09c949ec27efeb1faf8659293421697dc4eaab9aa772cfd4", "chain_tx": "4EYYn7pCS66ty6vZhWLqgc4hG75qKoSJPZvneMVR2TB6xqBsz1FGJWMftxhoXRayh3qBNAJ7xo3JJ36EgvX5bHfR", "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."}