{"id": 2915, "prediction_verbatim": "10Y Treasury Yield higher in 48h", "created_at": "2026-04-08 03:37:26", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-10 03:53:48", "chain_hash": "12f23e4e1dfa300e3b730accff82d4bc461a98182714851eb06fa6c279ce758a", "chain_tx": "2VeBLrS3ZkcA4726ntc9MJ6xoTNYKuqfv1z9DsL9kHrRpwKZ9t38Tshh59mpV1LJ5n9mY2h4sX2X5nsfqncnbNNH", "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."}