{"id": 2600, "prediction_verbatim": "10Y Treasury Yield closes lower in 48h relative to 2026-04-02 level of 4.33", "created_at": "2026-04-03 16:37:14", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 16:44:23", "chain_hash": "f0bfe295b27bfb87185578c9fb8c85b82e227d61ee11d78cb7be985910c83c51", "chain_tx": "6dtNoqvWPkkPaWfJKkNw8cT5WfBJDupcjJLdwLEePareRt4dGsZwNbd8cFh4RNLN48916EutrgGvdJTmBcBtfWg", "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."}