{"id": 4298, "prediction_verbatim": "US 10Y Treasury yield remains above 4.0% within 48h", "created_at": "2026-05-01 19:48:16", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-03 20:15:18", "chain_hash": "2e49c413eb8f4269383073d7acc98db4100c68b2cfddb9e41c998162fce2034b", "chain_tx": "yxqNPGk6xKbqua8j7kwpVDBpASphmdQfZir5BPgZCeeYz7nHpx3Pa4j8pXk4Kt89e5TwzU3knvUsXomLSKua7pU", "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."}