Kernrechtsfrage
Whether the cantonal appellate court arbitrarily refused to treat Confederation bond yields as notorious facts when assessing lost-interest damage.
Extrahierter Entscheid
Yes. The yields were readily verifiable from public official sources and therefore notorious; the appellate court should have taken them into account.
Extrahierte Begründung
Under Art. 151 CPC, notorious facts need not be proven. Publicly accessible bond-yield data can be verified by anyone, so insisting on proof was arbitrary in outcome.