証明 しょうめい しょう経路 けいろではありませんでした
shōmei shō keirodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 証明証経路

1. Was not a proofreading path.; Was not a verification route.

Past/Perfective
Negative
Polite
Formal Register
Computing