परोपदिष्टं परोक्षम् ॥ कZ_०१.९.०६ ॥
paropadiṣṭaṃ parokṣam
Was von einem anderen übermittelt wird, ist mittelbarer Beweis.
Information distortion (bias, deception, error), which is why Kautilya pairs it with direct checks and inference from results.