Verité

This is literally French for “truth,” but it’s taken on a media context. “Cinema verité” is a style of filmmaking noted for realism.

From Brittanica:

a French film movement of the 1960s that showed people in everyday situations with authentic dialogue and naturalness of action.

The word “verité” on its own has become a reference to accuracy and attention to detail.

Why I Looked It Up

From Spooked:

Ian also believed in verité when it came to fostering illusions, so people making pretext calls from his agency worked out a special room equipped with tape recorders that played background noise suitable to the identities they had assumed that day.