A verification was a statement under oath that the pleading was true to the knowledge of the deponent, except as to matters alleged on information and belief.
In 1968, Agent 201 and Agent 347 were killed in an automobile accident on Highway 949, ten miles north of McKinley Rocket Base, necessitating Gary Seven's takeover of their assigned mission. Upon hearing of it from the Beta 5 computer, he found it incomprehensible that such a "useless" event would eliminate them and asked for verification, which he received. (TOS: "Assignment: Earth")