Constat

Z. It is clear or evident; it appears. Constat de persona: there is certainty as to the person; there is no doubt about the person. V. Nihil facit, etc.; Non constat; Quod constat, etc.

In English law

A certificate by the clerk of the pipe and auditors of the exchequer, made at the request of any person who intends to plead or move in that court for the discharge of any thing, and purporting to certify what appears of record as to the matter; an exemplification under the great seal of the enrolment of letters patent