vidimera

Etymology
. Attested since 1559.

Verb

 * 1) to certify, to attest (a copy (of a document or the like) as matching the original)
 * 2) to certify, to verify, to attest (the correctness or validity of something, more generally)
 * 1) to certify, to verify, to attest (the correctness or validity of something, more generally)

Usage notes
Fairly high register.