(an example of) evidence that is sufficient to show that something is a fact
evidence, authentication
Cases of word usage
1) that can be used as proof in a law court (admissible)
2) a written statement, made on oath, (to be) used as legal proof or evidence (affidavit)
3) and accusing statement, especially one made without proof (allegation)
4) to believe (something) before there is proof (assume)
5) to be or give clear proof of something (attest)
6) an official written or printed statement that may be used as proof or evidence (certificate)
7) (of evidence) based on details that suggest something strongly but do not provide direct proof (circumstantial)
8) the act of identifying a person, thing; proof of who a person is, e.g. a passport (identification)
9) to supply proof of (something); show (something) beyond doubt to be true (prove)
10) without proof (unfounded)