The property of being attestable.

One who attests.

Able to be attested.

In an attestable way.

plural of attestability

plural of attester

Of the nature of attestation.

Attesting; furnishing evidence.

(transitive) To affirm to be correct, true, or genuine. / (transitive) To certify by signature or oath. / (transitive) To certify in an official capacity.

A thing that serves to bear witness, confirm, or authenticate; validation, verification, documentation. / A confirmation or authentication.