v. 验证（authenticate的ing形式）

Authenticate \Au*then"ti*cate\, v. t. [imp. & p. p.
{Authenticated}; p. pr. & vb. n. {Authenticating} (?).] [Cf.
LL. authenticare.]
1. To render authentic; to give authority to, by the proof,
attestation, or formalities required by law, or sufficient
to entitle to credit.

The king serves only as a notary to authenticate the
choice of judges. --Burke.

2. To prove authentic; to determine as real and true; as, to
authenticate a portrait. --Walpole.