认证者的英文：
authenticator

authentically ad.
确实地；真正地

Being authentically or genuinely such by birth.
纯种的出身纯正或血统纯净的

To substantiate or authenticate with evidence.
证实用证据证明为真

One that is not authentic or genuine; a sham.
冒牌货假的或冒充的人、物；赝品

In term of law, they is equally authentic.
就法律条款而言，它们具有同等的效力。