N.C. Gen. Stat. § 10B-136: Form of evidence of authority of electronic notarial act.

Electronic evidence of the authenticity of the official electronic signature and electronic seal of an electronic notary of this State, if required, shall be attached to, or logically associated with, a notarized electronic document transmitted to another state or nation and shall be in the form of an electronic certificate of authority signed by the Secretary in conformance with any current and pertinent international treaties, agreements, and conventions subscribed to by the government of the United States. (2005-391, s. 4.)