Wis. Stat. § 137.19: Notarization and acknowledgement.

If a law requires a signature or record to be notarized, acknowledged, verified, or made under oath, the requirement is satisfied if the electronic signature of the person authorized to administer the oath or to make the notarization, acknowledgment, or verification, together with all other information required to be included by other applicable law, is attached to or logically associated with the signature or record.