1. A copy of one of the following must be placed in the record of the confirmatory adoption:
(a) The birth certificate of the child listing the prospective adoptive parent as a parent of the child;
(b) A court order establishing parentage of the child; or
(c) Any other evidence that is deemed sufficient by the court to establish parentage of the child.
2. A document or other evidence described in subsection 1 is confidential.