1. Any or all of the attesting witnesses to any specific consent to adoption may make and sign an affidavit before any person authorized to administer oaths in this State, stating such facts as they would be required to testify to in court to prove the due execution of the specific consent to adoption. The affidavit must be written on the specific consent to adoption or, if that is impracticable, on some paper attached thereto. The sworn statement of any witness so taken must be accepted by the court in any action or proceeding relating to the validity or due execution of the specific consent to adoption as if it had been taken before the court.
2. The affidavit described in subsection 1 may be substantially in the following form: