N.C. Gen. Stat. § 45-37.1
In all cases where, prior to January 1, 1930, it appears from the margin or face of the record in the office of the register of deeds of any county in this State that the original beneficiary named in any deed of trust, trust indenture, or other instrument intended to secure the payment of money and constituting a lien on real estate, or his assignee of record, shall have made an entry purporting to fully satisfy and discharge the lien of such instrument, and such entry has been signed by the original payee and beneficiary in said deed of trust, or other security instrument, or by his assignee of record, or by his or their properly constituted officer, agent, attorney, or legal representatives, and has been duly witnessed by the register of deeds or his deputy, all such entries of cancellation and satisfaction are hereby validated and made full, sufficient and complete to release, satisfy and discharge the lien of such instrument, and shall have the same effect as if such entry had been made and signed by the trustee named in said deed of trust, or other security instrument, or by his duly appointed successor or substitute.
N.C. Gen. Stat. § 45-37.1