N.C. Gen. Stat. § 43-16

All certificates of title to land in the county shall be numbered consecutively, which number shall be retained as long as the boundaries of the land remain unchanged, and a separate page or more, with appropriate space for subsequent entries, shall be devoted to each title in the registration of titles book for the county. Every entry made upon any certificate of title in such book or upon the owner's certificate, under any of the provisions of this Chapter, shall be signed by the register of deeds and minutely dated in conformity with the dates shown by the entry book.