(4)Nothing in this article shall preclude the state or any of its agencies, institutions, or political subdivisions from obtaining and enforcing trademark or copyright protection for any public record, and the state and its agencies, institutions, and political subdivisions are hereby specifically authorized to obtain and enforce such protection in accordance with the applicable federal law; except that this authorization shall not restrict public access to or fair use of copyrighted materials and shall not apply to writings which are merely lists or other compilations.