(1) Subject to section 46, where, in the case of a protected work, a name purporting to be that of the author appears on copies of the work as published or, in the case of an artistic work, appeared on the work when it was made the person whose name so appears (if it is his or her true name or a name by which he or she is commonly known) shall, in any action brought by virtue of this Part, be presumed, unless the contrary is proved, to be the author of the work.