on two shelves hanging on another wall are installed renderings of the four Certificates of authenticity that must have gone to the buyers of the original artworks
This appropriation is a rebellious act in itself—it puts into question the concepts of authenticity and ownership of art which this piece of paper stands for. Authenticity falls on the shoulders of the gallery owner, while ownership is what’s perennially on sale via the artwork and this piece of paper. That the artist is absent from this transaction is precisely the point: the moment an artwork is sold, the artist ceases to own the work as well.