There is a scientific paper with a proof based on its own existence

It is a simple example of a self-referencing paper which contains a formal proof based on its own existence. The purpose of this paper is to demonstrate, in an intriguing Descartian way, how the mere existence of a scientific paper can influence the space of scientific truths. This paper also provides an example of a single self-referencing loop in the citation network without any other “outlink”. Moreover, self-referencing in this paper is necessary because it supports nothing less than the existence of the paper itself. As a trivial consequence of  self-referencing, this paper also represent an example of a paper which has at least one citation not older than itself at the moment when it is published.