Sorry for being off topic, but what is going on with the timestamps of this paper? The latest version (version 2) has 2018-05-28 as the date above the abstract

Sorry for being off topic, but what is going on with the timestamps of this paper? The latest version (version 2) has 2018-05-28 as the date above the abstract, but it was added to arxiv on 2014-12-15. Version 1 has the date 2022-05-18, but was added to arxiv on 2010-10-29. I briefly skimmed the .tex source file, but I couldn't find any explanation of the date in there. Did someone mess with the clock on the build server?