While I was in academia, I co-authored a research paper and submitted it to a peer-reviewed student journal for publication. They sent me a PDF copy of Volume 3, Issue 1 in 2014 as proof.
However, the journal itself appears to have went defunct afterwards. Searching for the journal’s official websites reveals PDF copies of their issues from previous years, up to 2013, meaning that the 2014 issue isn’t even publicly available.
Nevertheless, since the article did get published, I currently have this article listed on my professional resume. In case anyone had any questions about that publication, what proof should I show explaining that the article did get published?