I'm writing a technical paper and there's a small annoyance on the pdf of my paper. At the bottom of the first page in the footnote the text
ACM ISBN 978-1-4503-2138-9. DOI: 10.1145/1235
appears. This text throws the formatting of my paper off significantly and it leaves a huge gap of white space towards the bottom of the first page. How can I get rid of this? Is it a problem with the document class "sig-alternate-05-2015"?