John Kunze is an Identifier Systems Architect at the California Digital Library. With a background in computer science and mathematics, he wrote BSD Unix software that comes pre-installed with Mac and Linux systems, and has contributed heavily to the creation of standards for URLs, archiving (BagIt), and web archiving (WARC). While working at NLM, he chaired the NISO committee for the Dublin Core metadata standard and began an analysis that to creation of the ARK identifier scheme. His current work focuses on data citation, metadata vocabulary building (yamz.net), and open, scheme-agnostic resolver infrastructures (n2t.net). A recent collaboration with the European Bioinformatics Institute formally harmonized support of over 500 "compact actionable identifier" schemes between the n2t.net and identifiers.org meta-resolvers.