2001 born: ARK spec + NAAN registry
2005? born ARK resolver on internet (NOID first?) (when code first available)
2009? CDL helps found DataCite
2010? born EZID / N2T as fee-based, (partial) cost-recovery service (DOIs&ARKs)
by 2018, 120 clients internationally
2017 DataCite announces changes to membership/fee structure based on volume of
activity; CDL decides to support DataCite by transitioning EZID non-UC
DOI customers to DataCite, and to create open community to support ARKs
2018 CDL and DuraSpace plan the AITO concept
Fall-2018 Launch of community engagement John Kunze publishes the first ARK specification and the NAAN registry
2004 John makes the first public ARK resolver (noid.cdlib.org) available on the Internet and shares the code base
2006 ARK resolver renamed N2T.net per a vision of community ownership, starts doing compact identifiers
2009 CDL helps found DataCite to promote the use of DOIs
2010 CDL releases EZID as a fee-based, partial cost-recovery service supporting both ARKS & DataCite DOIs
2010-2016 CDL (Joan Starr) grows the EZID service to 120 clients globally with a goal to achieve full cost-recovery
2015 Blog post on principles of open scholarly infrastructure (Bilder, Lin, Neylon) re-affirms community vision
2016 DataCite announces intention to change their fee structure and introduce service fees to EZID based on volume of activity
2017 CDL approaches DuraSpace to consider the viability of an open-source project/community for ARKs
2018 The ARKsInTheOpen.org project launches