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In 2018 the California Digital Library (CDL) and DuraSpace (now LYRASIS) announced a collaboration aimed at building an open, international community around Archival Resource Keys (ARKs) and their use as persistent identifiers in the open scholarly ecosystem.

On 26 In January 2021, that the community that matured from that collaboration was renamed , the

ARK Alliance (,


and it became the new public face of the work of that continues from the ARKs-in-the-Open project continues. Please visit as the first stop for information on about ARKs – their users, community, software, best practices, etc. What remains on this project website is mostly wiki The older website (this wiki) continues to provide collaboration support for the ARK Alliance's working groups listed in the sidebar.Over 600

Project Summary

As of January 2021 over 700 institutions (research, not-for-profit, private, government) across the world have had registered to use ARKs.  They’ve  They created an estimated 8.2 billion ARKs with publicly resolvable links to objects (digital, physical, people, places, etc).

Since 2001, CDL has had served as the incubator for ARK infrastructure, consisting primarily of the specification, a registry of organizations using ARKs, and a global resolver service. Now, to To achieve long-term sustainability, the ARK infrastructure must had to emerge from CDL and mature in partnership with multiple organizations and community participants to guide its future.


  • Assembling and consulting with an ARK advisory group,

  • Developing procedures for shared maintenance of the organizational registry,

  • Consulting with the wider ARK community on requirements, priorities and models for shared community and infrastructure management,

  • Guiding the ARK specification through the IETF Informational RFC process, as well as,

  • Participating in an initiative to gauge the scope of ARK usage world-wide.

These activities are were just a start, and we continue to grow. To become involved, please fill out our Expression of Interest form and our Initial Interest Survey. If you’d like to stay up-to-date on the latest developments in this project, please see the Communications page on this wiki. To get started assigning ARKs, check out the ARK FAQ and request a NAANgrowth continues in the ARK Alliance.