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Persistent Identifiers

The UW Libraries provide two tools to help create persistent identifiers or persistent archived versions of web pages.


  • Use perma.cc to create a permanent snapshot of a webpage or web resource that you'd like to reference in a publication, such as an article, dissertation, or another web resource. This "snapshot" will create an archived version of the referenced page as of a specific date in time, and will give it a persistent address.
  • Use EZID to create a permanent address for a website, such as a project website, curriculum materials, etc. The back-end location of the resource can be changed, but the public-facing URL for the item(s) will remain the same.

UW provides institutional accounts for both of these services. To get signed up with either service, email libdata@uw.edu with information about your project and which service you'd like to use. You can also email us with any questions about either service.