Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
A URN (also called a persistent identifier or name) is a persistent, location-independent identifier for a network-accessible resource. URNs generated from the HUL Name Resolution Service (NRS) look like this (urn-3:FHCL:12345) and are used like URLs (http://nrs.harvard.edu/urn-3:FHCL:12345). See the NRS section of this web site for more information.
