A Uniform Resource Name (URN) is a specific type of Uniform Resource Identifier (URI) used to identify resources on the internet. Unlike URLs, which specify a specific network address or location, URNs identify resources regardless of their current location.
A URN consists of two main components: a namespace identifier and a specific identifier. The namespace identifier identifies the namespace to which the resource belongs, while the specific identifier within that namespace uniquely identifies the resource.
URNs are intended to provide a persistent and unique identification of resources, regardless of changes in location or availability of the resource on the internet. They are used, for example, for identifying scientific publications, standards, digital library resources, and other resources.
