• A Uniform Resource Identifier (URI) that uses the “urn” scheme. URNs were originally conceived to be part of a three-part information architecture for the Internet, along with Uniform Resource Locators (URLs) and Uniform Resource Characteristics (URCs), a metadata framework. URNs were conceived as persistent, location-independent identifiers assigned within defined namespaces. Since RFC 3986 in 2005, use of the terms “Uniform Resource Name” and “Uniform Resource Locator” has been deprecated in technical standards in favor of the term “Uniform Resource Identifier” (URI), which encompasses both. ← Wikipedia

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