DOI Technology

	DOI Technology The Digital Object Identifier (DOI) System is an implementation of the CNRI Handle SystemŽ, in which the term "DOI" is used instead of "Handle" to describe the identifiers. The Handle System web site includes both background material on the Handle System technology, and three specifications, which have been submitted as IETF Internet Drafts. Also of interest to the DOI community is a discussion of Handle System Scalability. Handle System IETF Internet-Drafts: "Handle System Overview", August 2000 "Handle System Namespace and Service Definition", August 2000 "Handle System Protocol (ver 2.0) Specification", October 2000
	As part of the Handle System software, CNRI developed a web browser extension called the CNRI Handle System Resolver, which works with Netscape (version 3.0 and higher) and Internet Explorer (version 3.0 and higher) running under Windows 95, 98, and NT (with additional platforms in development). It enables browsers to recognize the handle protocol and resolve a handle to a URL. Without the plug-in, web browsers must be directed to a Proxy Server which understands the handle protocol. CNRI maintains two public proxy servers addressed by "hdl.handle.net" and "dx.doi.org".
To demonstrate the DOI System and its underlying Handle System technology, this web site uses two methods of DOI resolution for site navigation. Underlined text contains DOIs embedded in URLs that are resolved using a http proxy server. They work for anyone using a standard browser. The small gold symbols -- -- accompanying most text-based links represent DOIs which resolve using the Handle System protocol directly. Navigating with these DOIs requires that you download and install the CNRI Handle System Resolver web browser plug-in.
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International DOI Foundation Updated: 1 Nov 00