A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : The ARK Persistent Identifier Scheme
Author(s) : J. Kunze, R. Rodgers
Filename : draft-kunze-ark-15.txt
Pages : 45
Date : 2008-5-22
The ARK (Archival Resource Key) naming scheme is designed to
facilitate the high-quality and persistent identification of
information objects. A founding principle of the ARK is that
persistence is purely a matter of service and is neither inherent in
an object nor conferred on it by a particular naming syntax. The
best that an identifier can do is to lead users to the services that
support robust reference. The term ARK itself refers both to the
scheme and to any single identifier that conforms to it. An ARK has
five components:
[http://NMAH/]ark:/NAAN/Name[Qualifier]
an optional and mutable Name Mapping Authority Hostport (usually a
hostname), the "ark:" label, the Name Assigning Authority Number
(NAAN), the assigned Name, and an optional and possibly mutable
Qualifier supported by the NMA. The NAAN and Name together form the
immutable persistent identifier for the object independent of the URL
hostname. An ARK is a special kind of URL that connects users to
three things: the named object, its metadata, and the provider's
promise about its persistence. When entered into the location field
of a Web browser, the ARK leads the user to the named object. That
same ARK, inflected by appending a single question mark (`?'),
returns a brief metadata record that is both human- and machine-
readable. When the ARK is inflected by appending dual question marks
(`??'), the returned metadata contains a commitment statement from
the current provider. Tools exist for minting, binding, and
resolving ARKs.
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