datacite:identifier
Mandatory
Occurrence: 1
The Identifier is a unique string that identifies a resource.
Usage Instruction
Recommended best practice is to identify the resource by means of a string or number conforming to a formal identification system. Example formal identification systems include the Uniform Resource Identifier (URI), the Uniform Resource Locator (URL), the Digital Object Identifier (DOI), and the URN:NBN. Also this can be a direct URL, or a redirection URL, like PURL, HANDLE or other international resolution mechanisms.
The ideal use of this element is to use a direct link or a link to a jump-off page (persistent URL) from identifier in the metadata record to the digital resource or a jump-off page.
Smart practice:
- use a stable URL
Do Not Confuse With
- :ref:`dci:alternativeIdentifier` (Use
datacite:alternativeIdentifierto list other identifiers than the primary identifier applied to the same resource.) - :ref:`dci:relatedIdentifier` (Use
datacite:relatedIdentifierto refer to related resources.) - :ref:`aire:file` (Use
oaire:fileto point to the resource being desccribed by this metadata, e.g. the fulltext file.) - :ref:`dc:source` (Use
dc:sourcefor bibliographic citation of the originating resource.)
Use the identifier link as value.
The type of the Identifier (occurrences: 1).
Allowed values, examples, other constraints
Note
Unlike DataCite, OpenAIRE allows for DOIs and other types of identifiers.
In this example the handle redirects to the jump-off page. A jump-off page is a good way to refer to. The end-user has the opportunity to see more information about the object(s) he has found, see the context and enjoy the other services a local repository has to offer:
<datacite:identifier identifierType="Handle">http://hdl.handle.net/1234/5628</datacite:identifier>