1. Identifier (M)

The Identifier is a unique string that identifies a resource (occurrences: 1).

Allowed values, examples, other constraints

Format should be “10.1234/foo”

1.1 identifierType (M)

The type of the Identifier (occurrences: 1).

Allowed values, examples, other constraints

Controlled list values (DataCite)

  • DOI

Controlled list values (OpenAIRE)

  • ARK
  • DOI
  • Handle
  • PURL
  • URN
  • URL

Note

Unlike DataCite, OpenAIRE allows for DOIs and other types of identifiers.

Example

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<identifier identifierType="DOI">
 10.1594/WDCC/CCSRNIES_SRES_B2
</identifier>