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event.dispatcher.default.consumers = versioning, discovery, eperson, harvester, doi

DOIs using DataCite and Item Level Versioning

If you enabled Item Level Versioning you should enable the VersionedDOIIdentifierProvider instead of the DOIIdentifierProvider. The VersionedDOIIdentifierProvider ensures that newer versions of the same Item gets a DOI looking as the DOI of the first version of and item, extended by a dot and the version number. With DSpace 6 this also became the default for handles if Item Level Versioning is enabled. In the configuration file \[dspace\]/config/spring/api/identifier-service.xml you'll find the possiblity to enable the VersionedDOIIdentifierProvider. If you want to use versioned DOIS, please comment out the DOIIdentifierProvider as only one of both DOIProviders should be enabled at the same time.

Command Line Interface

To make DSpace resistant to outages of DataCite we decided to separate the DOI support into two parts. When a DOI should be generated, reserved or minted, DSpace does this in its own database. To perform registration and/or reservation against the DOI registration agency a job has to be started using the command line. Obviously this should be done by a cron job periodically. In this section we describe the command line interface, in case you ever want to use it manually. In the next section you'll see the cron job that transfers all DOIs designated for reservation and/or registration.

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