Latest blog posts
Kornelia Korzec
2023 May 12

Metadata connects the global community – summary of our Community update 2023

We were delighted to engage with over 200 community members in our latest Community update calls. We aimed to present a diverse selection of highlights on our progress and discuss your questions about participating in the Research Nexus. For those who didn’t get a chance to join us, I’ll briefly summarise the content of the sessions here and I invite you to join the conversations on the Community Forum. You can take a look at the slides here and the recordings of the calls are available here.

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Patrick Polischuk
2023 May 02

2023 public data file now available with new and improved retrieval options

We have some exciting news for fans of big batches of metadata: this year’s public data file is now available. Like in years past, we’ve wrapped up all of our metadata records into a single download for those who want to get started using all Crossref metadata records. We’ve once again made this year’s public data file available via Academic Torrents, and in response to some feedback we’ve received from public data file users, we’ve taken a few additional steps to make accessing this 185 gb file a little easier.

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Fabienne Michaud
2023 May 01

Similarity Check: look out for a refreshed interface and improvements for iThenticate v2 account administrators

In 2022, we flagged up some changes to Similarity Check, which were taking place in v2 of Turnitin’s iThenticate tool used by members participating in the service. We noted that further enhancements were planned, and want to highlight some changes that are coming very soon. These changes will affect functionality that is used by account administrators, and doesn’t affect the Similarity Reports themselves. From Wednesday 3 May 2023, administrators of iThenticate v2 accounts will notice some changes to the interface and improvements to the Users, Groups, Integrations, Statistics and Paper Lookup sections.

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Amanda Bartell
2023 April 26

ISR part four: Working together as a community to preserve the integrity of the scholarly record

We’ve been spending some time speaking to the community about our role in research integrity, and particularly the integrity of the scholarly record. In this blog, we’ll be sharing what we’ve discovered, and what we’ve been up to in this area. We’ve discussed in our previous posts in the “Integrity of the Scholarly Record (ISR)” series that the infrastructure Crossref builds and operates (together with our partners and integrators) captures and preserves the scholarly record, making it openly available for humans and machines through metadata and relationships about all research activity.

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Documentation

XSD schema quick reference

We support additional schema (not listed here) for legacy purposes.

Deposit schema

Used for registering and updating DOI metadata records:

SchemaPurposeStatusFurther info
grant_id0.1.1.xsdgrant metadatarecommendeddocumentation
crossref5.3.1.xsdfull metadata depositsrecommendeddocumentation
crossref4.8.1.xsdfull metadata depositsrecommendeddocumentation
crossref4.4.2.xsdfull metadata depositsavailabledocumentation
AccessIndicators.xsdlicense dataimported
relations.xsdrelationships between DOIs and other identifiersimported
clinicaltrials.xsdrelationships between publications that report on a clinical trialimported
doi_resources4.4.2.xsdused to append or update specific sets of metadata to an existing recordrecommendeddocumentation

Query schema

Used for formatting XML queries:

SchemaPurposeFurther info
Crossref_query_input2.0.xsdused to input XML queries to the systemdocumentation

Metadata retrieval schema

Used for retrieving our metadata:

SchemaPurposeFurther info
crossref_query_output2.0.xsdreturns query results in xsd_xml format, used for Cited-by resultsdocumentation
crossref_query_output3.0.xsdreturns query results in UNIXSD formatdocumentation
unixref1.1.xsdreturns query results in the UNIXML format, also used to support the data delivered by our OAI-PMH servicedocumentation
unixref1.0.xsdreturns query results in the UNIXML format for some older content, also used to support the data delivered by our OAI-PMH servicedocumentation
crossref_output3.0.1.xsdused to support data files generated for bulk data distributiondocumentation
OAI-PMH.cr.xsdaccommodates differences between Crossref’s OAI-PMH implementation and the published Open Archives OAI 2.0 schemadocumentation

Page owner: Patricia Feeney   |   Last updated 2021-October-05