Latest blog posts
Martin Eve
2023 September 28

Feedback on Automatic Digital Preservation and Self-Healing DOIs

Thank you to everyone who responded with feedback on the Op Cit proposal. This post clarifies, defends, and amends the original proposal in light of the responses that have been sent. We have endeavoured to respond to every point that was raised, either here or in the document comments themselves. We strongly prefer for this to be developed in collaboration with CLOCKSS, LOCKSS, and/or Portico, i.e. through established preservation services that already have existing arrangements in place, are properly funded, and understand the problem space.

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Lucy Ofiesh
2023 September 27

2023 board election slate

I’m pleased to share the 2023 board election slate. Crossref’s Nominating Committee received 87 submissions from members worldwide to fill seven open board seats. We maintain a balance of eight large member seats and eight small member seats. A member’s size is determined based on the membership fee tier they pay. We look at how our total revenue is generated across the membership tiers and split it down the middle. Like last year, about half of our revenue came from members in the tiers $0 - $1,650, and the other half came from members in tiers $3,900 - $50,000.

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Ginny Hendricks
2023 September 12

News: Crossref and Retraction Watch

https://0-doi-org.pugwash.lib.warwick.ac.uk/10.13003/c23rw1d9 Crossref acquires Retraction Watch data and opens it for the scientific community Agreement to combine and publicly distribute data about tens of thousands of retracted research papers, and grow the service together 12th September 2023 —– The Center for Scientific Integrity, the organisation behind the Retraction Watch blog and database, and Crossref, the global infrastructure underpinning research communications, both not-for-profits, announced today that the Retraction Watch database has been acquired by Crossref and made a public resource.

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Amanda French
2023 September 07

Open Funder Registry to transition into Research Organization Registry (ROR)

Today, we are announcing a long-term plan to deprecate the Open Funder Registry. For some time, we have understood that there is significant overlap between the Funder Registry and the Research Organization Registry (ROR), and funders and publishers have been asking us whether they should use Funder IDs or ROR IDs to identify funders. It has therefore become clear that merging the two registries will make workflows more efficient and less confusing for all concerned.

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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