Latest blog posts
Amanda Bartell
2022 September 22

What is our role in preserving the integrity of the scholarly record?

The integrity of the scholarly record is an essential aspect of research integrity. Every initiative and service that we have launched since our founding has been focused on documenting and clarifying the scholarly record in an open, machine-actionable and scalable form. All of this has been done to make it easier for the community to assess the trustworthiness of scholarly outputs. Now that the scholarly record itself has evolved beyond the published outputs at the end of the research process – to include both the elements of that process and its aftermath – preserving its integrity poses new challenges that we strive to meet… we are reaching out to the community to help inform these efforts.

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Lucy Ofiesh
2022 September 16

2022 Board Election

I’m pleased to share the 2022 board election slate. Crossref’s Nominating Committee received 40 submissions from members worldwide to fill five 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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Jennifer Kemp
2022 September 06

Accessibility for Crossref DOI Links: Call for comments on proposed new guidelines

Our entire community – members, metadata users, service providers, community organizations and researchers – create and/or use DOIs in some way so making them more accessible is a worthy and overdue effort. For the first time in five years and only the second time ever, we are recommending some changes to our DOI display guidelines (the changes aren’t really for display but more on that below). We don’t take such changes lightly, because we know it means updating established workflows.

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Geoffrey Bilder
2022 August 26

Martin Paul Eve is joining our R&D group as a Principal Developer

I’m delighted to say that Martin Paul Eve will be joining Crossref as a Principal R&D Developer starting in January 2023. As a Professor of Literature, Technology, and Publishing at Birkbeck, University of London- Martin has always worked on issues relating to metadata and scholarly infrastructure. In joining the Crossref R&D group, Martin can focus full-time on helping us design and build a new generation of services and tools to help the research community navigate and make sense of the scholarly record.

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Documentation

XML query results and errors

Query results may be requested in three different formats: XSD_XML, UNIXREF, and UNIXSD.

UNIXSD is the recommended and most robust format, but XSD_XML is the default for many services for legacy reasons.

Possible errors returned by malformed or insufficient queries include:

  • an invalid XML query will return no result (<body/>)
  • either first page or author must be supplied
  • either ISSN or journal title must be supplied
  • unreasonable DOI found (an unreasonable DOI does not follow the expected DOI format (10.XXXX/yyy...) and/or exceeds 200 characters)
  • piped query must contain either 9 pipes (for journals) or 11 pipes (for books/conference proceedings)
  • either ISSN/ISBN or series/volume title must be supplied.

Page owner: Jennifer Kemp   |   Last updated 2020-April-08