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

DOIs for different levels

DOIs at different levels

A DOI may refer to a journal or book (a title-level DOI), or to a specific article or chapter.

Like a set of nesting dolls, a journal may be made up of volumes, issues, and articles

Journals and DOIs

Like a set of nesting dolls, a journal may be made up of volumes, each containing a number of issues, each containing a number of articles. You can assign a DOI at each level, for example:

  • journal-level-DOI (sometimes called the title-level-DOI) 10.5555/QYPF2031. Like an ISSN, it refers to the whole journal
  • volume-level-DOI 10.5555/FFFU4804
  • issue-level-DOI 10.5555/QKLE5634
  • article-level-DOI 10.5555/CNBT7653

The role of the journal-level-DOI, volume-level-DOI, and issue-level-DOI is to link persistently to a point in the journal structure. These DOIs do not have any associated content, and it does not cost anything to register these DOIs.

However, article-level-DOIs do have associated content, and therefore a fee applies to register these DOIs.

Books and DOIs

Like a set of nesting dolls, a book may be made up of chapters. Again, you can assign a DOI at each level, for example:

  • book-level-DOI (sometimes called the title-level-DOI) 10.5555/ZAAR1365. Just like an ISBN, it refers to the whole book.
  • chapter-level-DOI 10.5555/TFWD2627

Both book-level-DOIs and chapter-level-DOIs have associated content, and therefore a fee applies to register these DOIs.

Learn more about our fees for different content types, and how to construct your DOIs.

Page owner: Isaac Farley   |   Last updated 2020-April-08