Latest blog posts
Martyn Rittman
2024 November 15

Research Integrity Roundtable 2024

For the third year in a row, Crossref hosted a roundtable on research integrity prior to the Frankfurt book fair. This year the event looked at Crossmark, our tool to display retractions and other post-publication updates to readers. Since the start of 2024, we have been carrying out a consultation on Crossmark, gathering feedback and input from a range of members. The roundtable discussion was a chance to check and refine some of the conclusions we’ve come to, and gather more suggestions on the way forward.

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Dominika Tkaczyk
2024 November 06

How good is your matching?

In our previous blog post in this series, we explained why no metadata matching strategy can return perfect results. Thankfully, however, this does not mean that it’s impossible to know anything about the quality of matching. Indeed, we can (and should!) measure how close (or far) we are from achieving perfection with our matching. Read on to learn how this can be done! How about we start with a quiz? Imagine a database of scholarly metadata that needs to be enriched with identifiers, such as ORCIDs or ROR IDs.

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Kornelia Korzec
2024 October 28

Update on the Resourcing Crossref for Future Sustainability research

We’re in year two of the Resourcing Crossref for Future Sustainability (RCFS) research. This report provides an update on progress to date, specifically on research we’ve conducted to better understand the impact of our fees and possible changes. Crossref is in a good financial position with our current fees, which haven’t increased in 20 years. This project is seeking to future-proof our fees by: Making fees more equitable Simplifying our complex fee schedule Rebalancing revenue sources In order to review all aspects of our fees, we’ve planned five projects to look into specific aspects of our current fees that may need to change to achieve the goals above.

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Lucy Ofiesh
2024 September 24

Meet the candidates and vote in our 2024 Board elections

On behalf of the Nominating Committee, I’m pleased to share the slate of candidates for the 2024 board election. Each year we do an open call for board interest. This year, the Nominating Committee received 53 submissions from members worldwide to fill four open board seats. We maintain a balanced board of 8 large member seats and 8 small member seats. Size is determined based on the organization’s membership tier (small members fall in the $0-$1,650 tiers and large members in the $3,900 - $50,000 tiers).

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Crossref API Learning Hub

We want everybody to have access to the metadata in our API but we also acknowledge that this is not a trivial task and some help does not hurt. Here we will collect some of the tools and resources that our team prepare and that you can freely use to start your metadata exploring adventure.

Choose your path:

First steps

  • API 101 for publishers, researchers, and librarians with Postman and Crossref: Postman offers an friendly interface to build and modify your API queries. In this collection you will find templates to which you can add or modify the parameters of your choice.
  • Intro to Crossref API using code: if your aim is to create workflows to download, analyze, and visualize data, you will probably want to create programs and scripts. We currently have available the following tutorials using R and/or Python that you can use and modify to your convenience.

Retrieve specific metadata

  • Crossref API for funding data: how to query data from the funders endpoint and grant-type records.

  • Get Crossref citations: this project contains a Jupyter notebook that shows how to compare citation counts from different Crossref endpoints.

  • Get journal-level metadata from Crossref’s API using R: how to retrieve journal-level metadata from a list of ISSN.

  • Cursor-based pagination using R: how to retrieve long lists of records using cursors.

Retrieve all the metadata

You have an alternative to the REST API if your goal is to obtain the entire body of Crossref’s records. With the public data file you have access to every DOI ever registered with Crossref. Learn more about the Public Data File

Some convenient tools:

  • API cheatsheet: we prepared a quick-reference sheet that you can use to get started with building your queries.

  • JSON-file viewer: When you make a request to the REST API you will get a JSON file in the output. If you are making requests from your web browser and depending on its version, perhaps you will need a JSON-viewer plugin. For example, click this simple request. If you see a string of seemingly disorganized text, you will need to install a plugin. Alternatively, you can use other viewers such as JSON hero, which provides an extra layer of interactivity.

Page owner: Luis Montilla   |   Last updated 2024-March-07