Latest blog posts
Amanda Bartell
2026 August 10

Share your feedback on the new Crossref Member Practices

In December 2026, we plan to publish new Crossref Member Practices which will set out the standards we expect all Crossref members to meet. From August to October 2026 we are consulting with our members on a draft of these Member Practices. This blog provides the background to this, and explains how you can share your views.

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Madhura Amdekar
2026 August 06

Building Trust through Metadata: a recap of the Crossref learning series

The Crossref community in India is as diverse as the region that it represents, comprising 1605 members, 11 sponsoring organisations, and 5 ambassadors, who between them cover the length and breadth of this country. Between November 2025 and March 2026, we organised three webinars focused on supporting this community with best metadata and publishing practices. We collaborated with the Directory of Open Access Journals (DOAJ) and the Committee on Publication Ethics (COPE) to embed understanding of metadata’s role in the greater context of publishing integrity.

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Kornelia Korzec
2026 July 20

Why PID strategies need more than PIDs: our first position paper

PID strategies are being written around the world right now, and the decisions being made will shape the scholarly record for decades. After 25 years running open scholarly infrastructure—now on behalf of 25,000 members in 167 countries—Crossref has an informed perspective on what those decisions should ideally rest on. Today we’re setting it out in our first position paper: Persistent identifiers in research infrastructure policy: the need for a holistic approach. You can read it online or download the PDF; it’s a 16-minute read.

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Patricia Feeney
2026 July 09

Schema 5.5 now available: adding CRediT, new record types for blogs and posters, and more

Research is rarely limited to a single contributor performing a single role. Behind every research output are people contributing in various ways: software development, data analyses, methodology design, and much more. Often, the same person contributes in several of these ways. Until now, Crossref metadata could only capture part of that picture, but this is changing with Schema 5.5.

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Documentation

OJS platform

Registering your DOI records using the OJS platform

In order to register DOI records with Crossref, you need to set up your OJS (Open Journal Systems) platform to create DOIs on your Crossref DOI prefix, and also set up your OJS platform to send your records to Crossref. You do this in a different way depending on whether you are using OJS 3.4 or OJS 3.3:

You can download the newest versions of OJS in the Public Knowledge Project’s (PKP) documentation.

Additional OJS plugins for Crossref

There are also other important plugins that can be enabled in OJS to enrich your metadata records:

  1. Cited-by (OJS Scopus/Crossref plugin) - as of OJS 3.2, this third-party plugin allows journals to display citations and citation counts (using article DOIs) from Scopus and/or Crossref.
  2. Funding Metadata plugin - as of OJS 3.1.2, it is possible to enable a funder registry plugin for submitting funding information to Crossref. The plugin will use the Open Funder Registry to check against existing funding agencies. The plugin will include funding information in your Crossref DOI deposits.
  3. Similarity Check plugin - if you are using OJS 3.1.2 or above, you are able to use the Similarity Check plugin. This will enable you to automatically send manuscripts to your iThenticate account to check their similarity to already published content. You will need to be subscribed to Crossref’s Similarity Check service for this to work.
  4. ROR plugin - the ROR Plugin for OJS enables authors to add the ROR ID for the organization they are affiliated with.

Getting help with OJS plugins

The team at Crossref didn’t create these plugins - they were either created by the team at PKP, or by third-party developers. Because of this, we aren’t able to give in-depth help or troubleshooting on problems with these plugins.

If you need more help, you can learn more from PKP’s Crossref OJS Manual and PKP’s Open Journals System 3.3 How to guides on DOI & Crossref Plugins plus there’s a very active PKP Community Forum that has more information on how to modify your OJS instance to submit metadata and register DOIs with Crossref.

Alternatively, you can contact the support team at PKP.

Page maintainer: Isaac Farley
Last updated: 2025-September-17