As Crossref celebrated its 25th anniversary last year, we are highlighting some of the most active and engaged regions in our global community.
Over the past 25 years, the makeup of Crossref membership has evolved significantly; founded by a handful of large publishers, we now have more than 24,000 members representing 165 countries. Nearly two-thirds of them self-identify as universities, libraries, government agencies, foundations, scholar publishers, and research institutions.
It’s been said that Americans are unusual in tending to ask “Where do you work?” as an initial question upon introduction to a new acquaintance, indicating a perhaps unhealthy preoccupation with work as identity. But in the context of published research, “What is this author’s affiliation?” is a question of global importance that goes beyond just wanting to know the name – and perhaps prestige level – of the place a researcher works.
As Crossref membership continues to grow, finding ways to help organisations participate is an important part of our mission. Although Crossref membership is open to all organisations that produce scholarly and professional materials, cost and technical challenges can be barriers to joining for many.
We are pleased to announce that—effective 1st January 2026—we have made two changes to grant record registration fees that aim to accelerate adoption of Crossref’s Grant Linking System (GLS) and provide a two-year window of opportunity to increase the number and availability of open persistent grant identifiers and boost the matching of relationships with research objects.
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:
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.
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.
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.
