We have some rather unusual news to share: Crossref fees are going down again. At its meeting in Paris earlier this month, the Crossref Board approved two further recommendations from the Resourcing Crossref for Future Sustainability (RCFS) project: effective 1st January 2027, we will reduce the majority of Content Registration fees for all 25,000 members, and remove fees for back-year records altogether.
Content Registration fees haven’t increased in around 20 years, and this is the first significant change to them in that time—downwards. Since these fees account for the largest share of Crossref’s revenue (around 60%), and since every member registers DOI records, these changes reach further than anything we’ve announced under the RCFS project so far.
The infrastructure that registers and distributes Crossref metadata has been running and growing for more than two decades. It now does considerably more than it was built to do, and it shows: two large, tightly coupled monoliths (Content System and REST API), where a change in one place risks breaking something in another.
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.
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.
Crossref’s Similarity Check service is used by our members to detect text overlap with previously published work that may indicate plagiarism of scholarly or professional works. Manuscripts can be checked against millions of publications from other participating Crossref members and general web content using the iThenticate text comparison software from Turnitin.
The 2000 members who already make use of Similarity Check upload almost 2,000,000 documents each month to look for matching text in other publications.
We have some great news for those 2000 members –– a completely new version of iThenticate is on its way, and will start to roll out to users in the coming months.
New functionality has been developed based on your feedback over the past few years and includes:
An improved Document Viewer that makes PDFs searchable and accessible, with responsive design for ease of use on different screen sizes. All of the functionality of the Viewer and the Text-only reports in the previous version have been streamlined into just two views: Sources Overview and All Sources.
Improved exclusion options to make refining matches even easier. Smarter citation detection now identifies probable citations both inline and in reference sections.
A new “Content Portal” where you can see what percentage of your own content has been successfully indexed for the iThenticate comparison database, and download reports of indexing errors that need to be fixed.
A new API for integration with manuscript submission systems allows display of the largest matching word count and the top 5 source matches alongside the Similarity Score.
The maximum number of pages and file size per document has been doubled to 800 pages/200 MB.
The new document viewer in iThenticate v2.0
Improved reference exclusion
Crossref members can use Similarity Check directly by logging in, or via an integration with a submission/peer review system. We are working with many system providers to bring v2.0 to you as soon as possible. In the meantime, we are looking for members to help us test the new system directly in the iThenticate user interface. If you are interested and can spare a few hours some time in the next month please let me know.
And if your organisation is not yet using Similarity Check to assess the originality of the manuscripts you receive do take a look at the many benefits the service has to offer.
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Similarity Check news: iThenticate v2.0 ready for launch
