Scholarly metadata, deposited by thousands of our members and made openly available can act as “trust signals” for the publications. It provides information that helps others in the community to verify and assess the integrity of the work. Despite having a central responsibility in ensuring the integrity of the work that they publish, editorial teams tend not be fully aware of the value of metadata for integrity of the scholarly record. How can we change that?
Crossref was created back in 2000 by 12 forward-thinking scholarly publishers from North America and Europe, and by 2002, these members had registered 4 million DOI records. At the time of writing, we have over 23,600 members in 164 different countries. Half of our members are based in Asia, and 35% are universities or scholar-led. These members have registered over 176 million open metadata records with DOIs (as of today). What a difference 25 years makes!
In our 25th anniversary year, I thought it would be time to take a look at how we got here. And so—hold tight—we’re going to go on an adventure through space and time1, stopping every 5 years through Crossref history to check in on our members. And we’re going to see some really interesting changes over the years.
The Frankfurt Book Fair is the largest book fair in the world, and therefore a key event on our calendar. Held annually in Frankfurt, Germany, the 77th Frankfurt Book Fair (October 15–19, 2025) saw 118,000 trade visitors and 120,000 private visitors from 131 countries. The Crossref booth was located, as usual, in Hall 4.0 where all the stands with information about academic publishing can be found. Four Crossref colleagues attended the Book Fair this year, and in this blog post, you can read more about their meetings, experiences, and plans.Â
TL;DR. Metadata Manager will be retired at the end of 2025. Over the past four years, we have been developing a new helper tool to replace it, and that tool has now reached a stage of maturity that means we will be able to switch off Metadata Manager by the end of the year.
We encourage you to include references (citation lists, bibliographies, data and software citations) with all content you register. A key benefit is that they will appear in Cited-by query results. You can include references when your first register your DOI records, or you can add them to existing DOI records later. Learn more about the benefits of registering your references.
Including references (or adding them to an existing deposit) can be done by:
Crossref XML plugin for OJS: You must first enable References as a submission metadata field and then enable the Crossref reference linking plugin, to include references in your initial deposit, or add them later.
Record registration form: Our new record registration form for journal articles has a built-in field for adding references. Learn more about how to use the record registration form.
Metadata Manager: If you’re still using the deprecated Metadata Manager, there’s a field where you can add references and Metadata Manager will attempt to match your references to their DOIs. If you want to add references to an existing deposit, simply find the existing record, add your references, and resubmit. Learn more about updating article metadata using Metadata Manager.
Simple Text Query allows you to both find the DOIs for your references and add them to the metadata for a DOI that you have already registered with Crossref. Please note that this method will overwrite any references previously deposited for the content item - if you’ve previously added references to an item, and want to add more references using Simple Text Query, you need to include both the existing and the new references in your deposit.
If your details have been entered correctly, you will see a success message, showing that your deposit has been submitted to the system queue for processing. When the reference deposit has been submitted, you will receive an email containing the XML deposit generated by the form. After that submission has been processed (usually within minutes of your submission), you will receive a submission log by email with the results of your submission.
