To date, we have collected around 740 million from 12 different source since we launched our Event Data service service in 2017. Each event is an online mention of the research associated with a DOI, either via the DOI directly or using the associated URL. However, we know that there is much more out there. Because of this, we would like to explore where we could expand.
We invite proposals to conduct a gap analysis for Event Data sources, looking at what we currently collect and seeing what more could be added.
We are delighted to announce the formation of a new Advisory Group to support us in improving preprint metadata. Preprints have grown in popularity over the last few years, with increasing focus brought by the need to rapidly disseminate knowledge in the midst of a global pandemic. We have supported metadata deposits for preprints under the content type ‘posted content’ since 2016, and members currently register a total of around 17,000 new preprints metadata records each month.
It is time to put the ‘R’ back into R&D.
The Crossref R&D team was originally created to focus on the kinds of research projects that have allowed Crossref to make transformational technology changes, launch innovative new services, and engage with entirely new constituencies. Some Illustrious projects that had their origins in the R&D group include:
DOI Content Negotiation Similarity Check (originally CrossCheck) ORCID (originally Author DOIs) Crossmark The Open Funder Registry The Crossref REST API Linked Clinical Trials Event Data Grant registration ROR And for each project that has graduated, there have been several that have not.
This announcement has been in the works for some time, but everything seems to take longer when there is a pandemic going on, including finding time and headspace to plan out our strategy for the next few years.
Over the last year or so we have had our heads down addressing how to scale our 20-yr-old system and operation – and adapting to new ways of working. But we’ve also spent time talking to people, forging alliances, looking ahead, and making plans.
Citations are the backbone of scholarly communication, allowing researchers to point to the evidence for their assertions, and to provide credit to the originators of ideas. As content has moved online, researchers have grown to expect to be able to simply click on citations and follow links to the cited content online. If these citations broke at the same rate and in the same way as normal web links, it would only be a matter of years before the the system started to crumble. It would also mean that links to research outputs would break and adversely affect everyone.
To solve this problem, we built a common infrastructure that can be used by all. It allows citation linking using Digital Object Identifiers (DOIs) between research produced by different organizations (without the need for individual agreements between them). This ensures that citation links are persistent - that they work over long periods of time. However, there is no purely technical solution to the problem of broken links on the web; Crossref members have to keep these links updated, along with rich metadata that everyone in the scholarly ecosystem relies on.
It’s all about the metadata
The collective power of our members’ metadata is available to use through a variety of tools and APIs—allowing anyone to search and reuse the metadata in sophisticated ways.
Members register content with us to let the world know it exists. They send us information called metadata which we collect and store in a standard way. The metadata includes a Digital Object Identifier (DOI) in each record, which links to the content even if it moves to a new website. We make this metadata openly available via our APIs, which means people and machines can incorporate it in their research tools and services. Metadata does not include the full-text of the content itself. While we collect and distribute metadata, we do not change members' metadata. Learn more about the metadata each member is depositing with us using our Participation Reports.
Manuscript tracking services, search services, bibliographic management software, library systems, author profiling tools, specialist subject databases, scholarly sharing networks - all of these (and more) incorporate scholarly metadata into their software and services. They use our free APIs to help them get the most complete, up-to-date set of metadata from all of our publisher members. And of course, members themselves are able to use our free APIs too.
DOIs and persistent identifiers
A persistent identifier is an ongoing, long-lasting digital reference to something. In the scholarly information world, a Digital Object Identifier (DOI) is the type of identifier most commonly used for research objects such as articles, grants, books, datasets, protocols, figures, and more. There are several organizations who register DOIs as agents of the DOI Foundation (DF), and Crossref is one of them. Most DF agencies are in the scholarly information world like us, such as CNKI, JaLC, DataCite, KISTI, and mEDRA. But some agencies register DOIs for entirely separate purposes such as supply chain management in the building and construction industry, or for tracking movies and merchandise in the entertainment industry.
At Crossref, every metadata record that our members register for their content needs to have a unique DOI attached to it, both as a container for that record and as a locator for others to use. A DOI does not signify any value or accuracy of the thing it locates; the value lies in the record’s metadata which gives context about the object (such as contributors, funding bodies, abstract/summary) and enables connections with other entities (such as people (e.g. ORCID) or organizations (e.g. ROR)).
Here’s what a Crossref DOI looks like:
Once a DOI has been registered with us, it should always be used for the same content. Even if the content moves to a new website or a new owner, the same DOI should continue to be used. Though the DOI never changes, its associated metadata is kept up-to-date by the relevant Crossref member.
Page owner: Patricia Feeney | Last updated 2021-April-21