Crossref runs open infrastructure to link research objects, entities, and actions—creating a lasting and reusable scholarly record that underpins open science. Together with our >25,000 members in 167 countries, we drive metadata exchange and support 2.1 billion monthly API queries, facilitating global research communication, for the benefit of society.
Crossref: The sustainable source of community-owned scholarly metadata
This paper describes the scholarly metadata collected and made available by Crossref, as well as its importance in the scholarly research ecosystem. Containing over 106 million records and expanding at an average rate of 11% a year, Crossref’s metadata has become one of the major sources of scholarly data for publishers, authors, librarians, funders, and researchers. The metadata set consists of 13 content types, including not only traditional types, such as journals and conference papers, but also data sets, reports, preprints, peer reviews, and grants. The metadata is not limited to basic publication metadata, but can also include abstracts and links to full text, funding and license information, citation links, and the information about corrections, updates, retractions, etc. This scale and breadth make Crossref a valuable source for research in scientometrics, including measuring the growth and impact of science and understanding new trends in scholarly communications. The metadata is available through a number of APIs, including REST API and OAI-PMH. In this paper, we describe the kind of metadata that Crossref provides and how it is collected and curated. We also look at Crossref’s role in the research ecosystem and trends in metadata curation over the years, including the evolution of its citation data provision. We summarize the research used in Crossref’s metadata and describe plans that will improve metadata quality and retrieval in the future.
Two billion citation links in Crossref help research travel further - Crossref
We’ve recently reached an important milestone for the research nexus: the works in our metadata corpus are now connected with over 2 billion citation links! This is a great opportunity to share a dedicated dataset and discuss why these are important for science.
Manuscript submission systems and metadata completeness in Crossref: Patterns and associations
The importance of open research information, particularly publication metadata, is widely recognised. Crossref is one of the most important infrastructures for registering open metadata as part of DOI record registration. It is widely known, however, that the metadata of many publications is far from complete, with many publishers making certain metadata openly available, but failing to do so for other metadata elements. Publishers’ ability to register this metadata with Crossref depends on their capacity to capture and retain this data in their production workflows. Manuscript submission systems are an important, yet largely overlooked, factor in the extent to which publishers make metadata available through Crossref. In this paper, we present the results of an analysis investigating the relation between the level of metadata that publishers deposit with Crossref and the submission systems that they deploy for their journals. We have looked at the 153 publishers with the largest amounts of publications in Crossref and concentrate on the four most commonly used systems: Editorial Manager, ScholarOne, Open Journal Systems (OJS) and eJournalPress. We show that some submission systems appear better suited to capturing certain metadata elements. However, there are always cases where publishers using the same system differ widely in the level of metadata they register, suggesting that technology is not the only prohibiting factor and other considerations are at play.
Position paper: persistent identifiers in research infrastructure policy - Crossref
PIDs have become central to national and international open research strategies, but identifiers alone cannot deliver the connected, open record that researchers, institutions, funders, publishers, and policymakers depend on. Effective research infrastructure rests on three interdependent elements: open, persistent identifiers; rich, open, and linked metadata; and the sustainable governance and resilient operation of the organisations involved. Crossref urges policymakers to evaluate all three together.
The Research Nexus vision for a more connected scholarly community
Crossref envisions “a rich and reusable open network of relationships connecting research organizations, people, things, and actions; a scholarly record that the global community can build on forever, for the benefit of society”. This Research Nexus expands on the importance of research objects being persistently and uniquely identified. The scholarly community has an established practice of connecting things such as citations to others’ work and it is increasingly critical to identify relationships beyond citations, bringing together published work, unpublished work, institutions, individuals, and identifying the actions that they take e.g., funding, publishing, creating, modifying, citing, and sharing. The Research Nexus brings together metadata and relationships to build a joined-up picture of the scholarly ecosystem and helps everyone identify these relationships and how they change through time. This vision is possible if all parts of the scholarly ecosystem (and beyond) work together, including various scholarly infrastructure organizations.
From Albums to Streams: How Modularity Changes Systems
Scientific publishing is breaking under document-centric formats designed for a physical world. Borrowing from music’s shift from albums to streaming, we make the case that open access alone cannot deliver reuse, trust, or scale. The future of science depends on modular, interoperable research components that move across tools, enabling new workflows, tools, and ecosystems.
Center for Open Science
At the Center for Open Science, our mission is to increase openness, integrity, and reproducibility of scholarly research. Promoting these practices within the research funding and publishing communities accelerates scientific progress
OME Project — open-metadata-exchange documentation
OME enables open educational resources to create, publish, and update their metadata on a peer-to-peer network. By solving authoring, publishing, and discovery issues, this network will provide broad visibility to current islands of OER information.
Evaluating Multilingual Metadata Quality in Crossref
Introduction: Scholarly research spans multiple languages, making multilingual metadata crucial for organizing and accessing knowledge across linguistic boundaries. These multilingual metadata already exist and are propagated throughout scholarly publishing infrastructure, but the extent to which they are correctly recorded, or how they affect metadata quality more broadly is little understood. Methods: Our study quantifies the prevalence of multilingual records across a sample of publisher metadata and offers an understanding of their completeness, quality, and alignment with metadata standards. Utilizing the Crossref API to generate a random sample of 519,665 journal article records, we categorize each record into four distinct language types: English monolingual, non-English monolingual, multilingual, and uncategorized. We then investigate the prevalence of programmatically-detectable errors and the prevalence of multilingual records within the sample to determine whether multilingualism influences the quality of article metadata. Results: We find that English-only records are still in the vast majority among metadata found in Crossref, but that, while non-English and multilingual records present unique challenges, they are not a source of significant metadata quality issues and, in few instances, are more complete or correct than English monolingual records. Discussion & Conclusion: Our findings contribute to discussions surrounding multilingualism in scholarly communication, serving as a resource for researchers, publishers, and information professionals seeking to enhance the global dissemination of knowledge and foster inclusivity in the academic landscape.
Who Will Keep Research Data Infrastructure Open and Running?
The scientific community must consider the longevity of open research infrastructure—why it might fail and how to prevent it.
Who Will Keep Research Data Infrastructure Open and Running?
The scientific community must consider the longevity of open research infrastructure—why it might fail and how to prevent it.
LinkML – Bring structure to your data.
An open framework that simplifies authoring, validating, and sharing data — providing an accessible platform for interdisciplinary collaboration and a reliable way to define and share data semantics.
OpenMD Medical Reference
Medical reference platform and search engine indexing billions of documents from government agencies, global health organizations, and medical journals.
The Gradual Merging of Repository and CRIS Solutions to Meet Institutional Research Information Management Requirements
Much has been said in recent times about the alleged dichotomy between Institutional Repositories (IRs) and Current Research Information Systems (CRISs). According to this highly ideological argument, IRs would be the platforms to support the non- commercial initiative jointly carried out by HEIs – and specifically their Libraries – in order to freely disseminate their research outputs, whereas CRISs would support the whole institutional research information management (RIM) with special emphasis on projects and funding. RIM being an activity oriented towards reporting for research assessment exercises and thus tightly connected to the institutional funding, the support from the Management at HEIs for CRIS implementation and operation and for the Research Office traditionally in charge of such tasks would be much higher than for the much less relevant IR. Moreover, the awareness of researchers and scholars towards such platforms will usually be much higher for the CRIS – from whose accurate and complete depiction of their research activity their salaries will ultimately depend – and it won’t be unusual to collect complaints on the need to ensure that both systems are simultaneously fed with the appropriate, often duplicated information. According to this conception, it is often hard to get the institutional Research Office and Library to work together for improving the end-user experience by enhancing their system interoperability. While much of this may still be happening at a number of HEIs, the general landscape is swiftly evolving and it's not that accurate anymore to describe the RIM system configuration at institutions in such oversimplified terms. CRIS/IR interoperability is now a fairly widespread feature that will allow both platforms to efficiently exchange information and reinforce each other's features, and especially the borders between what each of these platforms is and does are becoming increasingly blurred. Commercial CRISs are gradually becoming compliant with the OAI-PMH protocol and thus becoming able to offer institutions an integrated repository functionality, while the main open source IR platforms have now developed extended data models that will allow them to deliver features traditionally associated to CRISs such as project and funding management, hence becoming suitable solutions for research institutions where purchasing or developing a highly-sophisticated CRIS is not a top priority. This paper aims to describe the areas where CRIS/IR interoperability is taking place, and will provide a set of use cases for institutional research information system configuration involving IRs, CRISs and a combination of both. These will show how both systems are now increasingly merging for best serving institutions and their researchers.
openAFRICA
Africa's Largest Volunteer Driven Open Data Platform. openAFRICA aims to be largest independent repository of open data on the African continent.
GetDOI.com - Get Crossref DOI Through Sponsored Membership | SRND
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