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RegisterDOI | Simplified DOI Registration for Publishers & Researchers

Get genuine Digital Object Identifiers (DOIs) for your research articles, journals, and publications through our trusted registration service.

Scholarly blogs and their place in the research nexus - Crossref

If you are reading this blog on our website, you may have noticed that alongside each post we now list a Crossref DOI link, which was not the case a few months ago (though we have retroactively added DOIs to all older posts too). You can find the persistent link for this post right above this paragraph. Go on, click on it, we’ll wait.

You are Crossref - Crossref

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.

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.

Sci-Hub : {title} [{doi}]

shortDOI Service

The shortDOI Service is a shortening service that creates aliases for existing DOI® names, of the form 10/abcde. These aliases are short whereas DOI names are sometimes very long strings.

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.

Registering DataCite DOIs for Awards

Using DataCite DOIs for awards This page provides general guidance on registering DataCite DOIs for awards, grants, and comparable entities. DataCite DOIs are suitable for a wide range of research outputs and resources, including awards and grants. Registering DOIs for awards and grants: Enables res...

[Proposal] AT-URI for cross-service records

tl;dr non-AtprotoPersonalDataServer services might host records, let’s introduce following AT-URI syntax with optional service field to reference those non-PDS hosted data. at://tangled_knot@did:plc:user/... ^^^^^^^^^^^^ ^^^ | path can be any format | (NSID/rkey prefered, but not enforced) service name (default to "atproto_pds" when omited) In this proposal, I’m going to explain why we need cross-service reco...

How Grobid uses Crossref metadata to enrich bibliographic information - Crossref

Crossref members register around 37,000 records daily. All this metadata is openly shared with the global scholarly community through our free APIs. We receive over two billion calls to our API each month, signalling its use by hundreds of tools and services worldwide, supporting the discovery and assessment of scholarly metadata. As part of a new series in our blog, we will spotlight the diversity of tools and integrations that rely on Crossref metadata to serve the scholarly community. In this initial post, we chat to Luca Foppiano, the developer and maintainer of Grobid1, to learn about how Grobid uses Crossref metadata to improve the extraction and enrichment of bibliographic information from scholarly PDFs.

Schema 5.5 now available: adding CRediT, new record types for blogs and posters, and more - Crossref

Research is rarely limited to a single contributor performing a single role. Behind every research output are people contributing in various ways: software development, data analyses, methodology design, and much more. Often, the same person contributes in several of these ways. Until now, Crossref metadata could only capture part of that picture, but this is changing with Schema 5.5.

How Grobid uses Crossref metadata to enrich bibliographic information - Crossref | Luca F.

Early this year Crossref and I talked about how Grobid users rely on their API, and the numbers are big: in Q1 2026 alone, GROBID clients sent more than 100 million requests to consolidate extracted bibliographic data. Crossref offers three tiers: public (anonymous, low throughput), polite (identified by email, higher throughput) and Metadata Plus (paid, for large-scale use). GROBID’s integration dated back to 2014, and it turned out it needed an update. Since 0.9.0, GROBID lets you join the polite pool or use your Metadata Plus key. Consolidation is more reliable, and it’s fairer to a shared, open service. Luis M. Montilla and I had a conversation about how Grobid uses the Crossref metadata to enrich references extracted from PDFs, that eventually become a blog post: 🔗 https://lnkd.in/egxWRAV6 And there’s a next step: for really large volumes, a local service may be more suitable than the API. On 22 October at 15:15 UTC, I’ll present biblio-glutton in the Community Highlights session of the Crossref Annual Meeting. Biblio-glutton is a local metadata search service for scholary publications using the Crossref public dump and data from other services: Pubmed, HAL, OpenAlex, etc... I built with Patrice Lopez in 2016. It provides provide lookup, structured, and unstructured metadata search. The owners of the Crossref Metadata Plus subscription can keep it in sync with regular background jobs so the data is kept up-to-date. 🔗 Annual Meeting (online, free; register for Session 2): https://lnkd.in/ew699KCw 🔗 biblio-glutton: https://lnkd.in/eR6KvmJM

NLnet; Plaudit

Plaudit is open source software that collects endorsements of scholarly content from the academic community, and leverages those to aid the discovery and rapid dissemination of scientific knowledge. Endorsements are made available as open data. The NGI Search & Discovery Grant will be used to simplify the re-use of endorsement data by third parties by exposing them through web standards.