Q5188229

Crossref (formerly styled CrossRef) is a nonprofit open digital infrastructure organization for the global scholarly research community. It is the largest digital object identifier (DOI) Registration Agency of the International DOI Foundation. It has 23,000 members from 164 countries representing publishers, libraries, research institutions, and funders and was launched in early 2000 as a cooperative effort among publishers to enable persistent cross-platform citation linking in online academic journals. As of July 2023, Crossref identifies and connects 150 million records of metadata about research objects made openly available for reuse without restriction. They facilitate an average of 1.1 billion DOI resolutions (clicks of a DOI link) every month, and they see 1 billion queries of the metadata every month.

== Background == Crossref is a nonprofit association of approximately 19,000 voting members made up of 6,000 societies and publishers, including both commercial and nonprofit organizations, 6,500 academic and research institutions, research funders, museums, repositories, government agencies and NGOs. Crossref includes members with varied business models, including those with both open access and subscription policies. Crossref does not provide a database of fulltext scientific content. Rather, it facilitates the links among distributed content hosted at other sites through the use of open metadata and persistent identifiers.