OpenCitations

OpenCitations formally started in 2010 as a one-year project funded by JISC (with a subsequent extension), with David Shotton as director, who at that time was working in the Department of Zoology at the University of Oxford . The project was global in scope, and was designed to change the face of scientific publishing and scholarly communication, since it aimed to publish open bibliographic citation information in RDF and to make citation links as easy to traverse as Web links. The main deliverable of the project, among several outcomes , was the release of an open repository of scholarly citation data described using the SPAR (Semantic Publishing and Referencing) Ontologies , and named the OpenCitations Corpus (OCC) , which was initially populated with the citations from journal articles within the Open Access Subset of PubMed Central . Since the beginning of July 2016, OCC has been ingesting, processing and publishing reference lists of of scholarly papers available in Europe PubMed Central . Additional metadata for these citations are obtained from Crossref and (for authors) ORCID . OpenCitations was awarded of a grant from the Alfred P. Sloan Foundation for The OpenCitations Enhancement Project . The funding was used to improve the hardware and software infrastructure for handling the data and hosting all the services OpenCitations makes available. During this period, OpenCitations has developed a number of citation indexes using the data openly available in third-party bibliographic databases. The first and largest of these is COCI, the OpenCitations Index of Crossref open DOI-to-DOI citations .