An association of scholarly publishers that develops shared infrastructure to support more effective scholarly communications. Crossref's citation-linking network today covers over 72 million journal articles and other content items (books chapters, data, theses, technical reports) from thousands of scholarly and professional publishers.

See more at: https://www.crossref.org/

The Open Funder Registry (OFR)—formerly known as FundRef—is an open, unique registry of persistent identifiers (Funder IDs) for global grant-giving organizations. Maintained by Crossref, it provides a freely downloadable, CC0-licensed RDF database designed to match raw funder names from research acknowledgments with unique, machine-readable identifiers.

See more at: https://www.crossref.org/services/funder-registry/

An International Standard Serial Number is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic. The ISSN National Centres assign ISSN to the publications issued by the publishers located in their own countries through application (https://www.issn.org/). The Public Access Solution will use this to identify publications as part of manuscript submission.