CROSSREF

Crossref is registered as Publishers International Linking Association, Inc. (PILA) in New York, USA. You can view our certificate of incorporation and by laws. We have tax exempt status in the US as a 501(c)6…... We are a not-for-profit organization, registered in the United States of America as a 501(c)6 (a "trade association"). We are sustained by annual membership fees that are tiered according to organizational size. We also charge…... 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 22,000 members in 160 countries, we drive metadata exchange and support nearly 2 billion monthly API queries, facilitating global research communication, for the benefit of society.