In the scholarly communications environment, the evolution of a journal article can be traced by the relationships it has with its preprints. Those preprint–journal article relationships are an important component of the research nexus.

Just over a year ago, Crossref announced that our board had adopted the Principles of Open Scholarly Infrastructure (POSI). It was a well-timed announcement, as 2021 yet again showed just how dangerous it is for us to assume that the infrastructure systems we depend on for scholarly research will not disappear altogether or adopt a radically different focus. We adopted POSI to ensure that Crossref would not meet the same fate.

TL;DR On November 11th 2020, the Crossref Board voted to adopt the “Principles of Open Scholarly Infrastructure” (POSI). POSI is a list of sixteen commitments that will now guide the board, staff, and Crossref’s development as an organisation into the future. It is an important public statement to make in Crossref’s twentieth anniversary year.