Preprints have become an important tool for rapidly communicating and iterating on research outputs. There is now a range of preprint servers, some subject-specific, some based on a particular geographical area, and others linked to publishers or individual journals in addition to generalist platforms. In 2016 the Crossref schema started to support preprints and since then the number of metadata records has grown to around 16,000 new preprint DOIs per month.
This is a companion discussion topic for the original entry at https://0-www-crossref-org.libus.csd.mu.edu/blog/better-preprint-metadata-through-community-participation/