DataCite

Description: DataCite is a global non-profit organization that provides persistent identifiers (DOIs) for research data and other scholarly outputs, helping to improve the discoverability, accessibility, and reuse of research. It collaborates with institutions, researchers, and data centers to make data a first-class research output through the use of metadata and persistent identifiers.
Example for PID: https://doi.org/10.5438/1dgk-1m22
Year started: 2009
Register / Membership Info: https://datacite.org/become-a-member/
Alignment with POSI Principles: https://doi.org/10.5438/vy7h-g464