The document outlines the objectives, design, and current status of the Published Data Library (PDL) system. The objectives are to deliver meaningful and discoverable data collections that are fixed, usable without additional context, and assured to be available long-term. The design assigns DOIs to datasets through DataCite, with DOIs resolving to HTML landing pages containing metadata and links to usage metadata and data. Currently, descriptive pages and an 8-dataset DOI catalogue are live, along with some DOI landing pages containing human and machine-readable metadata in HTML and RDFa formats. Future work includes developing a database backend and linking to other data repositories.