This week I launched Commonmeta , a new scholarly metadata standard described at https://commonmeta.org. Commonmeta is the result of working on conversion tools for scholarly metadata for many years. One conclusion early on was that these conversions are many-to-many, so it becomes much easier to have an internal format that is the intermediate step for these conversions.

Last week the Rogue Scholar science blog archive added export of blog post content in various formats (Markdown, ePub, PDF, JATS XML). This week Rogue Scholar is improving the existing metadata export, and adding metadata export in Schema.org JSON-LD format.

At DataCite, we make metadata for over 50 million DOIs openly available to enable the discovery of research outputs and related resources. This metadata is created by DataCite’s Members and Consortium Organizations according to the DataCite Metadata Schema. When registering a DataCite DOI, repositories submit metadata to improve discoverability and reusability. Today, we are releasing version 4.5 of the DataCite Metadata Schema. Developed by the Metadata Working Group in coordination with DataCite staff, this release includes several changes to help repositories create richer and more accurate metadata. Full details are available in the version update notes within the documentation. In addition to these changes, we’ve refreshed the schema documentation format to make it easier to navigate.

A <strong> PID </strong> or persistent identifier has been in common use in scientific publishing for around 20 years now. It was introduced as a <strong> DOI </strong> (Digital Object Identifier), and the digital object in this case was the journal article. From 2000 onwards, DOIs started appearing for most journal articles, journals having obtained them from a registration agency, CrossRef.