================================ Conventions for Structuring DOIs ================================ This document outlines the DOI patterns currently in use at Texas A&M University Libraries. It also identifies patterns that are reserved and should not be reused. -------------------------------------------------------- DOIs for Open Journal Systems (OJS) Articles and Issues -------------------------------------------------------- OJS generates DOIs using its built-in **Automatic DOI Assignment** feature. Typical formats include: - **Randomized pattern (current default):** Example: ``10.21423/jrs-v04n04pi`` These DOIs use the journal’s slug plus a randomized suffix. - **Semantic pattern (legacy):** Example: ``10.21423/bovine-vol1977no12p30-34`` Some older OJS titles follow this more descriptive format. **Important:** Do not create DOIs that begin with a current OJS journal slug, since those are reserved. A list of current slugs is maintained in the `OJS Titles document list `_. ---------------------------------- DOIs for OAKTrust Repository Items ---------------------------------- OAKTrust DOIs follow the repository’s **handle-based pattern**. For example: - DOI: ``10.21423/oak/1969.1/197075`` - Corresponding handle: `https://hdl.handle.net/1969.1/197075 `_ This convention ensures a consistent mapping between DOIs and OAKTrust handles. -------------------------- DOIs for Pressbooks Titles -------------------------- Pressbooks DOIs follow a **randomized suffix pattern**. The format uses the ``10.21423/odp.`` prefix, followed by a random string. Each DOI resolves directly to a Pressbooks-hosted publication. - Example DOI: ``https://doi.org/10.21423/odp.vmfn5541`` - Resolves to: `https://odp.library.tamu.edu/odp-guidelines/ `_ In order to ensure uniqueness, the :code:`opd.` namespace is reserved for Pressbooks and other applications in use by the Open Publishing unit.