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 opd. namespace is reserved for Pressbooks and other applications in use by the Open Publishing unit.