Q. What is a Digital Object Identifier (DOI)?

What is a DOI (Digital Object Identifier)?

A DOI or Digital Object Identifier is a unique alphanumeric identifier applied to a specific piece of intellectual property, presented in an online environment.  For example a book, a scientific paper, a song, an image, an E-Thesis or a dataset can all be identified by a DOI. Unlike a conventional web address, or URL, a DOI specifies content rather than the location of an online object.  In this way a DOI is a "persistent" identifier, and remains associated with the object irrespective of changes in the object's web address.

DOIs and LJMU Services

DOIs will be issued for E-theses included in the LJMU E-Theses Collection automatically at the point of deposit by the repository team.

DOIs will be issued for dataset(s) deposited to the Research Data Repository which have not already been published with a DOI elsewhere.

Journal articles within our Open Journals Service will be issued with DOIs at the point of publication.