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Scholarly Publishing & Communication: Persistent IDs and URLs

Locate current resources on all aspects of scholarly publishing and communication across all subject areas.

Persistent Identifiers @ Dartmouth

What are persistent identifiers and links and why are they important?

A persistent identifier is a permanent reference to a digital resource. Persistent identifiers and links have a unique number (the former) or a unique url (the latter) that allows users to locate the resource over time even when its location changes. Web addresses fail and change over time, and persistent identifiers provide us with continued access to resources that are cited anywhere from websites to academic publications. 


Tools that support stable access and citation


1. DOIs for publications and datasets

DOIs are persistent identifiers that allow your completed datasets and other types of research outputs to be cited in a consistent manner.  Correct attribution is much more likely when DOIs are part of a citation. Persistent identifiers ensure access to the material no matter where the content is hosted, throughout changes in the hosting web site as long as the owner updates the hosting site information. The Dartmouth Library has an institutional membership with DataCite that makes it easy to create and register DOIs using DataCite's metadata structure. Contact if you are interested in assigning DOIs to your publication or datasets.

2. ARKs (Archival Resource Key)

ARK is a type of persistent identifier for all kinds of content.  ARKs are particularly useful for Digital Humanities projects.  The Dartmouth Library has an institutional license with CDL's EZID to assign sponsored accounts for particular projects that would benefit from persistent identifers.  Contact if you are interested in having a sponsored account to assign ARKs to your materials.

3. is a service that helps prevent link rot. Use it to preserve the online sources you cite and to make those records accessible to your readers.


You may create links to your own or others' work as it appears online. Because links capture a snapshot in time, each one is unique, even if different individuals create their own links for the same document. The important point to remember is that any link you create will archive whatever you're linking to at the moment in time when you examine it, and you may share the link you create in your citations (or choose to keep it private). links are public by default.

Become a Dartmouth user!

Dartmouth is a institution, and affiliating your account with Dartmouth with provide you with the ability to create an unlimited number of links. Contact The Scholarly Communication, Copyright, and Publishing Program ( your Library’s Perma Registrar) at to get started.

See the Perma User Guide and FAQ.

4. ORCID: author disambiguation

A persistent digital identifier that distinguishes you from every other researcher and, through integration in key research workflows such as manuscript and grant submission, supports automated linkages between you and your professional activities ensuring that your work is recognized. ORCID is a non-profit organization run by researchers, scholars, and member institutions.  Dartmouth is an ORCID member and encourages authors to utilize this tool. Contact if you would like help creating your ORCID.