In short: A DOI (Digital Object Identifier) is a permanent, unique code that acts as the stable web link to a research article. Unlike an ordinary URL, a DOI keeps working even if a journal moves its website — which is why researchers cite the DOI, and why every article should have one.
What is a DOI?
A Digital Object Identifier (DOI) is a short string of characters that permanently identifies a specific piece of scholarly content — most often a journal article, but also datasets, book chapters and preprints. It is registered with a DOI agency (for scholarly articles, that agency is Crossref) and, once assigned, it never changes and is never reused.
You resolve a DOI by putting it after https://doi.org/. For example, https://doi.org/10.52338/example.2026.1 will always redirect to wherever that article currently lives.
Anatomy of a DOI
Every DOI has two parts separated by a slash:
- Prefix — identifies the registrant (the publisher). It always begins with
10.followed by a number. Directive Publications' prefix is 10.52338. - Suffix — identifies the specific item, chosen by the publisher. It can encode the journal, year and article number.
So a DOI like 10.52338/jocp.2026.5782 reads as: registrant 10.52338 (Directive Publications), item jocp.2026.5782.
Why DOIs matter
1. Permanence
Websites change. Journals migrate platforms, restructure URLs, or rebrand. A raw web link can break — a phenomenon called "link rot." A DOI is designed to outlive those changes: when a URL moves, the publisher updates the DOI record, and the DOI keeps resolving. This is why a DOI, not a web address, is the correct way to cite an article.
2. Reliable citation
Because a DOI is unique and permanent, it lets other researchers find, verify and cite your work unambiguously. Most citation styles now expect a DOI where one exists (see our guide to preparing your manuscript).
3. Discoverability and metadata
Registering a DOI means depositing structured metadata — title, authors, ORCID iDs, publication date, licence, references — with Crossref. That metadata feeds discovery services, reference managers, and scholarly databases, making your article easier to find and to cite correctly.
4. Interlinking the literature
DOIs let articles link to one another through their references, building the connected web of citations that underpins scholarly search and metrics.
How a DOI works, step by step
- On acceptance, the publisher assigns a DOI to the article.
- The publisher deposits the article's metadata and its current URL with Crossref.
- Crossref registers the DOI in the global DOI resolution system.
- Anyone who follows
https://doi.org/[DOI]is redirected to the article's landing page. - If the URL ever changes, the publisher updates the record and the DOI continues to resolve.
DOIs at Directive Publications
Every article we publish is assigned a Crossref-registered DOI under our prefix 10.52338, and each DOI resolves to the article's full-text landing page. We deposit complete metadata — including author names, ORCID iDs where provided, publication date and the CC BY 4.0 licence — so the work is discoverable and correctly attributed. You can read more about how we keep the scholarly record stable on our digital preservation page.
How to use a DOI correctly
- When citing: include the full DOI as a link (e.g.
https://doi.org/10.52338/…) rather than a journal web address. - When sharing: share the DOI link — it will always reach the article.
- When checking a paper: if a "DOI" does not resolve at doi.org, treat it with caution; a genuine registered DOI always resolves.
Key takeaways
- A DOI is a permanent, unique identifier — the stable link to an article.
- It has a publisher prefix (Directive Publications = 10.52338) and an item suffix.
- DOIs prevent link rot, enable reliable citation, and power discovery through metadata.
- Every Directive Publications article receives a Crossref-registered DOI resolving to its landing page.