You have almost certainly clicked a DOI link before, even if you never noticed it. That short string beginning with 10. is the reason a citation still works years after publication, when journal websites have changed, volumes have moved, and old links have broken. For a first-time author, understanding how a DOI is obtained removes a common source of confusion at submission and after publication.
This guide explains the system in plain language: what a DOI is, who is allowed to create one, how a published paper gets one, and what to do when your output is not a journal article at all, such as a dataset, a preprint, or a thesis. It also clears up the mistakes that cost authors time, including paying for something that should be free and confusing a DOI with an ordinary web address.
A DOI, or Digital Object Identifier, is a permanent identifier for a piece of published content. It looks like 10.1234/example.5678: the part before the slash identifies the organisation that registered it, and the part after it identifies the specific item. When you click a DOI link, you are sent through a central directory to the current web address of that item, which is why the link keeps working even if the publisher rebuilds its website.
A DOI is not a mark of quality, and it is not the same as peer review. A predatory outlet can register identifiers, and a careful, honest paper can exist without one. What a DOI does is make an item findable, citable, and trackable: readers can cite it precisely, other papers can link to it, and citation counts can be connected to the right item. Think of it as a permanent address label, not a prize.
For a journal article, the publisher normally registers the DOI, not the author. The publisher is a member of a registration agency, most commonly Crossref for journal articles, conference papers, and books. When the article is published, the publisher sends Crossref the article's metadata — title, authors, publication date, and the web address — and Crossref records the DOI against that metadata. The author usually does nothing except check that the details are correct.
This division of labour matters because it stops authors from creating competing identifiers for the same paper. One article should have one DOI. If an author registered a second identifier for the same version, citations would split between two records and readers would be unsure which one to cite. At Global Academic Publishers, the journal's own DOI registration is still in application, so this guide explains the general system rather than promising a DOI for any particular submission here.
Crossref membership is not limited to commercial publishers. University presses, scholarly societies, and research institutions can also become members and register DOIs for the works they publish, which is why a small society journal can offer the same permanent linking as a large publisher. What matters for an author is not the size of the member organisation but whether the DOI resolves correctly to the published item.
You may notice that some DOI suffixes look meaningful, containing a journal abbreviation or a year, while others look like random strings. Both forms are valid. Meaningful suffixes are easier for humans to recognise, while opaque suffixes avoid problems when a journal changes its name or a title is corrected. Neither form affects how the DOI works, so do not judge an identifier by how readable its second half looks.
In practice, getting a DOI for a journal article means publishing in a journal that registers DOIs, then checking the published article page. After publication, the DOI usually appears on the article page itself, near the title or in the citation information, and in the PDF. Copy it exactly as shown, including the 10. prefix, and use it whenever you cite the paper, list it on your CV, or add it to your institutional profile.
If your article is published but no DOI appears, ask the journal's editorial office rather than registering one yourself. The journal may register identifiers in batches, or the article may be published by a journal that does not use DOIs at all. Some respected journals, especially small or society journals, still publish without DOIs, and that alone does not make a journal illegitimate. Before submitting anywhere, verify the journal's identity using the checks in our guide on how to avoid predatory journals, because a DOI on a website is never a substitute for checking who the publisher really is.
Not every research output is a journal article, and the identifier system covers those too. If you share a dataset, a general repository such as Zenodo can mint a DOI for it through DataCite, the registration agency for research data. You upload the files, describe them with title, authors, and licence, and the repository issues a DOI that others can cite. The same route works for conference posters, software, and reports that you want to make citable.
Preprints work differently depending on the server. Many preprint servers assign a DOI to the posted version automatically, and that DOI identifies the preprint, not the later journal article, which will normally receive its own DOI from the publisher. Theses are usually handled by the degree-awarding institution: many university repositories register a DOI or another persistent identifier for the deposited thesis. In each case the principle is the same — deposit the item in a recognised repository or with a recognised publisher, and let that organisation register the identifier. For the wider picture of keeping research outputs organised, see our guide on research data management.
A DOI is cited as a link, usually in the form https://doi.org/10.1234/example.5678. In a reference list, include the DOI at the end of the reference, exactly as the publisher shows it, and follow the reference style your journal requires. Do not shorten a DOI, remove characters from it, or replace it with the article's web address, because the whole point of the identifier is that it stays stable while addresses change.
Anyone can check a DOI by pasting the link into a browser. A working DOI resolves to the item's current landing page, and the page should match the citation: the same title, the same authors, and the same publication details. If a DOI does not resolve, check for a typing error first, then check the citation against the publisher's site. A DOI that never resolves, or that resolves to an unrelated page, is a warning sign worth investigating before you cite the item or submit to the journal concerned.
Reference managers can store DOIs and use them to fetch citation details, which reduces typing errors, but always check what the manager imported against the article page. Automated imports occasionally attach the wrong DOI to a similarly titled paper, and an error copied into your reference list will be repeated by anyone who cites your work.
Authors often confuse a DOI with three other identifiers, so it helps to separate them. A URL is simply a web address, and it breaks when a site is reorganised. An ISBN identifies a book edition, and an ISSN identifies a journal title as a serial, not an individual article. A DOI identifies one specific digital item and is backed by a directory that keeps its link current. The table below summarises the differences.
| Identifier | What it identifies | Example of use |
|---|---|---|
| DOI | One digital item, such as an article or dataset | Citing a journal article permanently |
| URL | A web address at one moment in time | Linking to a page that may move |
| ISBN | One edition of a book | Ordering or cataloguing a book |
| ISSN | A journal or serial title | Identifying the journal itself |
| ORCID iD | A researcher, not a document | Connecting an author to their works |
The most expensive mistake is paying a stranger to obtain a DOI for you. Authors should never need to buy a DOI for a journal article: the publisher registers it as part of publication, and repositories that mint DOIs for datasets and preprints generally do so free of charge. Any service that charges an author a fee simply to create a DOI deserves careful scrutiny, and a demand for payment before peer review is a red flag in any case.
Two quieter mistakes are also common. The first is citing a DOI from memory or from a copied reference without checking it, which spreads broken or wrong links through the literature. The second is treating a DOI as proof of quality: a DOI tells you an item is registered and citable, not that it was rigorously reviewed. Judge a paper by its journal, its methods, and its evidence, and use the DOI for what it is for — making sure that the paper you mean is the paper your reader reaches.
Finally, remember that a DOI does not guarantee free access. It guarantees that the link resolves to the article's landing page, but that page may still sit behind a paywall unless the article is open access. If you need a version everyone can read, look for an open access copy in a repository and cite the published version's DOI alongside it, following the journal's policy on sharing.
A DOI is designed to survive changes to the paper it identifies. When a journal publishes a correction, the DOI normally continues to point to the article, and the correction notice is linked from the same landing page, so readers reach the current, corrected version rather than a frozen original. That persistence is deliberate: the scholarly record is corrected in public, not rewritten silently, and the identifier is what holds the versions together.
Retraction works the same way, which surprises many new authors. A retracted paper keeps its DOI, but its landing page is clearly marked as retracted, and the retraction notice explains why. The DOI is not deleted, because deleting it would erase the trail: other papers may have cited it, and readers need to be able to find the retraction rather than hitting a dead link. If you ever cite a paper, check its current status, not only its original publication details.
Preprints add a second identifier to keep straight. A preprint posted on a server usually has its own DOI, and the later journal article receives a different DOI from the publisher. Cite the version you actually used, and prefer the published version when both exist, because it is the peer-reviewed record. Most preprint servers link the two versions, so a reader starting from either identifier can find the other.
As an author, your job after publication is small but worth doing. Check that the DOI on the article page resolves correctly, add it to your CV and institutional profile exactly as shown, and tell the journal if it does not resolve. A broken or mistyped DOI in your own publication list sends readers nowhere, and it is far easier to fix in the week of publication than years later.
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No. The publisher normally registers the DOI through Crossref when the article is published. The author's job is to check that the details are correct and then cite the DOI exactly as shown.
No. A DOI only shows that an item is registered and citable. Peer review is a separate process, and a DOI alone never proves that a paper was reviewed or that it is reliable.
Yes. Deposit the dataset in a recognised repository such as Zenodo, which mints a DOI through DataCite. Describe the files clearly, choose a licence, and cite the DOI in your paper.
Check for typing errors first, then compare the citation with the publisher's article page. If the DOI still does not resolve, contact the publisher, and be cautious about citing an item you cannot verify.
No. A web address can break when a site is reorganised. A DOI is a permanent identifier that is redirected through a central directory to the item's current address.
No. Most large publishers do, but some small or society journals publish without DOIs. The absence of a DOI alone does not make a journal illegitimate, and its presence alone does not make one trustworthy.