A DOI (Digital Object Identifier) is a persistent ID for a digital object—usually an article, sometimes a dataset, book chapter, or preprint. It typically looks like 10.xxxx/….. and resolves via the https://doi.org/ prefix. Even if a journal site moves, the registration agency (e.g. Crossref) can keep redirecting to a current URL. That is why citing a DOI when possible reduces link rot on CVs and reference lists.
A DOI is not a peer-review or indexing guarantee; it is only an identifier. Predatory journals can obtain DOIs too. Read quality from journal policy, review practice, and index records—not from the DOI string. An article may have both a journal DOI and a preprint DOI; know which you are using in which context.
ORCID and publisher systems can embed author IDs in DOI metadata, improving citation and profile matching. In Turkish dossiers, a DOI makes an output easier to verify. ISSN identifies the serial; DOI identifies the object—they are not interchangeable.
Practically: store the DOI after acceptance, prefer DOIs in citations, and report broken resolvers to the publisher. The preprint entry covers early DOI use; indexing covers discovery. Minting DOIs for datasets supports open science and reproducibility.
If a publisher page is down, try resolving via doi.org first—the registration agency may already point to a new location. Pulling records by DOI in Zotero or BibTeX also reduces bibliography typos.
Listing both print and e-ISSN in a dossier clears confusion for journals with renamed or translated titles. In metric lookups, trying the same ISSN with and without hyphens can recover a missed match.