What is DOI (Digital object identifier)?

In Citation tracking by Xu CuiLeave a Comment

BizGenius’ citation tracking service provides DOI for each scientific publication (when available). But what is DOI?

DOI stands for Digital Object Identifier. A snippet from wikipedia explains it well:

“DOI is a persistent identifier or handle used to uniquely identify objects, standardized by the International Organization for Standardization (ISO). An implementation of the Handle System, DOIs are in wide use mainly to identify academic, professional, and government information, such as journal articles …”

DOI always starts with “10.”. For example, a paper by myself, (Cui et al Ready…Go: Amplitude of the fMRI Signal Encodes Expectation of Cue Arrival Time, PLoS Biology, 2009), has a DOI value: 10.1371/journal.pbio.1000167

How can I use DOI?

  1. If you know a DOI, you can find the paper quickly. You may enter the DOI in the page https://www.doi.org, or simply go to https://doi.org/[DOI] directly to the paper’s page.
  2. Since DOI is unique for each publication, you may use it as a key to identify (and remove) duplicates.
  3. You may also use it as a key or index in your database.

(Please note, not all publications have DOI. For example, some thesis do not have DOI. )

Similar to DOI, in the field of biology and medicine, PubMed ID is very useful in quickly finding a paper and identify duplicates. For example, my paper mentioned above has a PubMed ID 19652698. BizGenius’ citation tracking service provides PubMed ID too.

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