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What does doi mean in the literature?
The doi (digital object identifier -doi) of a document is used to identify the content object in the digital environment, that is, the code used to identify the document. DOI can be used to reveal some information of documents, including inputting DOI from websites to query documents.

DOI (Digital Object Identifier-) is a mechanism to identify digital resources, which is equivalent to the digital ID card of documents, ensuring the accurate extraction of documents under the network environment and effectively avoiding duplication.

Extended data

The DOI of the literature has the following characteristics:

1, uniqueness

As an identifier of a digital object, the DOI identifier is equivalent to a person's ID card and is unique to the recognized digital object. This feature ensures the accurate extraction of digitized objects in the network environment and effectively avoids duplication.

Step 2 stick to it

Once the DOI identifier of a digitized object is generated, it will never change, nor will it change with the change of the copyright owner or storage address of the digitized object it identifies.

Step 3 live in harmony

The compatibility of DOI identifiers lies in that the suffix of DOI number can contain any existing identifiers, such as ISBN, ISSN, ISTC, PII, etc.

4. Interoperability

The processing system of DOI can be consistent with different computer operating systems on the Internet when processing the same data, and can be compatible with technical systems in different periods.

5. Dynamic update

DOI system can update its metadata, application and service functions quickly and simply. The main purpose of DOI is to uniquely identify all kinds of information resource entities under the network environment, including all kinds of physical and digital resources.

Baidu encyclopedia -DOI