Digital Object Identifier (DOI) is a tool to identify digital information (including Internet information). In traditional publications.

These logos make publications effectively managed and easy for readers to find and use. However, once the website address of online documents is changed, there is no way to track digital information. DOI, like the bar code of a publication, is a permanent unique identification number.

With the passage of time, some information about digital objects may change (including the physical location of storage). DOI allows users to directly link to the database abstracts or even the full text of the publishing house, and the identification code can directly guide the publication itself, so that all kinds of academic information from various sources and different physical addresses at home and abroad can be interconnected.

DOI is a management system that can provide quick links for global journals. The whole system is managed by the International DOI Foundation (IDF) on a global scale. With the popularity of DOI, we can use it to evaluate related scientific research, analyze highly cited authors, papers and other related information, and understand the hot influence and trend of academic research in various fields.

Naming method

DOI code consists of prefix and suffix, which are separated by "/",and the prefix is divided into two parts by ".". For example, the following is a typical DOI identifier:

10. 1000/182, where the prefix "10.1000" is determined by the International Digital Object Identification Number Foundation.

Among them, "10" is the only specific code of DOI at present, which is used to distinguish DOI from other systems adopting the same technology; "1000" is the code of the registration institution, which is used to distinguish different registration institutions, in this case, the international DOI foundation.

Refer to the above content: Baidu Encyclopedia-Digital Object Identifier