BIBLIOMETRIC OF BLOCKCHAIN PUBLICATIONS IN SCIENCE CITATION INDEX EXPANDED FROM 1991 TO 2022

The aim of the paper is to perform a bibliometric study on blockchain which is an emerging technology presenting several advantages reinforcing security, privacy and immutability on a Peer-To-Peer network, inhibiting a central authority like a server. The studied articles are collected from the Clarivate Analytics Web of Science Core Collection database (data updated on 29 June 2023). A total of 11,190 blockchain documents were searched out in the SCI-EXPANDED from 1991 to 2022. The articles are analysed using characteristics of document types. The most used type is articles and reviews, relevant review articles, average numbers of citations per publication by year. The most cited publications are those published in 1991. The most cited Web of Science categories are “information systems computer science” and “electrical and electronic engineering”. The top most productive journals are IEEE journals and the top productive countries are China, USA and India. The top productive institutions are Beijing University of Posts and Telecommunications, Chinese Academy of Sciences, Xidian University. The top ten most frequently cited blockchain articles and the twenty most frequently used author keywords are exhibited to deduce trends of research in blockchain field. The contribution to the literature is reinforced by the given summary about the blockchain technology since 1991 and its developments, its actual shape and its trends toward the future.