Anomaly Detection in Blockchain: A Systematic Review of Trends, Challenges, and Future Directions

Ruslan Shevchuk*, Vasyl Martsenyuk, Bogdan Adamyk, Vladlena Benson, Andriy Melnyk

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Blockchain technology’s increasing adoption across diverse sectors necessitates robust security measures to mitigate rising fraudulent activities. This paper presents a comprehensive bibliometric analysis of anomaly detection research in blockchain networks from 2017 to 2024, conducted under the PRISMA paradigm. Using CiteSpace 6.4.R1, we systematically map the knowledge domain based on 363 WoSCC-indexed articles. The analysis encompasses collaboration networks, co-citation patterns, citation bursts, and keyword trends to identify emerging research directions, influential contributors, and persistent challenges. The study reveals geographical concentrations of research activity, key institutional players, the evolution of theoretical frameworks, and shifts from basic security mechanisms to sophisticated machine learning and graph neural network approaches. This research summarizes the state of the field and highlights future directions essential for blockchain security.
Original languageEnglish
Article number8330
Number of pages28
JournalApplied Sciences
Volume15
Issue number15
DOIs
Publication statusPublished - 26 Jul 2025

Bibliographical note

Copyright © 2025 by the authors. Licensee MDPI, Basel, Switzerland.
This article is an open access article distributed under the terms and
conditions of the Creative Commons Attribution (CC BY) license
(https://creativecommons.org/licenses/by/4.0/).

Keywords

  • Blockchain
  • Anomaly Detection
  • domaine map analysis
  • scientometric database
  • Trends
  • Knowledge graph
  • CiteSpace

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