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App. Res. of Comp. Accepted Paper
Vol. 42, 2025 No. 11

Reputation-based blockchain shard reorganization model

Zhai Shepinga,b
Zhang Weixinga
Wei Jiea
Yang Ruia
a. School of Computer Science & Technology, b. Shaanxi Key Laboratory of Network Data Analysis & Intelligent Processing, Xi'an University of Posts & Telecommunications, Xi'an 710121, China
DOI: 10.19734/j.issn.1001-3695.2025.04.0109

Abstract

Currently, Bitcoin and other mainstream cryptocurrencies face significant scalability challenges due to their single-shard blockchain architecture. To address this limitation, sharding has emerged as a promising solution for improving blockchain scalability. However, it also introduces a range of new technical and security challenges. Existing sharding approaches often overlook the effects of disparities in reputation, communication latency, and node distribution across shards, which can result in performance imbalance and potential security vulnerabilities. Moreover, full-scale shard reorganization entails substantial computational and temporal overhead, thereby reducing overall system efficiency. To tackle these issues, this paper proposes a reputation-driven shard reorganization model for blockchain systems. The model employs a constraint-based optimization algorithm to allocate nodes with varying trust levels to appropriate shards, thereby achieving balanced shard reputations and enhancing overall reliability. Theoretical analysis and experimental evaluations demonstrate that, compared with conventional sharding methods, the proposed model significantly improves both throughput and latency performance while reducing the shard failure rate. Furthermore, the model enables dynamic node load balancing, mitigates the risks of node centralization and collusion attacks, and ensures robust dynamic security for the blockchain system.

Foundation Support

国家自然科学基金资助项目(61373116)
工业和信息化部通信软科学(2018-R-26)
陕西省重点研发计划资助项目(2022GY-038)
国家级大学生创新创业计划训练项目(202411664067)
陕西省大学生创新创业计划训练项目(S202411664140)
陕西省教育厅科学研究计划资金助项目(18JK0697)
陕西省社会科学基金资助项目(2016N008)
西安市社会科学规划基金资助项目(17X63)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2025.04.0109
Publish at: Application Research of Computers Accepted Paper, Vol. 42, 2025 No. 11

Publish History

[2025-07-11] Accepted Paper

Cite This Article

翟社平, 张卫星, 魏杰, 等. 一种信誉机制的区块链分片重组模型 [J]. 计算机应用研究, 2025, 42 (11). (2025-07-24). https://doi.org/10.19734/j.issn.1001-3695.2025.04.0109. (Zhai Sheping, Zhang Weixing, Wei Jie, et al. Reputation-based blockchain shard reorganization model [J]. Application Research of Computers, 2025, 42 (11). (2025-07-24). https://doi.org/10.19734/j.issn.1001-3695.2025.04.0109. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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