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With the development of decentralized consensus protocols, permissionless blockchains have been envisioned as a promising enabler for the general-purpose transaction-driven, autonomous systems. However, most of the prevalent blockchain…

Computer Science and Game Theory · Computer Science 2018-11-19 Zhengwei Ni , Wenbo Wang , Dong In Kim , Ping Wang , Dusit Niyato

Sharding has emerged as a critical solution to address the scalability challenges faced by blockchain networks, enabling them to achieve higher transaction throughput, reduced latency, and optimized resource usage. This paper investigates…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-25 Ziwei Wang , Cong Wu , Paolo Tasca

Blockchain Sharding is a blockchain performance enhancement approach. By splitting a blockchain into several parallel-run committees (shards), it helps increase transaction throughput, reduce computational resources required, and increase…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-02-06 Yibin Xu , Jianhua Shao , Yangyu Huang , Tijs Slaats , Boris Düdder

Blockchain technologies are one possible avenue for increasing the resilience of the Smart Grid, by decentralizing the monitoring and control of system-level objectives such as voltage stability protection. They furthermore offer benefits…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-06-29 Kimia Honari , Xiaotian Zhou , Sara Rouhani , Scott Dick , Hao Liang , James Miller Li , James Miller

Sharding enhances blockchain scalability by partitioning nodes into multiple groups for concurrent transaction processing. Configuring a large number of small shards usually helps improve transaction concurrency, but it also increases the…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-23 Mingzhe Li , You Lin , Jin Zhang

Improving transaction throughput is one of the main challenges in decentralized payment systems. Attempts to improve transaction throughput in cryptocurrencies are usually a trade-off between throughput and security or introduce a central…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-16 Rowel Gündlach , Jaap-Henk Hoepman , Remco van der Hofstad , Tommy Koens , Stijn Meijer

The scalability problem has been one of the most significant barriers limiting the adoption of blockchains. Blockchain sharding is a promising approach to this problem. However, the sharding mechanism introduces a significant number of…

Databases · Computer Science 2022-12-23 Yuanzhe Zhang , Shirui Pan , Jiangshan Yu

Blockchain networks offer decentralization, transparency, and immutability for managing critical data but encounter scalability problems as the number of network members and transaction issuers grows. Sharding is considered a promising…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-03-09 Yongrae Jo , Chanik Park

Blockchain technology has been gaining great interest from a variety of sectors, including healthcare, supply chain and cryptocurrencies. However, Blockchain suffers from its limited ability to scale (i.e. low throughput and high latency).…

Cryptography and Security · Computer Science 2021-08-13 Abdelatif Hafid , Abdelhakim Senhaji Hafid , Adil Senhaji

The development of blockchain technologies has enabled the trustless execution of so-called smart contracts, i.e. programs that regulate the exchange of assets (e.g., cryptocurrency) between users. In a decentralized blockchain, the state…

Programming Languages · Computer Science 2020-04-28 Massimo Bartoletti , Letterio Galletta , Maurizio Murgia

To enable high-performance and scalable blockchains, we need to step away from traditional consensus-based fully-replicated designs. One direction is to explore the usage of sharding in which we partition the managed dataset over many…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-08-12 Jelle Hellings , Daniel P. Hughes , Joshua Primero , Mohammad Sadoghi

Since 2016, sharding has become an auspicious solution to tackle the scalability issue in legacy blockchain systems. Despite its potential to strongly boost the blockchain throughput, sharding comes with its own security issues. To ease the…

Cryptography and Security · Computer Science 2024-06-05 Truc Nguyen , My T. Thai

Although blockchains have become widely popular for their use in cryptocurrencies, they are now becoming pervasive as more traditional applications adopt blockchain to ensure data security. Despite being a secured network, blockchains have…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-10 Faisal Haque Bappy , Tariqul Islam , Tarannum Shaila Zaman , Md Sajidul Islam Sajid , Mir Mehedi Ahsan Pritom

Distributed ledger technology such as blockchain is considered essential for supporting large numbers of micro-transactions in the Machine Economy, which is envisioned to involve billions of connected heterogeneous and decentralized…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-05-27 Christoffer Fink , Olov Schelén , Ulf Bodin

Traditional NoSQL systems scale by sharding data across multiple servers and by performing each operation on a small number of servers. Because transactions on multiple keys necessarily require coordination across multiple servers, NoSQL…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-09-28 Robert Escriva , Bernard Wong , Emin Gün Sirer

Sharding scales throughput by splitting blockchain nodes into parallel groups. However, different shards' independent and random scheduling for cross-shard transactions results in numerous conflicts and aborts, since cross-shard…

Cryptography and Security · Computer Science 2023-04-19 Zicong Hong , Song Guo , Enyuan Zhou , Jianting Zhang , Wuhui Chen , Jinwen Liang , Jie Zhang , Albert Zomaya

Despite the success in various scenarios, blockchain systems, especially EVM-compatible ones that serially execute transactions, still face the significant challenge of limited throughput. Concurrent transaction execution is a promising…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-11-18 Haoran Lin , Yajin Zhou , Lei Wu

Traditional public blockchain systems typically had very limited transaction throughput because of the bottleneck of the consensus protocol itself. With recent advances in consensus technology, the performance limit has been greatly lifted,…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-02-11 Péter Garamvölgyi , Yuxi Liu , Dong Zhou , Fan Long , Ming Wu

Due to its security, transparency, and flexibility in verifying virtual assets, blockchain has been identified as one of the key technologies for Metaverse. Unfortunately, blockchain-based Metaverse faces serious challenges such as massive…

Cryptography and Security · Computer Science 2023-05-02 Cong T. Nguyen , Dinh Thai Hoang , Diep N. Nguyen , Yong Xiao , Dusit Niyato , Eryk Dutkiewicz

Sharding has emerged as a critical technique for enhancing blockchain system scalability. However, existing sharding approaches face unique challenges when applied to Directed Acyclic Graph (DAG)-based protocols that integrate expressive…

Databases · Computer Science 2025-08-25 Junchao Chen , Alberto Sonnino , Lefteris Kokoris-Kogias , Mohammad Sadoghi