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Bitcoin is the first successful decentralized global digital cash system. Its mining process requires intense computational resources, therefore its usefulness remains a disputable topic. We aim to solve three problems with Bitcoin and…

Cryptography and Security · Computer Science 2016-08-25 Alexander Chepurnoy , Mario Larangeira , Alexander Ojiganov

This paper presents a fully coupled blockchain-assisted federated learning architecture that effectively eliminates single points of failure by decentralizing both the training and aggregation tasks across all participants. Our proposed…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-10-21 Huong Nguyen , Tri Nguyen , Lauri Lovén , Susanna Pirttikangas

Diffusion-based generation is increasingly powering production content pipelines; however, deploying these models at scale remains a significant challenge. Model weights frequently exceed the memory capacity of commodity GPUs, while the…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-26 Hantian Zha , Teng Ma , Yang Yong , Haiwen Fu , Ruiyang Ma , Wei Gao , Ruihao Gong , Xianglong Liu , Wei Wang , Yunpeng Chai

Payment systems are a critical component of everyday life in our society. While in many situations payments are still slow, opaque, siloed, expensive or even fail, users expect them to be fast, transparent, cheap, reliable and global.…

Cryptography and Security · Computer Science 2021-11-04 Lucian Trestioreanu , Cristina Nita-Rotaru , Aanchal Malhotra , Radu State

Some mission critical systems, such as fraud detection, require accurate, real-time metrics over long time windows on applications that demand high throughputs and low latencies. As these applications need to run "forever", cope with large…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-11-11 João Oliveirinha , Ana Sofia Gomes , Pedro Cardoso , Pedro Bizarro

In this paper, we propose a blockchain-based computing verification protocol, called EntrapNet, for distributed shared computing networks, an emerging underlying network for many internet of things (IoT) applications. EntrapNet borrows the…

Cryptography and Security · Computer Science 2021-05-04 Chong Li , Lei Zhang , Serbiao Fang

Consensus is unnecessary when the truth is available. In this paper, we present a new perspective of rebuilding the blockchain without consensus. When the consensus phase is eliminated from a blockchain, transactions could be canonized…

Networking and Internet Architecture · Computer Science 2022-09-29 Qing Wang , Jian Zheng , Huawei Huang , Jianru Lin

Despite being under development for over 15 years, transaction throughput remains one of the key challenges confronting blockchains, which typically has a cap of a limited number of transactions per second. A fundamental factor limiting…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-01-16 Evangelos Kolyvas , Alexandros Antonov , Spyros Voulgaris

Ensuring uninterrupted data flow in modern networks requires robust fault-tolerant mechanisms, especially in environments where reliability and responsiveness are critical. This paper presents the design and simulation of a fault-tolerant…

Networking and Internet Architecture · Computer Science 2025-08-21 Terlumun Gbaden , Mterorga Ukor , Grace Erdoo Ateata

In this study, we propose PRETRUST, a new framework to address the problem of the efficiency of payment process based on blockchain systems. PRETRUST is based on the thoughts of consortium chains, supporting fast payments. To make parties…

Cryptography and Security · Computer Science 2022-11-15 Huapeng Li , Baocheng Wang

In this paper we show E-FuzzEdge, a novel fuzzing architecture targeted towards improving the throughput of fuzzing campaigns in contexts where scalability is unavailable. E-FuzzEdge addresses the inefficiencies of hardware-in-the-loop…

Cryptography and Security · Computer Science 2025-10-03 Davide Rusconi , Osama Yousef , Mirco Picca , Flavio Toffalini , Andrea Lanzi

Blockchain technology facilitates the development of decentralized systems that ensure trust and transparency without the need for expensive centralized intermediaries. However, existing blockchain architectures particularly consortium…

Networking and Internet Architecture · Computer Science 2025-11-04 Qi Xia , Hu Xia , Isaac Amankona Obiri , Adjei-Arthur Bonsu , Grace Mupoyi Ntuala , Ansu Badjie , Tienin Bole Wilfried , Jiaqin Liu , Lan Ma , Jianbin Gao , Feng Yao

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

Most permissionless blockchain networks run on peer-to-peer (P2P) networks, which offer flexibility and decentralization at the expense of performance (e.g., network latency). Historically, this tradeoff has not been a bottleneck for most…

Cryptography and Security · Computer Science 2023-09-13 Weizhao Tang , Lucianna Kiffer , Giulia Fanti , Ari Juels

Byzantine Fault Tolerant (BFT) consensus forms the foundation of many modern blockchains striving for both high throughput and low latency. A growing bottleneck is transaction execution and validation on the critical path of consensus,…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-25 Ignacio Amores-Sesar , Mirza Ahad Baig , Seth Gilbert , Ray Neiheiser , Michelle X. Yeo

Fabric is a modular and extensible open-source system for deploying and operating permissioned blockchains and one of the Hyperledger projects hosted by the Linux Foundation (www.hyperledger.org). Fabric is the first truly extensible…

As an emerging technology, blockchain has achieved great success in numerous application scenarios, from intelligent healthcare to smart cities. However, a long-standing bottleneck hindering its further development is the massive resource…

Cryptography and Security · Computer Science 2020-04-21 Yinqiu Liu , Kai Qian , Jianli Chen , Kun Wang , Lei He

The sharing economy is centralizing services, leading to misuses of the Internet. We can list growing damages of data hacks, global outages and even the use of data to manipulate their owners. Unfortunately, there is no decentralized web…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-03-24 Deepal Tennakoon , Yiding Hua , Vincent Gramoli

Serial-parallel redundancy is a reliable way to ensure service and systems will be available in cloud computing. That method involves making copies of the same system or program, with only one remaining active. When an error occurs, the…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-04-08 Gutha Jaya Krishna

The Bitcoin system only provides eventual consistency. For everyday life, the time to confirm a Bitcoin transaction is prohibitively slow. In this paper we propose a new system, built on the Bitcoin blockchain, which enables strong…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-12-30 Christian Decker , Jochen Seidel , Roger Wattenhofer