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相关论文: Minotaur: Multi-Resource Blockchain Consensus

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Given that Proof-of-Work (PoW) and Proof-of-Stake (PoS) are plutocratic, and other common consensus protocols are mostly permission-based, we look for a consensus protocol that will suit the needs of e-Democracy. In particular, what we need…

社会与信息网络 · 计算机科学 2020-08-03 Ouri Poupko , Nimrod Talmon

Blockchain is a novel technology that is rising a lot of interest in the industrial and re- search sectors because its properties of decentralisation, immutability and data integrity. Initially, the underlying consensus mechanism has been…

密码学与安全 · 计算机科学 2018-05-10 Stefano De Angelis

The Decentralized-Consistent-Scale (DCS) Triangle defines three dimensions that illustrate the tradeoffs of the blockchain consensus mechanism. In this paper, we propose a new hybrid consensus protocol, called Deterministic Proof of Work…

密码学与安全 · 计算机科学 2018-11-15 Zhuan Cheng , Gang Wu , Hao Wu , Muxing Zhao , Liang Zhao , Qingfeng Cai

The distributed consensus mechanism is the backbone of the rapidly developing blockchain network. Blockchain platforms consume vast amounts of electricity based on the current consensus mechanism of Proof of Work. Here, we point out an…

计算机与社会 · 计算机科学 2022-01-19 Xiaoyang Shi , Hang Xiao , Weifeng Liu , Xi Chen , Klaus. S. Lackner , Vitalik Buterin , Thomas F. Stocker

Blockchains combine other technologies, such as cryptography, networking, and incentive mechanisms, to enable the creation, validation, and recording of transactions between participating nodes. A consensus algorithm is used in a blockchain…

社会与信息网络 · 计算机科学 2021-09-01 Oladotun Aluko , Anton Kolonin

Proof-of-Work (PoW) consensus is traditionally analyzed under the assumption that all miners incur similar costs per unit of computational effort. In reality, costs vary due to factors such as regional electricity cost differences and…

计算机科学与博弈论 · 计算机科学 2025-05-29 Yogev Bar-On , Ilan Komargodski , Omri Weinstein

The Metaverse is rapidly evolving, bringing us closer to its imminent reality. However, the widespread adoption of this new automated technology poses significant research challenges in terms of authenticity, integrity, interoperability,…

密码学与安全 · 计算机科学 2023-07-21 Khadija Manzoor , Umara Noor , Zahid Rashid

Proof-of-Work (PoW) consensus mechanism is popular among current blockchain systems, which leads to an increasing concern about the tremendous waste of energy due to massive meaningless computation. To address this issue, we propose a novel…

分布式、并行与集群计算 · 计算机科学 2022-11-15 Canhui Chen , Zerui Cheng , Shutong Qu , Zhixuan Fang

All public blockchains are secured by a proof of opportunity cost among block producers. For example, the security offered by proof-of-work (PoW) systems, like Bitcoin, is due to spent computation; it is work precisely because it cannot be…

计算机科学与博弈论 · 计算机科学 2019-08-27 George Bissias , Brian N. Levine , David Thibodeau

An important feature of Proof-of-Work (PoW) blockchains is full dynamic availability, allowing miners to go online and offline while requiring only 50% of the online miners to be honest. Existing Proof-of-stake (PoS), Proof-of-Space and…

密码学与安全 · 计算机科学 2021-02-22 Soubhik Deb , Sreeram Kannan , David Tse

Blockchain technology enables stakeholders to conduct trusted data sharing and exchange without a trusted centralized institution. These features make blockchain applications attractive to enhance trustworthiness in very different contexts.…

分布式、并行与集群计算 · 计算机科学 2022-07-18 Xiaohui Zhang , Mingying Xue , Xianghua Miao

Proof-of-Work (PoW) is a popular blockchain consensus algorithm that is used in cryptocurrencies like Bitcoin in which hashing operations are repeated until the resulting hash has certain properties. This approach uses lots of computational…

密码学与安全 · 计算机科学 2022-09-09 Felix Hoffmann

In the white book of Bitcion, Satoshi Nakamoto described a bitcoin system that can realize point-to-point online payment without a third-party organization. After supporting this magical application scenario and subverting the traditional…

密码学与安全 · 计算机科学 2022-09-26 Shi Yan

This paper introduces Proof of Team Sprint (PoTS), a novel consensus algorithm designed to address the significant energy inefficiencies inherent in traditional Proof of Work (PoW) systems. PoTS shifts the consensus mechanism from an…

分布式、并行与集群计算 · 计算机科学 2024-10-17 Naoki Yonezawa

The core of a blockchain network is its consensus algorithm. Starting with the Proof-of-Work, there have been various versions of consensus algorithms, such as Proof-of-Stake (PoS), Proof-of-Authority (PoA), and Practical Byzantine Fault…

分布式、并行与集群计算 · 计算机科学 2024-12-10 Tariqul Islam , Faisal Haque Bappy , Tarannum Shaila Zaman , Md Sajidul Islam Sajid , Mir Mehedi Ahsan Pritom

The blockchain has found numerous applications in many areas with the expectation to significantly enhance their security. The Internet of things (IoT) constitutes a prominent application domain of blockchain, with a number of architectures…

密码学与安全 · 计算机科学 2021-09-09 Sotirios Brotsis , Nicholas Kolokotronis , Konstantinos Limniotis , Stavros Shiaeles

Proof-of-Work (PoW) systems face critical challenges, including excessive energy consumption and the centralization of mining power among entities with expensive hardware. Static mining pools exacerbate these issues by reducing competition…

密码学与安全 · 计算机科学 2025-04-25 Rizwanul Haque , SM Tareq Aziz , Tahrim Hossain , Faisal Haque Bappy , Muhammad Nur Yanhaona , Tariqul Islam

In this paper, we informally introduce the Pulsar proof of stake consensus paper and discuss the relevant design decisions and considerations. The Pulsar protocol we propose is designed to facilitate the creation of a proof of stake…

密码学与安全 · 计算机科学 2025-07-18 Samer Afach , Benjamin Marsh , Enrico Rubboli

Blockchain is a type of decentralized distributed network which acts as an immutable digital ledger. Despite the absence of any central governing authority to validate the blocks in the ledger, it is considered secure and immutable due to…

分布式、并行与集群计算 · 计算机科学 2021-09-07 Shashank Joshi

Regardless of their variations, blockchains require a consensus mechanism to validate transactions, supervise added blocks, maintain network security, synchronize the network state, and distribute incentives. Proof-of-Work (PoW), one of the…

分布式、并行与集群计算 · 计算机科学 2024-07-25 Amirreza Sokhankhosh , Sara Rouhani