区块链中的去中心化矿池游戏

Zhihuai Chen, Xiaoming Sun, Xiaohan Shan, Jialin Zhang
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引用次数: 3

摘要

本文运用合作博弈论对矿池进行建模,设计矿池奖励分配方案。具体来说,我们提出了一个名为“去中心化矿池博弈(DMPG)”的合作博弈模型,DMPG的玩家集是所有矿池管理者的集合,效用函数定义为区块奖励和交易费用的总和。在我们的模型中,我们将矿池中的矿工视为正常节点,而不仅仅是计算能力,即所有加入矿池的矿工也参与网络中交易的传播和验证,这种设置可以有效地避免中心化矿池的形成。设计了两种DMPG的奖励分配方案,并给出了有效的计算方法。一种方案是稳定分配方案,其重点是维护矿工的合理性(即DMPG的核心)和矿池的安全性(即抵抗池块扣留攻击)。另一种方案是关注矿工公平性的公平分配方案(即DMPG的Shapley值)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Decentralized Mining Pool Games in Blockchain
We use cooperative game theory to model mining pools and design reward allocation schemes in this paper. Specifically, we propose a cooperative game model named as “Decentralized Mining Pool Game (DMPG)” The player set of DMPG is the set of all pool managers and the utility function is defined as the sum of block rewards and transaction fees. In our model, we take miners in pools as normal nodes rather than only as computational powers, that is, all miners joining mining pools also participate in the propagation and validation of transactions in the network, this setting can effectively avoid the formation of centralized mining pools. We design two kinds of reward allocation schemes for DMPG and present efficient methods to compute them. One scheme is the stable allocation scheme which focuses on maintaining the rationality of miners (i.e. the core of DMPG) and the security of mining pools (i.e. resistance to pool block withholding attack). The other kind of scheme is the fair allocation scheme which focuses on the fairness of miners (i.e. the Shapley value of DMPG).
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