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首页> 外文会议>2019 IEEE International Conference on Blockchain and Cryptocurrency >Velocity: Scalability Improvements in Block Propagation Through Rateless Erasure Coding
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Velocity: Scalability Improvements in Block Propagation Through Rateless Erasure Coding

机译：速度：通过无速率擦除编码提高块传播的可伸缩性

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摘要

Blockchain technology and other distributed ledger systems fill an important role in resilient data storage and publication. However, their normally-decentralized methods also bring unique challenges distinct from more traditional approaches. One lies in the replication of data between participating nodes; since no individual node is more trusted than any other, each node maintains its own copy of the entire ledger for the purposes of validating new transactions. Improving how this information is stored and more importantly, how it propagates across the network, are open research questions. In this work, we propose Velocity, a novel block propagation approach based on fountain codes, allowing for better decentralized delivery of blocks and reduced network bottlenecks without sacrificing the security guarantees of the blockchain ledger itself. We also provide an assessment of economic incentives and their impact on participant behavior, showing that the proposed approach is financially beneficial to rational actors. We conclude by showing experimentally that this approach permits for the mining of even larger blocks, thereby increasing transaction throughput of the system compared to existing state of the art methods.
机译：区块链技术和其他分布式分类帐系统在弹性数据存储和发布中扮演着重要角色。但是，它们的通常分散的方法也带来了不同于传统方法的独特挑战。一是参与节点之间的数据复制。由于没有哪个节点比其他节点更受信任，因此每个节点都维护自己的整个分类帐副本，以验证新交易。改进此信息的存储方式，更重要的是，如何在网络中传播这些信息是未解决的研究问题。在这项工作中，我们提出了Velocity，这是一种基于源代码的新颖的区块传播方法，可以在不牺牲区块链分类账本身安全性的前提下更好地分散区块并减少网络瓶颈。我们还提供了经济激励措施及其对参与者行为的影响的评估，表明所提出的方法在经济上对理性行为者有利。我们通过实验表明，该方法允许挖掘更大的块，从而与现有技术水平相比增加了系统的事务处理吞吐量。

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