Lightnings over rose bouquets: an analysis of the topology of the Bitcoin Lightning Network
Lightnings over rose bouquets: an analysis of the topology of the Bitcoin Lightning Network
复制标题
玫瑰花束上的闪电：比特币闪电网络拓扑分析
DOI：
10.1109/compsac51774.2021.00053
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
L. Ricci
中科院分区：
文献类型：
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作者：
Andrea Lisi;D. Maesa;P. Mori;L. Ricci
闪电网络是一个 P2P 覆盖层，允许两个比特币用户通过交易创建一个新的支付通道，然后独立于比特币区块链在该通道上交换加密货币，改善了比特币的可扩展性问题，使其更适合频繁的小额支付。此外，通道还可以用于在本身不共享直接通道的两个用户之间路由支付。在本文中，我们研究了给定时间段内闪电网络的拓扑结构，对通道和组成网络的节点进行了大量分析。我们研究流失率，评估中心性测量和聚类系数以评估网络连接性，最后分析我们命名为“花束”的模式的存在。这种模式的重要性通过以下发现得到了证明：删除“花束”的特定节点（占总数的 1%）会导致与约 41% 节点的最大组成部分断开连接。
The Lightning Network is a P2P overlay that allows two Bitcoin users to create a new payment channel with a transaction, and later exchange cryptocurrency on that channel independently from the Bitcoin blockchain, improving Bitcoin’s scalability issues and making it more suitable for frequent micropayments. Moreover, the channels can also be used to route payments between two users who do not share a direct channel themselves.In this paper we study the topology of the Lightning Network in a given time period, performing a number of analysis on the channels and on the nodes composing the network. We study the churn rate, we evaluate centrality measurements and the clustering coefficient to evaluate the network connectivity, and finally we analyze the presence of a pattern that we named "bouquet". The importance of this pattern is proven by the finding that, removing specific nodes of the "bouquets" (1% of the total) causes the disconnection from the largest component of about 41% nodes.