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The rich still get richer: Empirical comparison of preferential attachment via linking statistics in Bitcoin and Ethereum
arXiv - CS - Social and Information Networks Pub Date : 2021-02-24 , DOI: arxiv-2102.12064
Dániel Kondor, Nikola Bulatovic, József Stéger, István Csabai, Gábor Vattay

Bitcoin and Ethereum transactions present one of the largest real-world complex networks that are publicly available for study, including a detailed picture of their time evolution. As such, they have received a considerable amount of attention from the network science community, beside analysis from an economic or cryptography perspective. Among these studies, in an analysis on the early instance of the Bitcoin network, we have shown the clear presence of the preferential attachment, or "rich-get-richer" phenomenon. Now, we revisit this question, using a recent version of the Bitcoin network that has grown almost 100-fold since our original analysis. Furthermore, we additionally carry out a comparison with Ethereum, the second most important cryptocurrency. Our results show that preferential attachment continues to be a key factor in the evolution of both the Bitcoin and Ethereum transactoin networks. To facilitate further analysis, we publish a recent version of both transaction networks, and an efficient software implementation that is able to evaluate linking statistics necessary for learn about preferential attachment on networks with several hundred million edges.

中文翻译:

富人仍然变得更富裕:通过链接比特币和以太坊中的统计数据,对优先依恋进行经验比较

比特币和以太坊交易是公开研究的最大的现实世界复杂网络之一,包括其时间演变的详细图片。这样,除了从经济或密码学角度进行分析之外,它们还受到了网络科学界的极大关注。在这些研究中,通过对比特币网络的早期实例进行分析,我们已经清楚地显示了优先依附关系,即“富人越富”现象。现在,我们使用最近版本的比特币网络重新审视这个问题,该网络自我们最初的分析以来已增长了近100倍。此外,我们还与第二重要的加密货币以太坊进行了比较。我们的结果表明,优先附着仍然是比特币和以太坊跨转录网络发展的关键因素。为了促进进一步的分析,我们发布了这两种交易网络的最新版本以及一种高效的软件实现,该软件能够评估必要的链接统计信息,以了解具有数亿条边缘的网络上的优先连接。
更新日期:2021-02-25
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