The great influence of Bitcoin has promoted the rapid development of blockchain-based digital currencies, especially the altcoins, since 2013. However, most altcoins share similar source codes, resulting in concerns about code innovations. In this paper, an empirical study on existing altcoins is carried out to offer a thorough understanding of various aspects associated with altcoin innovations. Firstly, we construct the dataset of altcoins, including source code repositories, GitHub fork relations, and market capitalizations (cap). Then, we analyze the altcoin innovations from the perspective of source code similarities. The results demonstrate that more than 85% of altcoin repositories present high code similarities. Next, a temporal clustering algorithm is proposed to mine the inheritance relationship among various altcoins. The family pedigrees of altcoin are constructed, in which the altcoin presents similar evolution features as biology, such as power-law in family size, variety in family evolution, etc. Finally, we investigate the correlation between code innovations and market capitalization. Although we fail to predict the price of altcoins based on their code similarities, the results show that altcoins with higher innovations reflect better market prospects.
翻译：自2013年以来,Bitcoin的巨大影响促进了以链链为基础的数字货币的快速发展,特别是altcoins,自2013年以来,Bitcoin的巨大影响促进了以链路为基础的数字货币,特别是altcoins的快速发展,然而,大多数altcoins都拥有类似的源代码代码,从而引起了对代码创新的关切。在本文件中,对现有altcoins进行了实证研究,以提供对与altcoin创新有关的方方面面的透彻理解。首先,我们构建了altcoins数据集,包括源代码储存库、GitHub Fork关系和市场资本化(Cap)等。然后,我们从源代码代码相似性的角度分析了altcoin创新。结果显示,超过85%的altcoin 库库库库库库库库具有很高的相似性。接下来,我们建议采用时间组合算法来消除各种altcoins之间的继承关系。 建立altcoin家族的模型,其中呈现了生物学的类似性特征特征,例如家庭规模的权力法,家庭演变等。最后,我们从源代码创新与市场资本化的关联性研究。虽然我们没有预测到 altcoins的价格,但是我们没有根据代码创新更好地反映其市场相似性。
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