DataSet: Empirical study of the smart contract evolution based standard upgradability methods used in Blockchain

This dataset provides information on the metrics of the cost, size, complexity, and security collected from a list of 18 smart contract projects running on Ethereum, including 157 different versions. This dataset was used to analyze the smart contract evolution carried out in our study "Smart contract evolution: Empirical study of the smart contract evolution based standard upgradability methods used in Blockchain".本数据集收录了从18个运行于以太坊（Ethereum）平台的智能合约（Smart Contract）项目中采集的成本、规模、复杂度与安全性相关指标，共计涵盖157个不同版本。本数据集曾被用于分析我们在研究《智能合约演化：基于区块链（Blockchain）所使用的标准可升级方法的智能合约演化实证研究》中开展的智能合约演化相关工作。