A Study on Characteristics and Identification of Smart Ponzi Schemes
- Song, LL; Kong, XH
- 2022
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【Author】 Song, Lingling; Kong, Xiaohan
【Source】IEEE ACCESS
【影响因子】3.476
【Abstract】A smart Ponzi scheme (SPS) is a financial Ponzi scheme that is implemented and deployed in blockchain through smart contract technology. It is built on treachery and lies, by which, the organizers and speculators jointly deceive innocent investors by fostering a belief in obtaining the expected benefits. The occurrence of SPSs is originated from the vulnerability of the supervision mechanism on the blockchain. Although there are many excellent studies, these contributions overemphasized the methods themselves, did not describe the characteristics of the SPS well, and had certain limitations in practice. We made a thorough study on the characteristics of an SPS and brought out the vital features to identify an SPS for an investor. Based on the analysis of the contributions of predecessors, we propose an approach to test whether a contract is an SPS. This approach could deal with two situations, the contracts to be deployed and the long-run contracts respectively. Of the approach, the priori method can be exploited to distinguish whether the contract to be deployed is an SPS for the runner of a blockchain; the posterior method could protect an investor from being trapped in a fraud. At the same time, the posterior method can also be extended to monitor some contracts dynamically to alert users with the probability to be fallen into SPSs.
【Keywords】Contracts; Smart contracts; Blockchains; Codes; Investment; Feature extraction; Classification algorithms; Blockchain; digital currency; smart contract; smart Ponzi scheme
【发表时间】2022
【收录时间】2022-06-22
【文献类型】理论性文章
【主题类别】
区块链治理-技术治理-异常/非法交易识别
wangjiaxin
今日有1篇链上数据分析相关的文章(https://ieeexplore.ieee.org/document/9784909/metrics),发表于"IEEE Access",文章主要通过文献计量的方法先对庞氏骗局的交易特征和交易模式进行了分析和总结,此基础上,又提出了结合先验(面向新部署或者待部署的合约)和后验方法(面向已部署或者长期的合约可以根据字节码交易信息和配置文件设计了三个指标Daily Transaction Volume、Daily investors number、Daily Value Flow)来更加准确地检测部署的合约是否参与了庞氏骗局。在新方法中,先验方法来测试区块链运行者成为庞氏骗局的风险,后验方法可以保护投资者免受骗局,也可以扩展到动态监控一些合约,从而提醒用户可能陷入智能庞氏骗局。
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