CLUE：在以太坊中发现锁定的加密货币
CLUE: Towards Discovering Locked Cryptocurrencies in Ethereum
摘要：
作为最受欢迎的支持智能合约的区块链，以太坊上已经有超过29.6万种加密货币。然而，并非所有加密货币都可以由用户控制。例如，由于攻击，一些钱被永久锁定在钱包的帐户中。在本文中，我们对以太坊中的锁定加密货币进行了首次系统调查。特别是，我们定义了三类锁定加密货币的账户，并开发了一种名为CLUE的新工具来发现它们。结果显示，以太坊中锁定了超过2.16亿美元的加密货币。我们还分析了原因（即，攻击/行为）为什么加密货币被锁定。由于被锁定的加密货币永远无法被用户控制，因此避免与CLUE发现的账户进行交互并再次重复同样的错误可以帮助用户节省资金。
英文摘要：
As the most popular blockchain that supports smart contracts, there are already more than 296 thousand kinds of cryptocurrencies built on Ethereum. However, not all cryptocurrencies can be controlled by users. For example, some money is permanently locked in wallets' accounts due to attacks. In this paper, we conduct the first systematic investigation on locked cryptocurrencies in Ethereum. In particular, we define three categories of accounts with locked cryptocurrencies and develop a novel tool named CLUE to discover them. Results show that there are more than 216 million dollars value of cryptocurrencies locked in Ethereum. We also analyze the reasons (i.e., attacks/behaviors) why cryptocurrencies are locked. Because the locked cryptocurrencies can never be controlled by users, avoid interacting with the accounts discovered by CLUE and repeating the same mistakes again can help users to save money.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
