This manuscript presents an exhaustive review of blockchain-based mixing services, aiming to fill the existing gap between academic innovations and real-world implementations. Starting with an identification of the core functionalities and techniques employed by mixing services, the paper delves into detailed explanations of these operational mechanisms. It further outlines an evaluation framework tailored for a rigorous assessment, highlighting the key vulnerabilities and strengths of various solutions. In addition, the study identifies potential attack vectors that compromise these services. The paper explores the dual nature of mixing services, while they contribute to the preservation of privacy, a cornerstone of blockchain technologies, they can also facilitate illicit activities. By addressing key research questions, this study not only offers a comprehensive overview of the current state of mixing services but also sets the stage for future academic discourse in this evolving field.

翻译：本文对基于区块链的混币服务进行了全面综述，旨在填补学术创新与现实应用之间的现有空白。论文从识别混币服务的核心功能和技术入手，深入阐述了这些运行机制的详细原理。进一步地，本文提出了一套适用于严格评估的评估框架，突出了各种解决方案的关键漏洞和优势。此外，研究还识别了可能危害这些服务的潜在攻击向量。本文探讨了混币服务的双重性质——尽管它们有助于保护隐私（这是区块链技术的基石），但同时也可能助长非法活动。通过解决关键研究问题，本研究不仅全面概述了混币服务的现状，还为这一不断演变领域的未来学术讨论奠定了基础。