简单理解，钱包就是连接区块链的入口工具。目前主流的比特币、以太坊等公链均有多种钱包选择。从技术角度看，钱包可分为托管型和非托管型，前者由 第三方管理私钥，后者则完全由用户掌控。值得注意的是，钱包的开发成本虽低，但作恶成本更低，这也是业内普遍推荐使用开源钱包的重要原因。 钱包交互的核心：RPC协议 实现钱包与区块链交互的关键在于RPC（远程过程调用）协议。这个计算机通信协议允许程序调用另一台计算机的子程序，而无需额外编程。RPC分为同步 和异步两种调用方式：同步调用要求客户端等待返回结果；异步调用则无需等待，可通过回调通知获取结果。 你是否曾好奇，数字钱包如何安全地管理你的加密资产？作为连接用户与区块链的桥梁，钱包接口的开发不仅关乎技术实现，更涉及资产安全的核心命脉。 钱包的本质与分类 在众多RPC变体中，JSON-RPC因其无状态和轻量级特性成为主流选择。它通过JSON格式传递内容，直接定义调用函数名称，避免了RESTful接口中常见的 请求方法选择困扰。这种设计让开发者能更专注于业务逻辑而非协议细节。 钱包开发的技术架构 构建一个可靠的钱包需要扎实的区块链底层技术支持。不同类型的数字货币依托不同的区块链平台 ...

Core Insights - The report by SlowMist highlights the increasing frequency of on-chain crimes in the cryptocurrency industry, with 531 security incidents reported from 2024 to the first half of 2025, resulting in losses exceeding $4.386 billion. Notably, Wallet Drainer phishing attacks alone caused approximately $534 million in losses [1][13]. Group 1: Introduction and Context - The rise in on-chain crimes includes various scams such as Ponzi schemes, phishing websites, and unauthorized access to exchanges, leading to significant financial losses [13]. - The anonymity of cryptocurrencies complicates the identification of malicious activities, making cross-border cooperation and asset freezing challenging [13][14]. - The report emphasizes the necessity for all participants in the crypto ecosystem to understand on-chain tracking knowledge as a fundamental skill [14][15]. Group 2: On-Chain Tracking Fundamentals - The handbook introduces basic concepts of on-chain tracking, covering major public chains and cryptocurrencies, including Bitcoin, Ethereum, TRON, and BNB Chain, as well as stablecoins like USDT and USDC [1][19]. - It explains core tracking concepts such as hot wallets, cold wallets, deposit addresses, contract addresses, transaction hashes, and various blockchain operations [1][25][26]. Group 3: Tools and Techniques for Tracking - The report discusses blockchain explorers, highlighting Etherscan's functionalities, which allow users to check address balances, token holdings, and transaction details [2]. - It introduces SlowMist's MistTrack tool, which features AML risk scoring and address tagging, supporting multi-chain tracking and cross-chain analysis [2][3]. - Common patterns of fund movement are analyzed, including peel chains, one-to-many distributions, and the use of mixers and cross-chain bridges [2][11]. Group 4: Response Strategies for Asset Theft - The handbook outlines measures to take in the event of asset theft, including loss prevention, preserving evidence, preliminary analysis, contacting professionals, and filing reports [2][11]. - It emphasizes the importance of multi-role collaboration in asset freezing and recovery efforts [2][11]. Group 5: Advanced Tracking Techniques - The report delves into tracking methods for cross-chain bridges, privacy tools, and NFTs, providing case studies for better understanding [2][11]. - It discusses address behavior analysis, including active behavior feature recognition and address clustering, and mentions the application of AI tools in on-chain analysis [2][11].