没有隐私的国度：比特币匿名性面临的不断演变的挑战
No Country for Old Privacy: The Evolving Challenges of Anonymity in Bitcoin
浏览论文内容
中文总结 AI 辅助
通过纵向测量研究，检测比特币网络中第二代匿名协议（如CoinJoin、CoinSwap等）的采用率，发现其占比不足1%，且在关键监管事件后显著下降，表明隐私用户正转向更隐蔽的方法。
中文摘要 AI 辅助
我们对比特币网络中可检测的第二代匿名化协议（包括CoinJoin、CoinSwap、CoinShuffle和隐形地址）的采用情况进行了纵向测量研究。通过实现并改进一套启发式过滤器，我们识别出超过594万笔CoinJoin交易和2330万笔CoinSwap交易。此外，CoinShuffle的使用意外地与Wasabi钱包运营期高度吻合。我们的分析揭示了持续较低的采用率，这些协议占网络交易的比例不足1%，并且在关键监管事件后可检测到的使用量急剧下降。此外，我们没有发现标准化隐形地址采用的证据，表明未能就共同隐私标准达成一致。本研究提供了一个利基生态系统的全面图景，其链上可见性在很大程度上被抑制，强烈表明寻求隐私的用户正在转向透明度更低、更不易检测的方法。
英文摘要
We present a longitudinal measurement study on the adoption of detectable, second-generation anonymisation protocols in the Bitcoin network, including CoinJoin, CoinSwap, CoinShuffle and Stealth Addresses. By implementing and refining a suite of heuristic filters, we identify over 5.94 million CoinJoin and 23.3 million CoinSwap transactions. Besides, the use of CoinShuffle was unexpectedly found to be closely aligned with the Wasabi wallet operation period. Our analysis reveals consistently low adoption rates, with these protocols constituting less than 1% of network transactions, and a sharp decline in detectable usage following key regulatory events. Furthermore, we find no evidence of standardised Stealth Address adoption, indicating a failure to converge on a common privacy standard. This study provides a comprehensive picture of a niche ecosystem whose on-chain visibility has been largely suppressed, strongly suggesting the migration of privacy-seeking users to less transparent and less detectable methods.
