Correlating Account on Ethereum Mixing Service via Domain-Invariant feature learning

• URL: http://arxiv.org/abs/2505.09892v1
• Date: Thu, 15 May 2025 01:27:12 GMT
• Title: Correlating Account on Ethereum Mixing Service via Domain-Invariant feature learning
• Authors: Zheng Che, Taoyu Li, Meng Shen, Hanbiao Du, Liehuang Zhu,
• Abstract summary: Untraceability of transactions facilitated by mixing services like Tornado Cash poses significant challenges to blockchain security and financial regulation.<n>We propose StealthLink, a novel framework that addresses these limitations through cross-task domain-invariant feature learning.<n>Experiments on real-world mixing transaction datasets demonstrate that StealthLink achieves state-of-the-art performance, with 96.98% F1-score in 10-shot learning scenarios.
• Score: 13.405407918706254
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The untraceability of transactions facilitated by Ethereum mixing services like Tornado Cash poses significant challenges to blockchain security and financial regulation. Existing methods for correlating mixing accounts suffer from limited labeled data and vulnerability to noisy annotations, which restrict their practical applicability. In this paper, we propose StealthLink, a novel framework that addresses these limitations through cross-task domain-invariant feature learning. Our key innovation lies in transferring knowledge from the well-studied domain of blockchain anomaly detection to the data-scarce task of mixing transaction tracing. Specifically, we design a MixFusion module that constructs and encodes mixing subgraphs to capture local transactional patterns, while introducing a knowledge transfer mechanism that aligns discriminative features across domains through adversarial discrepancy minimization. This dual approach enables robust feature learning under label scarcity and distribution shifts. Extensive experiments on real-world mixing transaction datasets demonstrate that StealthLink achieves state-of-the-art performance, with 96.98\% F1-score in 10-shot learning scenarios. Notably, our framework shows superior generalization capability in imbalanced data conditions than conventional supervised methods. This work establishes the first systematic approach for cross-domain knowledge transfer in blockchain forensics, providing a practical solution for combating privacy-enhanced financial crimes in decentralized ecosystems.

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