Jinse Finance reported that the privacy-focused crypto project Privacy Pools, developed by the 0xbow team, has launched the "Proof of Association" tool for Tornado Cash. This tool allows Tornado Cash users to dissociate their funds from illegal activities while maintaining anonymity. The system uses zero-knowledge technology to verify whether a withdrawal address is linked to known illicit addresses and records legitimate users in a public registry without exposing personal information. Currently, the blacklist has flagged more than 16,000 addresses involved in theft, hacking, or phishing. The team stated that this is an important step toward balancing user privacy and regulatory compliance, and also provides a practical model for future interoperability between privacy and compliance.