US lawmakers have proposed a two-year ban on cryptocurrency mixers, known for their ability to obscure the link between depositor and withdrawal addresses. The Blockchain Integrity Act, sponsored by five Democratic congressmen, aims to prevent financial institutions, crypto exchanges, and other registered money service businesses from accepting or allowing withdrawals to mixer addresses. Violations could lead to a $100,000 civil penalty. During the ban, the Treasury Department would compile a report on the use of mixers in illicit finance and the ability of law enforcement to track transactions. The bill is yet to go to committee.