JonDo 00.15.004 IP changer with Bitcoin, connection manipulation protection and higher efficiency. JonDo is an open source and free-of-charge program for Windows, Linux and MacOS X. It hides the user’s IP adress behind an anonymous IP address. For every new payment, a new random Bitcoin address is generated. This hides against third parties for what a customer pays. All data about the payment proccess are deleted after completion in order to fulfill even the highest privacy requirements.
Source: https://thehackernews.com/2011/08/jondo-0015004-ip-changer-with-bitcoin.html