http://dds6qkxpeiqvogt4y2fd7vtsxq6pvokekb2h4la7jd4iwl4ljuawu5qd.onion/wiki/Dev/Technical_Introduction
However, hiding your identity is harder than just hiding your IP. Merely hiding IP addresses is an outdated, year 1990 threat model . Simply masking the user's IP address is insufficient, as adversaries employ various Data Collection Techniques that do not require IP addresses.