The Paxutils project is now maintained by Sergey Poznyakoff. See paxutils - GNU Project - Free Software Foundation (FSF). For more of historical context, also see L'icule Ordi: Paxutils status.
Some old sources for this project are also available from pinard/paxutils - GitHub — merely select the tag corresponding to the version you want, and ask for download. This became possible after Sergey got from Paul Eggert, on 2004-03, a copy of all administrative files I (François Pinard) transmitted to Paul on 1999-07, when Paul officially took over tar and Paxutils responsibilities.