From https://www.jwz.org/xscreensaver/xscreensaver-6.00.tar.gz

-rw-rw-r-- 1 zblaxell zblaxell 27786617 Apr  1 19:32 xscreensaver-6.00.tar.gz
13ac90c2b684626da363a899021ad3509434c3cb  xscreensaver-6.00.tar.gz