pixz(1) on Linux
The text f5e6a475a778, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
parallel, indexed xz compressor
Flags it lists
-
-# -
-d -
-e -
-f -
-h -
-i -
-l -
-o -
-p -
-q -
-t -
-x