utmp_register(8) on Linux
The text 7f3774137052, as Debian 11 (Bullseye), Debian 10 (Buster) shipped it.
make entries in the utmp/wtmp database
Flags it lists
-
-A -
-D -
-U -
-W -
-e -
-h -
-l -
-p -
-s -
-t -
-u -
-w