Maybe the UUID (on Linux) can be used to retrieve the random number
$ cat /proc/sys/kernel/random/uuid
cdd52826-327d-4355-9737-895f58ad11b4
To get the random number between 70 and 100
POSIXLY_CORRECT=1 awk -F - '{print(("0x"$1) % 30 + 70)}
' /proc/sys/kernel/random/uuid
