libuuid1
Universally Unique ID library
The libuuid library generates and parses 128-bit universally unique
ids (UUIDs). A UUID is an identifier that is unique across both
space and time, with respect to the space of all UUIDs. A UUID can
be used for multiple purposes, from tagging objects with an extremely
short lifetime, to reliably identifying very persistent objects
across a network.
See RFC 4122 for more information.