A UUID generator uses a complex algorithm, which takes into account factors, such as the current date and time, to produce a hexadecimal number that has a statistical guarantee of uniqueness.
Procedural due process. Principle required by the Constitution that when the state or federal government acts in such a way that denies a citizen of a life, liberty, or property interest, the person must first be given notice and the opportunity to be heard. See Due Process.
The doctrine of procedural due process under both amendments, as well as the definition of life, liberty, or property as the range of interests protected by the respective Due Process Clauses, is addressed in more detail in the entry on Due Process in the Fifth Amendment.