uuid

UUIDs (Universally Unique IDentifier), also known as GUIDs (Globally Unique IDentifier). A UUID is 128 bits long, and can guarantee uniqueness across space and time. RFC-4122

Assumed to be a hexadecimal string compliant with one of the following:

• Time-Based UUID Version 1
• Name-Based UUID Version 3 & 5
• Truly-Random or Pseudo-Random Version 4