UUID
A Universally Unique Identifier (UUID) is an 128-bit identifier used to uniquely identify objects.
Example: 65613210-44d4-11e6-beb8-9e71128cae77
u:uuid
A Universally Unique Identifier (UUID) is an 128-bit identifier used to uniquely identify objects.
Example: 65613210-44d4-11e6-beb8-9e71128cae77