entryUUID

Holds a Universally Unique Identifier (UUID) assigned to the entry. The server generates the value of this operational attribute when adding the entry to the directory. A UUID is a 16-octet (128-bit) string, constrained to the namespace specified in RFC 4122 , and encoded using the ASCII representation. Example: 597ae2f6-16a6-1027-98f4-d28b5365dc14.