string value.

This value represents the ODE element of IPTC UNO structure. The ODE (Object Descriptor Element), in conjunction with the UCD and the IPR, ensures the uniqueness of the UNO. The provider may structure the element by use of a solidus '/' character.

Contains a minimum of one and a maximum of 60 minus the number of IPR bytes, consisting of graphic characters, except colon ':' asterisk '*' and question mark '?'.