persistidref 

Points to an element inside the target resource which must be identified by an ID attribute having a value which is persistent for all versions of the target resource, i.e. for its entire lifecycle. (added NAR 1.8)

Attribute Information

Used By

Attribute Group targetResourceAttributes

Source 

<xs:attribute name="persistidref" type="xs:string" use="optional">
  <xs:annotation>
    <xs:documentation>Points to an element inside the target resource which must be identified by an ID attribute having a value which is persistent for all versions of the target resource, i.e. for its entire lifecycle. (added NAR 1.8)</xs:documentation>
  </xs:annotation>
</xs:attribute>

Sample