18.104.22.168 - The repository shall maintain the bi-directional associations between its AIPs and their descriptive information over time.
SP's bi-directional associations between its AIPs and their Descriptive Information are linked through identical URIs. These URIs remain the same throughout the AIP's life, unless the AIP is replaced or reloaded, in which case the URI change is performed systematically and recorded in the preservation metadata.
The relationship between the CDO and the Descriptive Information cannot be broken as both are part of the same file.
Digital Preservation Policy Librarian