The repository shall ensure that the PDI is persistently associated with the relevant Content Information.

The PDI collected from packages or generated by APTrust is never removed or deleted from Registry or APTrust’s underlying database. PDI is also persistently associated with content through metadata tagging. As long as the object is stored in APTrust, the metadata is persistently associated with it. This can be verified by looking at file and object API endpoints, which return these metadata properties when a file or object id is queried. Restored objects also contain the BagIt manifest and tag files for the object, with PDI.

Also see APtrust Bagging Requirements, Ingest and Deletion documentation.