The repository shall execute the testing process for each class of Content Information of the AIPs.

APTrust executes the documented testing process through restoration spot tests. This service is optional, and depositors must opt in for restoration spot tests through Registry.

The restoration spot test process:

• Selects one intellectual object from each depositor institution.
• Excludes objects restored within the previous 180 days.
• Currently limits selection to objects 50 GB or smaller to avoid excessive burden on depositors.
• Places the object into the restoration work queue using the same workflow as a depositor-initiated restore.
• Depositors are notified when the restored object is available to retrieve.

Depositors are expected to confirm:

• That the restored bag is complete.
• That it contains the expected content.
• That they can make sense of the restored materials.

This process is executed across all objects deposited by participating institutions.