ly monitor the integrity of AIPs. 
Supporting Text 
This is necessary in order to protect the integrity of the archival objects over time. 
AUDIT AND CERTIFICATION OF TRUSTWORTHY DIGITAL REPOSITORIES 
CCSDS 652.0-M-1 
Page 4-21 
September 2011 
Examples of Ways the Repository Can Demonstrate It Is Meeting This Requirement 
Fixity information (e.g., checksums) for each ingested digital object/AIP; logs of fixity 
checks; documentation of how AIPs and Fixity information are kept separate; documentation 
of ho