What mechanism helps ensure data integrity and traceability in Care Everywhere?

• A. Audit logs and provenance.
• B. Random encryption.
• C. Anonymous transfers.
• D. Open access.

Answer: (C)

Data integrity and traceability in Care Everywhere come from keeping a reliable record of every data activity. Audit logs capture each access, change, or transfer of a patient record, including who did it, when it happened, and what exactly was done. Provenance goes further by detailing the data’s origin and every step it has undergone—where it came from, how it was routed, and any transformations along the way. This combination creates an auditable trail that makes tampering detectable, supports accountability, and helps meet regulatory and safety requirements for exchanging health information.

Other options don’t fit as well. Random encryption protects confidentiality but doesn’t provide a traceable activity history. Anonymous transfers hinder accountability by stripping identifiers needed to trace data back to its source. Open access removes controls entirely, undermining integrity and the ability to track data movements.