Ensure PII is accurate and complete, adequate and relevant to the purpose, and kept current unless there is a legitimate reason to retain older data; before processing PII obtained from anyone other than the principal, make sure it is reliable; verify the validity of a principal's claims before changing PII where appropriate; establish collection procedures that support accuracy; and establish control mechanisms to check accuracy and quality periodically, especially where the data could grant or deny a significant benefit or cause significant harm.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.