A user's identity stays undisclosed while they use a resource or service, yet they remain accountable through an alias. Components: FPR_PSE.1 Pseudonymity, FPR_PSE.2 Reversible pseudonymity (identity recoverable under defined conditions) and FPR_PSE.3 Alias pseudonymity (rules on how aliases are assigned and reused).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.