Yeah I think we’re over thinking this. In real life we have several pieces of simple easily rememberable data to identify ourselves.
Given name.
Surname.
Birthplace.
Family lineage
Age
Current location
Contact Information etc
Bob of Someplace
Alice out of Mary by Bob
Mary#1 is 20yrs older than Mary#2 and Mary#1 is mother of Alice and mate of Bob of Someplace.
We don’t need to know all this but couldn’t a dynamic hash be determined based on one’s activity on the network? This hash would not be readable as something people could use to track activities. When you wanted to add someone you’d add both public ID and their hash.