You need some amount of identity checking, to tell you that the https://uncesnsored.citadel.org/ https://uncesnsored.citadel.org/ you're talking to today is the

You need some amount of identity checking, to tell you that the https://uncesnsored.citadel.org/ https://uncesnsored.citadel.org/ you're talking to today is the same one you were talking to yesterday and last week. SSH handles this by remembering the key used on the first connection; Perspectives goes one better and checks from multiple parts of the network. Tying these online identities to physical-world identities is what can be separate.