http://i3xi5qxvbrngh3g6o7czwjfxwjzigook7zxzjmgwg5b7xnjcn5hzciad.onion/print.html
KP_onion_tap , KS_onion_tap :
A 1024 bit RSA key
used for the obsolete TAP circuit extension handshake. Family keys When a group of relays are controlled by the same operator(s),
we call them a “family”.
A family has a keypair: KP_familyid_ed , KS_familyid_ed :
An ed25519 key used to prove membership in a family
by signing a family certificate .