Being known.
~alter
Someone always holds a record of who you are. This one is yours.
~alter is a record of who you are, built from what you do. You own it, and you decide who can read it.
Anyone can claim who they are.The proof is what you do.
The part of you that handles being known.
Your ~handle is that record. You own it. You decide who reads it.
Any app can verify a ~handle.
alter.verify("~handle")
// known, only as far as you allow
Only if you've said yes. You choose who's allowed to ask.