Identity
you keep.
Prove who you are without handing over your life. This is your mark: drag it, and notice it says nothing about you at all.
What actually happens
Somebody needs to know one thing about you, so they ask for a document that says twenty. They keep a copy. You lose track of it. Now they are responsible for your identity and neither of you wanted that.
Instead
They ask the question. Your device answers it. They keep what they asked for and a receipt, and nothing else.
Over 18
Your birthday never leaves. The question gets a yes.
Most of what anyone needs is a yes or a no. Are you over 18. Is your cover current. Are you cleared to do this work. Your device works that out from what it holds and sends only the answer. Where somebody genuinely needs a value, they have to ask for it as one, and you see that before you send it.
Being straight about it
Today most answers are your own word, signed.
That is already better than a typed form: the word is tied to an identity that travels with you and cannot be borrowed. But an answer only becomes independent when the body that issued a credential vouches for it directly. Until one does, this will tell you so rather than show a badge it has not earned.
This one is unclaimed
Nobody else
can hold it.
It is made on your device and it stays there. That means no one can take it from you, and no one can get it back for you either. Keep a backup.
Not saved anywhere yet.