> essentially just a hash of the contact’s public key and yours*. They're concatenated with deterministic sorting such that they are the same on both devices.

> essentially just a hash of the contact’s public key and yours*. They're concatenated with deterministic sorting such that they are the same on both devices. Which is a big pain because that means I can't simply tell everyone my public key, I have to explain that half the number is their own key and that they can ignore the non-matching part, which is dangerous advice... it could have been so simple but moxie is moxie