Dr. Mark B. Lundeberg, 2018 September 6
bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2
A mechanism where a Bitcoin Cash payment is made to a personally identifying string (real name, email address, social media handle, etc.) instead of directly to a cryptographic key. The payment can only be claimed by the recipient if they generate a public key and get it certified by an identity verifier. This certification signature is confirmed in script via the new opcode OP_CHECKDATASIG.
Characteristics:
- Pay anyone, right now -- recipient doesn't need to have any cryptographic keys nor do they even need a phone/computer. (They only need these to claim the funds later.)