> If we could come up with a way of providing some sort of proof of individuality we would solve alot of problems. I wonder how this would work. Let's assume

> If we could come up with a way of providing some sort of proof of individuality we would solve alot of problems. I wonder how this would work. Let's assume there was a database of public keys for every citizen of the world, and every citizen knew their private key - how could we use that? Could we assign the right to mine the next block according to some deterministic pseudo-random algorithm that selects the next public key from the previous one? I guess that could work, though it would reqire some timeout in case someone is not interested in mining. The next question, how do we define some sort of public-private key pair in a way so a natural person can only create a single public key and can keep their private key secret?