Okay I posted this idea here:
Basically why not have every account have it’s own unique dynamic hashe that would essentially act as it’s own strand of DNA. The hashe is generated based on one’s activity. So it changes based on everything you do. It’s encrypted randomized data so is worthless for tracking WHAT you do. The point of it is to differentiate one account from the next so the network can tell each account from the next one. This would mean that it wouldn’t matter to the network if there were two Bobs in existence because they wouldn’t have the same “network DNA” so to speak. And if one wanted to tell them apart one would just have to compare a segment of the hashe. As far as humans finding the right human one could release multiple pieces of information or have an ID code or something. Similiar concept to having a first name, last name an phone number. You might have the same lfirst and last name but you probably won’t live in the same town and certainly won’t have the same phone number. If all you know about someone is their publicID that’s going to be rather vauge but if you know two or 3 or 4 bits of info it narrows it down quite a bit. An app could even be written for finding people.