Is there a coin that exists that does this, or at least any papers discussing how it could be carried out in a manner that minimizes or totally makes loss/fraud ? I've seen that crypto-currencies do not seem to have a proper means of paying back coins. Is there possibly ways to solve that fundamental issue, ie someone take a loan and runs off ?
it seems, that coins like that do not exist and neve wil be. Why ? because in other side, every coins and as long there's a demand and supply, its hard to give that coins reach the payback unless its really have a great potential in the future and already realize in real life. So far people that involved in crypto are just to gain every single profit they can get, no matter what happen.