Soul Bound Tokens

Permanence in a world of Sybils

Hey there,

In 1996, Pierre Omidiyar had a strange problem. His platform (eBay) allowed buyers and sellers from all walks of life to meet one another and trade at the click of a button. It mostly worked, except occasionally, people did prank sales or, worse, outright fraud. How do you stop a network of people conducting trade with one another from cheatin…