Also see "Bitcoin's lien problem":

> "Indeed, given the high volume of fraud and default in the bitcoin network, chances are most bitcoins have competing claims over them by now. Put another way, there are probably more people with legitimate claims over bitcoins than there are bitcoins. And if they can prove the trail, they can make a legal case for reclamation."

https://ftalphaville.ft.com/2015/03/24/2122678/bitcoins-lien...