What if we wanted to keep something secret for awhile, with no key to unlock it, only the changing state of the world. I present an attempt to do just that, using a smart card and the bitcoin block chain as a global proof-of-work system.
What if we wanted to keep something secret for awhile, with no key to unlock it, only the changing state of the world. I present an attempt to do just that, using a smart card and the bitcoin block chain as a global proof-of-work system.