Re: Can someone explain
"How this is in principle any different from giving people a database of encrypted rows, and providing a way for them to get the key to unlock certain rows? This is probably a little simpler, and you can post the blockchain publicly, but they appear to be making claims about its security that they can't deliver on."
I agree. It sounds like rubbish to me. I don't see how you can, after giving someone the e-mail address of a third party, stop them using it any way they want with 'the cloud', 'blockchain', or any other word off the Bullshit Bingo card.