In the article, block chain is offered as a solution. Be wary of this. The problem with the block chain is it relies on an intricate infrastructure of computers, switches and private networks. All that needs to happen is a "power failure". The other attack vector is a coordinated attack. Just because you haven't seen it yet, doesn't mean it hasn't been tried. As implausible as it may sound, it is possible to pull off. Of course, it will be a one time event.