Thanks for this. And you know what would be great...a blockchain that retaillers can post their website to when they accept a cryptocurrency (not just Bitcoin) for payment. One of my businesses is an online shop selling tea, and to my knowledge we are the only tea business in the whole UK (possibly Europe) that accepts bitcoin...and we give 10% off for doing it! (Can I do a quick cheeky plug here...?) http://magnificent-tea.co.uk