The company, a Y Combinator graduate formerly known as Onename, said in an October interview with The Observer that it has been designing an alternative browser powered by the bitcoin blockchain that it imagines will enable users to store all their posts, photos, messages, and calendar appointments in their own cloud sites. In short, web surfers would no longer leave a trail of the data they’ve generated with powerhouses like Facebook and Google unless they want to grant companies access to it.

https://techcrunch.com/2017/01/05/blockstack-formerly-called-onename-just-raised-4-million/