Nice, have you looked into ipfs ? they seems to be providing a similar solution the one described in the article, even if the main purpose they serve is different.
They will offer support for IPFS, so certainly they looked into this protocol.

Maidsafe (safenetwork), IPFS, DPFS (viewchain), Sia, Storj, Sharder protocol (ss).
But eventually we creating our own solution cause we can make it perfect for that what it need to do.