That is a cryptocurrency. The work coming from the people at Hyperledger, who are also using blockchains, is an ordinary database complete with access controls.

That is a cryptocurrency. The work coming from the people at Hyperledger, who are also using blockchains, is an ordinary database complete with access controls. It uses the same data structure but without any of the political goals and with many different design decisions. A blockchain is just a data structure. It isn't even a very interesting one. In common parlance "blockchain" isn't well-defined: it just refers to something that's, like anarchy, dude, whoa....