If you haven't heard yet, Blockchain is the new kid on the block. It's the latest talk by all the biggest tech giants. Wikepedia defines it as "a continuously growing list of records, called blocks, which are linked and secured using cryptography". Blockchain acts as an open, distributed ledger, which records and keeps track of transactions between two parties. Everyone within such a decentralized network is able view this shared transaction ledger. In such a setup, data control doesn't belong to one organizaiton.