Blockchain, like the internet in its early years, is hard to understand and predict. In a blockchain, transactions are recorded chronologically and form a "block" which can be data of many types- currency, digital rights, identity, property titles to name a few and these data are then formed into "chains" and distributed across many participants in the network. Increasingly, the attention is shifting from Bitcoin to blockchain and it's not solely about the use of the digital currency anymore, but rather what other applications blockchain technology could create in the future.