Blockchain with smart contract is the most useful case of the blockchain technology, in my opinion, something like Ethereum and its decentralized smart contracts. There are many more usages for it, though. We still haven't seen blockchain flourishing yet, just Bitcoin's and altcoins'.
I agree, I really think we are on a big discovery trend.
I've posed about this before and its a small example of just
how widely used Blockchain Technology can become.
Bosch are looking at implementing it to counteract Odometer fraud Here is the link >
http://www.eenewsautomotive.com/news/bosch-plans-anchor-ai-blockchain-car/page/0/1
Quote from bottom of Page 1 to page 2 >
"In his keynote speech, Denner identified more technologies that will help Bosch to
open up new business opportunities. One example is blockchain – the secure
distributed database used to implement the digital currency Bitcoin. In the
automotive context, blockchain could be used to prevent odometer fraud."
