Most people who have heard the term think that the “blockchain” is only something to do with cryptocurrencies such as bitcoin, litecoin, doguecoin and others. It’s the technology that underpins digital currencies and ensures that all transactions are properly conducted and recorded. But what is stored on the blockchain need not be just a currency unit – it can be put to all manner of other interesting uses.
The blockchain is defined as “a system that’s secure without a higher authority, distributed across many strangers' computers, yet tamper-proof, and promises a mechanism for trust mediated directly between individuals.” Essentially, by providing a distributed means to guarantee and verify transactions, the blockchain offers the ultimate opportunity to cut out the middleman.
http://www.econotimes.com/Finally-interesting-uses-for-the-blockchain-that-go-beyond-bitcoin-126342
