There is so much potential in the field of Blockchain that can change the way we do everything. Let me summarize some of the things that made or “yet to make” the world amazed. The invention of Bitcoin: First decentralized cryptocurrency and implementation of Blockchain. Solved problem of double spending and eliminated the need of the third party to approve the transaction. The invention of Ethereum: It is 2nd generation Blockchain and uses SmartContracts which makes it highly programmable.