Block chain example like Ethereum was invented by Vitalik Buterin, a Russian-Canadian teenager who released his white paper on the subject in late 2013. Buterin first fell in love with Bitcoin and the wild group of adherents it attracted, but soon became disaected with its limits. Nineteen at the time, Buterin set out to craft a system that could do more than record static quantities. His vision was of a blockchain that could host what came to be known as smart contracts, self- executing agreements in which a chain of actions could ow from defined conditions and contingencies. The only limit to the transactions that can run on Ethereum is the imagination of the developers who build Ethereum applications.