If Bitcoin is an old-man-blockchain who is stuck in his ways, than Ethereum is his rebellious child who believes in a more dynamic and inclusive way of how a blockchain should be. Ethereum created a more robust blockchain to Bitcoin, allowing developers to create their own digital value and agreements through smart contracts, and now hosts the majority of the altcoin market. Platform development, property ownership, and futures. The Ethereum Virtual Machine is used to monitor smart contracts by killing off any untrusted code.