Ethereum has been debated in the bitcoin ecosystem and was criticized. In order to understand better both projects, what are the main differences between BTC and ETH regarding the blockchain composition?
Blockchain Comparison – Differences Between Bitcoin and Ethereum
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Best Answer
The short answer is that Ethereum is an application platform. Blockchain technology is useful for far more than keeping track of a currency's balances, and Ethereum lets developers build applications without having to build their own blockchain. These applications can interact with each other on the blockchain, so a library of useful functionality will gradually build up. Ethereum has shorter block times, which makes some applications more feasible. The Ethereum blockchain will transition from proof-of-work to proof-of-stake, which will affect the security of the blockchain and the value of ether.
The long answer is the full Design Rationale.