Ethereum Illustrated
Ethereum is a distributed computer composed of a large number of distributed nodes, where each node can execute bytecode (the so-called smart contracts) and store the results on the blockchain. The entire network is distributed, applications can save state information, and with state information, applications can provide rich and varied services. Ethereum has no centralized nodes - third parties cannot interfere with the entire network’s operation. It can be considered a world computer that never stops running. ...