ethereum is a platform that makes it possible to use blockchain in our daily lives, and one of the most prominent features of it is the smart contract, a two-way contract without any intermediaries. While Bitcoin seeks to eliminate blockchain, the banking system, and online payment methods such as Paypal, ethereum uses blockchain to eliminate intermediaries in our lives. The elimination of intermediaries actually took place despite blockchain technology. But building blockchain-based applications required sophisticated programming, knowledge of cryptographic processes, and mathematical computation.