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Memo 0x5efff699…a6f51b on Ethereum

Newbie On Chain: Ethereum is referred as a series of contracts defining decentralized apps. Smart contracts are used in ETH: they are collections of code (functions) and data (state) that resides at a specific address on the Ethereum blockchain. By building contracts on EVM, users can create cryptocurrency, process transaction, build new ‘ecosystem’, etc. Moreover, all traces will be permanently embedded on chain, which costs certain amount of price (GAS) in return to maintain the whole ETH system.