Blockchain. Guide for beginner developers

The book is intended to study the fundamental foundations of the blockchain and solve applied problems. From scratch, the basics of cryptography, the device of the blockchain and its main components are set out: mathematics, cryptography, games theory. The technical foundations of the most famous blockchains in the world are presented - Bitcoin and Ethereum. It was demonstrated how you can program blockchain for different use options without limiting only to cryptocurrency. The process of developing a code for managing transactions in JavaScript and Solidity languages ​​is considered, it is shown how to independently create and place smart contracts. A full development cycle of decentralized application (Dapps) has been demonstrated