Coinbase rewards users through Coinbase Earn by watching educational videos and completing quizzes, awarding crypto to their wallets. Miners receive bitcoins as rewards for creating new blocks on the blockchain, which is done through a transaction. Satoshi Nakamoto preprogrammed Bitcoin’s code to release these mining rewards at set intervals, ensuring a decentralized and secure network. The original code, which established the rules for mining rewards, can be examined by those interested in the technical details of Bitcoin’s early development.