$BTC Cryptocurrency works through blockchain. The blockchain system started in 1980. The word chain means chain. In simple terms, blockchain is a chain of connected states of many blocks. When transactions are made in cryptocurrencies, all transaction information is recorded i.e. transaction information is kept securely in a block. Blocks are secured by miners monitored by a powerful computer called computer mining. Those who do computer mining are called miners. Cryptocurrencies work through cryptographic techniques such as hash functions and digital signatures
