Blockchain

A blockchain is a growing list of records, called blocks, that are linked together using cryptography. A cryptocurrency, crypto-currency, or crypto is a collection of binary data which is designed to work as a medium of exchange. Ideal gifts for fans of cryptocurrencies, bitcoin, and blockchain. A cryptocurrency, crypto-currency, or crypto is a collection of binary data which is designed to work as a medium of exchange. Ideal gifts for fans of cryptocurrencies, bitcoin, and blockchain.