Blockchain enables the authentication and secure delivery of data through a distributed ledger system. At its core, the blockchain design facilitates the immutable, authentic, and decentralized delivery of information across a peer-to-peer network. In 2021, many exciting applications of blockchain are emerging to solve enterprise needs. In essence, a blockchain is a list-style data structure that links records together with cryptographic algorithms. Like a financial ledger, the blockchain records transactions and other relevant data between network parties and stores this data in a change resistant format that makes it permanently accessible for the authentication of transactions or communications.