Blockchain is a decentralized digital ledger technology that records transactions across a network of computers. Think of it as a chain of blocks, where each block contains a list of transactions and is linked to the previous block using cryptography. The key features that make blockchain revolutionary are:Decentralization - No single entity controls the networkTransparency - All transactions are visible to network participantsImmutability - Once recorded, data cannot be alteredSecurity - Cry...