Blockchain is a decentralized and distributed digital ledger technology that securely records and verifies transactions across multiple computers or nodes . It is the underlying technology behind cryptocurrencies like Bitcoin, but its potential applications go beyond digital currencies. At its core, a blockchain consists of a chain of blocks, with each block containing a list of transactions. Each block is linked to the previous block through a cryptographic hash function, forming a chronological chain of blocks. This ensures the integrity and immutability of the data recorded on the blockchain. Key features of blockchain technology include: Decentralization : Unlike traditional centralized systems, blockchain operates in a decentralized manner, where multiple participants (nodes) hold and validate a copy of the blockchain. This decentralized nature provides transparency and resilience to the network. Transparency : The blockchain is often designed to be transparent, allowing all part...