Blockchain

Blockchain is a decentralized digital ledger technology that records transactions across multiple computers in a way that the registered transactions cannot be altered retroactively. This system enables secure, transparent, and tamper-proof record-keeping. Each block in the blockchain contains a list of transactions, a timestamp, and a cryptographic hash of the previous block, linking them together in a chain. This structure ensures that once data has been added to the blockchain, it becomes nearly impossible to change or erase it without altering all subsequent blocks and the consensus of the network.Blockchain technology is commonly associated with cryptocurrencies, such as Bitcoin, but its applications extend to various fields, including supply chain management, healthcare, and voting systems. It facilitates trust and accountability among participants, as all users have access to the same information simultaneously, reducing the need for intermediaries.