Blockchain is a decentralized, distributed ledger technology that ensures data integrity and security through a combination of cryptographic principles and consensus mechanisms. Each block in the chain contains a cryptographic hash of the previous block, creating a tamper-evident and immutable record. Consensus mechanisms, such as proof-of-work or proof-of-stake, validate transactions, preventing malicious alterations. The decentralized nature of Blockchain eliminates a single point of failure, enhancing resilience, transparency, and trust in data transactions across various industries, including finance, supply chain, and healthcare.
