Blockchain is a decentralized digital ledger technology that records transactions across a network of computers. Each transaction, or block, is linked to the previous one, forming a chain. This creates a transparent and immutable record of transactions, making it highly secure and resistant to tampering. In the digital landscape, blockchain technology is revolutionizing various industries by enabling secure and transparent transactions, eliminating intermediaries, and providing traceability and accountability. It is widely used in cryptocurrencies like Bitcoin and Ethereum, but its applications extend to supply chain management, voting systems, healthcare, and more, promising greater efficiency, transparency, and trust in the digital realm.