What is Blockchain

Blockchain is a decentralized digital ledger that records transactions securely across a network of computers. Each transaction is verified, time-stamped, and linked to previous records, making data transparent and tamper-resistant. Blockchain is important because it eliminates the need for intermediaries, reduces fraud, and enhances trust between parties. It improves efficiency by enabling faster, more secure transactions and provides real-time traceability of data. Beyond cryptocurrencies, blockchain is widely used in banking, trade finance, supply chains, and compliance, supporting automation, transparency, and cost reduction in modern digital ecosystems.