The Blockchain

Blockchain is a digital ledger that securely records transactions across multiple computers, making the data transparent and tamper-proof. Think of it as a shared, decentralized database where each “block” contains a list of transactions, linked together in chronological order to form a “chain.” Once recorded, these entries cannot be altered without consensus from the network, ensuring trust without a central authority. Blockchain underpins cryptocurrencies like Bitcoin but also has broader applications in supply chain, healthcare, and more, offering a transparent, secure way to verify and share information globally.