The Block (blockchain)

A blockchain is a secure digital ledger that records transactions across many computers, ensuring transparency and preventing tampering. Imagine a chain of blocks, each containing a list of transactions. Once a block is filled and verified, it’s linked to the previous one, forming an immutable chain. This decentralized system means no single person or organization controls it, reducing fraud and increasing trust. Blockchain technology is fundamental for cryptocurrencies like Bitcoin but also has applications in supply chain management, finance, and more, providing a transparent, tamper-resistant way to record and share data.