BCn, or "Blockchain Network," refers to a decentralized digital ledger technology that records transactions across multiple computers. This ensures that the recorded data is secure, transparent, and cannot be altered retroactively. BCn is commonly associated with cryptocurrencies like Bitcoin and Ethereum, which utilize this technology to facilitate peer-to-peer transactions without the need for intermediaries. The primary components of a BCn include nodes, which are individual computers that maintain a copy of the blockchain, and smart contracts, which are self-executing contracts with the terms directly written into code. BCn has applications beyond cryptocurrencies, including supply chain management, voting systems, and digital identity verification.