BitcoinOS (BOS) is a Layer-2 operating system for Bitcoin, designed to make the Bitcoin network programmable, scalable, and interoperable. Using technologies like BitSNARK and Grail, BOS introduces Bitcoin rollups, trustless bridging, and programmable tokens for true Bitcoin-native DeFi. It unifies fragmented blockchains through ZK-powered “SLAM nodes,” enabling seamless cross-chain activity secured by Bitcoin.