Bitcin revolutionized finance by proving that digital assets could operate without centralized control. Yet as the ecosystem matured, a new question arose — how can Bitcoin do more than just store value? @undefined answers with its groundbreaking BTC restaking chain, transforming Bitcoin into a productive, yield-generating asset through the power .
At the heart of @undefined s architecture lies a dual-token Proof-of-Stake system, where both $BB and BBTC are used to secure the network. This mechanism unites Bitcoin’s proven reliability with DeFi’s innovation, aligning incentives for validators and users while strengthening network security and decentralization.
The $BB token fuels this ecosystem — powering governance, staking rewards, and transaction processing. With a fixed supply of 2.1 billion, it balances scarcity with sustainability. When users stake $BB or BBTC, they receive liquid staking derivatives — stBB and stBBTC — unlocking liquidity while continuing to earn yield. These assets can flow freely across DeFi protocols, amplifying capital efficiency and earning potential within the @undefined network.
Through its CeDeFi model, @undefined merges the transparency of decentralized finance with the safety of regulated environments, creating a secure gateway for Bitcoin holders to participate in advanced financial products.
In essence, $BB Coin transforms Bitcoin from a static store of value into a dynamic, yield-bearing instrument — a new phase where Bitcoin doesn’t just sit idle but actively drives the evolution of decentralized finance. The age of productive Bitcoin has officially begun.

