In the Bitcoin ecosystem of #比特币生态 , the FB chain (Fractal Bitcoin), launched by the UniSat team as a Bitcoin sidechain, enhances performance and supports smart contracts. The Moon Cat is its star project, enabling fast and secure transactions through the FB chain. The FB chain empowers the Moon Cat, adding vitality to the ecosystem; the two are interdependent and hold promise for the future. #BRC20 $BTC