What chain does Binance use?

Could you please elaborate on the blockchain technology that Binance utilizes for its platform? Is it built on a specific, established blockchain like Ethereum or Bitcoin, or does it have its own proprietary blockchain? Understanding the underlying technology behind Binance's operations is crucial for investors and users alike to assess its security, scalability, and potential for innovation. So, could you clarify which blockchain does Binance use and how it contributes to the platform's overall functionality?