What network is Quant on?

Could you elaborate on the underlying network that Quant utilizes? Understanding the technological infrastructure is crucial for assessing its capabilities and potential. I'm particularly interested in knowing if Quant is built on an existing blockchain platform, or if it has its own proprietary network. Additionally, insights into the network's scalability, security measures, and interoperability with other systems would be invaluable. Please provide a concise yet comprehensive description of the network that Quant operates on.