What chain is quant on?

Could you elaborate on the blockchain network that Quant is leveraging? As a cryptocurrency professional, I'm interested in understanding the underlying technology that Quant utilizes to facilitate its cross-chain interoperability solutions. Is it a well-known blockchain like Ethereum or Bitcoin, or is it a more specialized chain tailored specifically for Quant's needs? Understanding the chain Quant is on is crucial for assessing its potential and impact on the industry.