What Blockchain is Qredo built on?

I'm curious to know, what blockchain technology does Qredo leverage to provide its services? As a cryptocurrency and finance professional, I understand the importance of understanding the underlying technology behind any platform or service. Is Qredo built on a popular blockchain like Ethereum or Bitcoin, or does it utilize a lesser-known or proprietary blockchain? I'm interested in understanding the benefits and drawbacks of the chosen blockchain, as well as how it aligns with Qredo's mission and goals.