What network is Mantle on?

Could you please enlighten me about the network that Mantle is currently operating on? I'm curious to know more about the technological backbone that supports this cryptocurrency or financial instrument. Is it a decentralized network with its own blockchain, or is it based on an existing platform? Understanding the network infrastructure is crucial for assessing its scalability, security, and overall potential. Could you provide some insights into this matter? Thank you in advance for your clarification.