What network is Oraichain?

Could you please explain what network Oraichain operates on? I'm curious to know if it's built on a popular blockchain platform like Ethereum or if it utilizes a unique network of its own. Understanding the underlying technology behind Oraichain would help me evaluate its potential and compatibility with other decentralized applications. Additionally, I'm interested in knowing if the network offers any unique features or advantages that set it apart from other blockchain networks in the market.