What Blockchain is Ocean Protocol on?

Could you elaborate on the underlying blockchain technology that Ocean Protocol utilizes? I'm curious to know if it's built on a popular blockchain like Ethereum or if it's leveraging a lesser-known platform. Understanding the infrastructure is crucial for assessing the potential and risks of the Ocean Protocol. Furthermore, it could indicate its scalability and interoperability with other blockchain networks. Could you provide some insights into the choice of blockchain and its advantages for Ocean Protocol?