Is ocean Protocol on ETH?

Excuse me, I've been following the crypto space quite closely, and I've recently come across Ocean Protocol. I was wondering if you could clarify something for me? Could you please confirm if Ocean Protocol is indeed built on the Ethereum blockchain? It seems to have a lot of potential in the decentralized data economy, but I just want to ensure I have the technical details correct. Is it leveraging the scalability and security of Ethereum to facilitate data exchange and monetization? Your insights would be greatly appreciated.