Is Lido built on Ethereum?

I'm curious, is Lido built on Ethereum? Given its popularity and widespread usage in the cryptocurrency sphere, it's a reasonable question to ask. Ethereum, as we all know, is a robust and secure platform that supports numerous decentralized applications. Its smart contract capabilities have enabled the creation of innovative projects across various industries. So, does Lido leverage this powerful technology? I'm eager to learn more about its architecture and the underlying blockchain it's built on. Understanding the technological foundation of a project is crucial in assessing its long-term viability and potential. After all, a solid infrastructure is key to supporting the growth and scalability of any crypto-based service. Could you please elaborate on this point? It would greatly assist me in gaining a deeper understanding of Lido and its place in the cryptocurrency ecosystem.