Is SAND built on Ethereum?

Could you please clarify for me if SAND is indeed constructed on the Ethereum blockchain? I've been hearing about SAND's popularity and its potential in the crypto sphere, but I'm still not entirely sure about its technical foundation. Given Ethereum's established reputation and the vast ecosystem it supports, it seems like a logical choice for SAND. However, I want to ensure that my understanding is accurate. Could you please confirm if SAND is indeed built on Ethereum, and if so, what are some of the benefits or advantages of this decision? Thank you in advance for your clarification.