Is GRT built on Ethereum?

I'm curious to understand the technological foundation of GRT. Could you please clarify if GRT is indeed built on the Ethereum blockchain? If so, what are the specific advantages or reasons for choosing Ethereum as its underlying platform? Additionally, does this integration offer any unique features or functionalities that distinguish GRT from other cryptocurrencies? I'm eager to learn more about the technical aspects of GRT and how it leverages the capabilities of Ethereum.