What network is Scrt on?

Excuse me, but could you clarify for me which blockchain network the cryptocurrency Scrt is currently operating on? I'm interested in understanding the underlying technology and infrastructure that supports its transactions and smart contract capabilities. Is it built on a popular platform like Ethereum or perhaps it utilizes a unique, proprietary blockchain solution? I'm looking for a concise yet informative answer to help me better grasp the technological foundation of Scrt.