What Blockchain is RSR on?

Could you please elaborate on the blockchain network that RSR, or Reserve Rights Token, is currently operating on? I'm interested in understanding the underlying technology that powers this cryptocurrency and its role within the broader blockchain ecosystem. Specifically, I'm curious to know if RSR is based on Ethereum, a different public blockchain, or perhaps a proprietary blockchain solution. Understanding this information will help me gain a deeper insight into the token's functionality, use cases, and potential future developments.