What chain is Pepe on?

Could you please clarify for me which blockchain Pepe is currently operating on? I'm trying to understand the technical aspect of this crypto project and how it interfaces with the broader blockchain ecosystem. Is Pepe based on Ethereum, Bitcoin, or perhaps another altcoin network? Could you elaborate on the specific chain Pepe utilizes and its implications for the platform's functionality and scalability? Thank you for your assistance in clarifying this matter.