Could you please clarify whether Zilliqa is an ERC-20 token? ERC-20 is a technical standard used for smart contracts on the Ethereum blockchain for implementing tokens. It defines a common list of rules and functions that tokens need to follow in order to work within the Ethereum ecosystem. Given that Zilliqa is a separate blockchain platform, it's crucial to understand if it utilizes ERC-20 tokens or if it has its own native token that functions independently. Could you elaborate on this matter to ensure clarity for those interested in investing or utilizing Zilliqa's technology?