South Korean crypto exchange Upbit launches Ethereum L2 South Korean crypto exchange Upbit confirmed it has launched Giwa, an Ethereum layer 2 on testnet, focused on one-second block times and optimizing user experience. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Altcoins - @ September 9, 2025 4:45 am