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關於GIWA
GIWA is an Ethereum layer 2 built on the OP Stack by Dunamu, the parent of Upbit, using ETH for fees with one-second blocks and a 60 million gas limit, compatible with EVM tooling so Solidity contracts deploy directly; the design routes fee payment through a Paymaster so users can pay in stablecoins, and brings exchange balances and self-custody wallets into one view. It targets the friction Korean users meet in on-chain apps around fees and address management: transactions are ordered on the L2, batched and submitted to Ethereum for settlement, while fiat and stablecoin conversion runs through licensed channels.
Among exchange-backed chains it sits close to Base and BNB Chain, differentiated by issuing no token of its own, handing sequencing to Upbit and joining the self-managed tier of Optimism's OP Enterprise; in May 2026 the two signed a memorandum making GIWA the first chain under that tier. Ordering and block production rest with a single party, and in September a counterfeit network reusing its chain ID 9134 drained about 766 ETH through a fake bridge.
2025年9月，GIWA測試網（Giwa Sepolia）正式上線，該測試網建構於一秒區塊時間的基礎上，旨在提供快速、低成本的以太坊二層基礎設施。 2026年4月，團隊宣布將執行客戶端從op-geth遷移至op-reth，跟隨OP Stack生態系統的轉變，並計劃在Karst硬分叉時轉向kona-client，以確保長期節點支援。
過去六個月GIWA Chain的主要進展：2026年5月4日，Upbit母公司Dunamu在共識大會邁阿密站與Optimism基金會簽署諒解備忘錄，規劃GIWA Chain作為OP Enterprise自我管理層級的第一條鏈，由Upbit運行主要排序器，基金會提供備援與監控。自5月31日起，op-geth支援終止，節點需遷移至op-reth；故障證明程式從op-program轉移至kona-client。7月6日，測試網（Sepolia）啟動Karst硬分叉（升級19），引入Osaka EVM功能、L2CM合約管理機制、OPCMv2及CANNON_KONA爭議遊戲類型。生態系統推出Giwa Wallet、Dojang鏈上驗證、Bojagi隱私協議、UP.ID命名服務及GASOK開發者支援計畫。未來重點：主網上線、Karst主網升級、透過L2CM實現互操作性，以及擴展全球開發者生態系統。
Oh Kyung-seok — CEO of Dunamu; announced GIWA Chain in the UDC 2025 keynote.
Minseok Jung — COO of Dunamu; oversees GIWA's performance and compliance standards for institutional and retail users.