Giwa is Upbit’s new Ethereum layer‑2 built on Optimism’s OP Stack, live on Sepolia testnet and aiming for one‑second block times to cut fees and speed transactions while retaining Ethereum
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September 11, 2025CoinOtag
CoinOtagUpbit’s Giwa Could Enable Faster, Cheaper Ethereum Transactions as a Layer-2 With One-Second Blocks
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