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<p>Uniswap Labs has launched Unichain, a decentralized Layer 2 (L2) solution designed to enhance decentralized finance (DeFi) by improving speed, lowering costs, and ensuring seamless cross-chain liquidity. This move is part of a broader effort to advance Ethereum’s scaling roadmap while maintaining its decentralization.</p> 
<p>Over the past six years, the Uniswap Protocol has achieved significant milestones, including $2.4 trillion in trading volume and almost half a billion trades. However, Ethereum-based DeFi protocols still face obstacles related to high transaction costs and slow processing speeds. <a href="https://www.unichain.org/" rel="nofollow noopener" target="_blank">Unichain</a> addresses these issues with three core improvements: reducing costs, speeding up transactions, and facilitating better cross-chain liquidity.</p> 
<h3 id="low-cost-transactions-with-decentralization">Low-Cost Transactions with Decentralization</h3> 
<p>Unichain is designed to leverage Ethereum’s existing decentralization while significantly reducing transaction fees—by approximately 95% compared to Ethereum Layer 1 (L1). This is possible because Ethereum’s rollup-centric roadmap, initiated earlier this year, provides cheaper data to L2s. Unichain takes this a step further by moving execution to L2, allowing for lower costs while retaining Ethereum’s core principles of decentralization.</p> 
<p>In the near future, Unichain will introduce a decentralized validation network, enabling nodes to verify blocks, adding an extra layer of security and reducing the chances of conflicting transactions.</p> 
<h3 id="faster-transactions">Faster Transactions</h3> 
<p>Speed is critical for DeFi’s next phase of growth. Unichain will launch with one-second block times, and will eventually include sub-second (250ms) block confirmations, providing users with near-instant transactions. This speed is enabled by a block-building system developed in collaboration with Flashbots, which uses a trusted execution environment (TEE). The TEE not only enhances transaction speed but also increases transparency and reduces transaction failures.</p> 
<h3 id="seamless-multi-chain-swapping">Seamless Multi-Chain Swapping</h3> 
<p>As Ethereum’s L2 ecosystem expands, liquidity fragmentation becomes a growing challenge. Unichain aims to solve this by enabling seamless, cross-chain asset swapping through the Optimism Superchain framework. By partnering with OP Labs, Unichain will support single-block cross-chain message passing. For chains outside the Superchain, initiatives like ERC-7683 will improve interoperability.</p> 
<p>In addition to these infrastructure advancements, Unichain plans to integrate cross-chain swapping into the Uniswap Interface and Uniswap Wallet, simplifying user experiences across chains.</p> 
<h3 id="a-modular-open-source-approach">A Modular, Open Source Approach</h3> 
<p>Unichain is built to be modular, allowing for future extensions such as additional decentralization features or improved user experiences. The block builder and node software are open source, available under the MIT license for use by other projects. <a href="https://crypto.ro/en/cryptocurrencies/uniswap/">Uniswap Lab</a>s will continue contributing to the Ethereum scaling effort through its work with the OP Stack.</p> 
<p>Unichain’s testnet is live now, with the mainnet expected later this year. Developers can start building on Unichain using the Unichain Builder Toolkit, with support from the Uniswap Foundation.</p>

Uniswap Labs Announces Unichain: A Superchain L2 Built for DeFi Scaling

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