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Arc主网更新：Circle的USDC链今日正式上线

2026-09-16 16:17:27

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Arc main network update: What will Circle's new chain unlock?

Circle is about to embark on a major initiative. This Arc mainnet update covers the launch of the Arc public mainnet on September 16, 2026, a blockchain built specifically to run financial markets, stablecoin payments, and AI-driven economic activities. From day one, its underlying design has revolved around the USDC. Moreover, this is not launched in an empty room; dozens of projects are ready to be deployed only when the network is open.

What is Arc?

Arc is described as the "economic operating system of the Internet" and is an open Layer 1 network built specifically for financial markets, real-time capital flows and proxy economic activities. Instead of using typical native tokens as transaction fees, Gas fees on Arc are paid in USDC, allowing businesses and institutions to have predictable, stablecoin-denominated costs rather than fees that vary sharply with fluctuating token prices. In addition, the network uses sub-second transaction finality, which means that transactions and payments can be settled almost instantly without having to wait for a long confirmation window.

Prior to this public launch, Arc was already running on a private main network, with more than 100 ecosystems and institutional investors actively participating in testing actual use cases, covering automated payments, tokenized asset issuance, global foreign exchange and institutional chain markets.

What happens on launch day?

根据 Arc 自身的公告，9 月 16 日标志着网络从私有主网转向公共主网，Circle 利用这一时刻发布了围绕该平台构建的完整产品套件。本次 Arc 主网更新包括用于常见链上工作流的组合式应用框架、用于构建应用程序和智能合约的 AI 驱动工具、用于部署和管理代币化现实世界资产的工具体系，以及旨在帮助开发者、用户甚至自主代理导航生态系统的界面。该网络将由创始验证者群体提供安全保障，并得到在上线前已整合的更广泛机构和建设者群体的支持。

已在 Arc 上构建的生态系统

此次发布特别引人注目的地方在于，已有大量项目准备与之同步上线。根据生态系统追踪，数十个项目横跨几个不同的类别：

类别知名项目 Launchpads Ortxa, Aka.fund, Zyora, Lifffun, Minara.fun, Synthra 基础设施 QuikNode, RedStone, Goldsky, Chainlink, dRPC, Alchemy, Chronicle Labs, Blockscout, Circle 交易 Synthra, Tower, Hibachi, Sidoor, 01.exchange, EdgeX DeFi Curve, Aerodrome, Morpho, Fluid, Maple, Aave, Superform, Uniswap, Unifww 钱包 Ledger, SafePal, Zerion, Blockradar, DFNS, Rainbow, Rabby Wallet, Exodus

其中一些项目因其对 Arc 特定设计的处理方式而脱颖而出。Aka.fund 完全跳过了传统的债券曲线 Launchpad 模式，直接将代币注入 Uniswap 流动性池，并通过 Uniswap v4 钩子处理费用分配。UnitFlow Finance 正在构建一个完整的 DeFi 堆栈，将多种 AMM 版本、无代码代币工厂和跨链 USDC 转账整合在一起。Tower 则致力于解决当一条链吸引多个 DEX 时出现的流动性碎片化问题，它通过扫描 Arc 交易所的流动性，并根据深度、滑点和成本路由交换交易。

机构视角：外汇与现实世界交易

本次 Arc 主网更新中更具雄心的举措之一，是将传统机构金融直接引入链上。Hibachi 正在构建一个结合场外中央限价订单簿以实现快速执行和零知识证明的外汇现货及永续合约场所，旨在为机构级外汇交易提供一个真正的链上家园。在更面向零售端的一侧，Sidoor 正在为日常 Arc 用户构建一个一站式交易终端，将代币发现、热门市场、投资组合跟踪、桥接和 Launchpad 整合到一个单一界面中。

为何这次发布不仅仅是一条新链

这里的真正意义不在于上线的应用数量，而在于 Arc 试图从结构上证明什么。单一的结算层被要求同时支持去中心化的加密活动和机构金融市场，这是大多数区块链难以同时做好的事情。这种组合之所以重要，原因如下：

基于 USDC 的 Gas 费消除了企业因传统金融习惯而产生的主要不可预测因素。
亚秒级最终性对于涉及外汇或实时结算的任何用例来说都是一项有意义的升级。
与 Circle 现有基础设施的深度集成为 Arc 提供了通往已在大规模使用的稳定币通道的直接桥梁。

结论

本次 Arc 主网更新标志着稳定币原生区块链基础设施的一个真正重要的时刻。在经历了数月与超过 100 个建设者的私有测试后，Circle 将于 9 月 16 日开启 Arc 的公共主网。随着涵盖 Launchpads、基础设施、交易、DeFi 和钱包的项目已定位好在上架当天同步上线，并且明确推动在同一网络上服务机构金融和开放加密活动，Arc 的公共首发有望成为今年最受关注的区块链发布之一。

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