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Following五大公链，一枚代币：USDai 跨链扩展至 Arbitrum、Ethereum、Plasma、Base 和 Solana
@USDai_Official 已将其美元挂钩稳定币 USDai 及其收益型衍生品 sUSDai 扩展至五个区块链网络：Arbitrum、Ethereum、Plasma、Base 和 Solana。此次扩张采用了 LayerZero 的跨链可替代代币（Omnichain Fungible Token, OFT）标准。这意味着资产在不同网络间传输时，将以原始 canonical 代币的形式存在，而非传统的包装副本。
在 OFT 标准下，代币从一个区块链转移到另一个区块链时，不会在到达目的地后变成“仿制”版本。实际上，构建为 OFT 的代币在其支持的每条链上都原生存在。当用户进行跨链发送时，源链上的代币会被销毁，并在目标链上铸造等额的新代币。这种做法保持了总供应量的一致性，并消除了历史上困扰包装代币桥接的流动性碎片化问题。
在此次发布之前，USDai 和 sUSDai 仅存在于兼容 EVM 的链上。虽然协议此前已使用 LayerZero 在该生态内部实现跨链移动，但 Solana 并不运行 EVM，因此接入 Solana 意味着完全走出了该生态系统之外。
由 AI 基础设施支撑的收益机制
sUSDai is the revenue-earning version of USDai. Holders lock in USDai and get sUSDai, thereby earning revenue. These gains come from the interest earned on the agreed loan. These loans are specifically used to purchase GPU hardware for AI data centers, thereby directly linking stablecoin's revenue to artificial intelligence computing needs.
At the launch of the project, USDai has integrated with six Solana DeFi agreements, including Jupiter Lend, Kamino, Orca, Loopscale, Exponent and Mezzanine. According to reports, in just a few hours, about US$9.39 million of bridge sUSDai arrived, and the transaction volume reached US$372,000, which far exceeded previous cycles calculated in weeks.
Currently, these two stablecoins already support cross-chain transfers on Solana, Arbitrum, Ethereum, Plasma and Base. LayerZero reports that cumulative cross-chain transfers facilitated through its OFT standards have exceeded US$2 billion. As a reference, LayerZero's OFT standard currently handles 87% of all cross-chain token transfers and manages approximately US$44 billion in assets on more than 100 blockchain networks.
