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General

What is Stable? Stable is a high-performance blockchain meticulously designed to become the dedicated home for USDT, poised to revolutionize how USDT moves globally. What makes Stable different from other blockchains? Stable is a high-performance network designed specifically for USDT. It provides a variety of USDT-specific features, including using USDT as the native gas token, gas-free USDT0 transfers, guaranteed blockspace, and aggregated USDT0 transfers, all supported by a highly scalable architecture.

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Technical Features

What approach does Stable use to improve scalability? Stable takes a full-stack approach and upgrades every stage of the transaction lifecycle, from the state database, execution, and consensus to USDT-specific optimizations. Is it possible for Stable to adopt DAG through a future consensus upgrade? Yes. Unlike Narwhal & Tusk, which is not directly compatible with StableBFT, Autobahn offers a PBFT-on-DAG architecture that integrates more naturally with Stable’s consensus layer. Is Stable EVM-compatible? Can dapps be ported from other EVM ecosystem? Yes. Stable is fully EVM-compatible, allowing users and developers to seamlessly interact with the chain using existing Ethereum contracts, tools, and wallets.

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USDT Features

What is the difference between USDT0 and gasUSDT? Both USDT0 and gasUSDT are pegged 1:1 to the value of USDT, but they serve different purposes. USDT0 is an ERC-20 token that follows LayerZero’s OFT (Omnichain Fungible Token) standard and serves as the core asset on the Stable network. In contrast, gasUSDT is used as the native gas token on Stable and is primarily intended for paying transaction fees. Just as ETH is used for gas and wETH for ERC-20 interactions, gasUSDT acts as the native asset on Stable, while USDT0 ensures compatibility with smart contracts. How can I get USDT0 & gasUSDT on Stable?
  • USDT0: Thanks to USDT0’s OFT standard, users can easily onboard their USDT0 holdings from other networks to Stable via LayerZero.
  • gasUSDT: Most users don’t need to directly acquire gasUSDT since the protocol handles gas token conversions automatically through Account Abstraction. However, if needed, users have two options. One is converting USDT0 to gasUSDT on Stable with unwrap function, and the other is enabling the “destination gas convert” feature to automatically receive gasUSDT during the LayerZero bridging process.
Which transactions are gas-free on Stable? USDT0 transfers are gas-free. For other transfers or smart contract interactions, users pay gas fees in USDT0 tokens, which are automatically converted to gasUSDT by the bundler and paymaster system. These transactions are enabled through EIP-7702 and Account Abstraction, which allows users to operate without needing to hold gasUSDT. Why is gasUSDT transfer restricted? To prevent accidental transfers of gasUSDT to other networks or CEXs, gasUSDT transfers are restricted on Stable. Instead, users can use USDT0 for various activities such as transfers, bridging, and DeFi. What other unique USDT-specific features does Stable have? Upcoming features include:
  • Guaranteed Blockspace, which allows institutional users to access predictable latency and cost for blockspace usage, regardless of network congestion.
  • USDT Transfer Aggregator, which efficiently bundle multiple USDT0 transfer transactions to improve throughput and reduce overhead.
  • Confidential Transfer, a feature designed to protect transaction amount privacy while remaining compliant with regulatory requirements.
What is the Stable Wallet? The Stable Wallet offers a simplified, user-friendly experience with the power of decentralized finance. It’s designed for both beginners and experienced crypto users. Newcomers can easily onboard using features like social login, while existing users can connect their current wallets without any migration. Available on web and mobile, Stable ensures secure access to digital assets anytime, anywhere.