The Bitcoin network secures trillions in value each year, but most of its DeFi activity still relies on wrapped assets and isolated liquidity. Today that changes. USDT0, the omnichain deployment of Tether’s USDT, is now live on Rootstock, the EVM sidechain anchored to Bitcoin’s proof-of-work. The integration pairs the world’s most trusted stablecoin with the world’s most battle-tested consensus, giving developers a native dollar rail that moves anywhere liquidity is needed

Rootstock is a Bitcoin sidechain that aims to bring smart contract functionality and powerful new capabilities to the Bitcoin network. The network combines Bitcoin’s unrivaled security with full EVM compatibility, letting developers deploy Solidity contracts within a flexible, battle-tested environment.

Rootstock’s infrastructure stack includes:

• EVM Compatibility: Solidity contracts deploy out of the box, so builders can port existing dApps or spin up new ones with familiar tooling.

• Two-Way BTC Peg: Users can move native bitcoin (rBTC) into Rootstock through a permissionless bridge known as the PowPeg which is secured by Bitcoin’s hashrate, turning dormant BTC into productive collateral for lending, trading, and payments.

• RIF Services Layer: Bitcoin scaling token and tools including integrated identity, oracle, and payment rails that make it simple to connect offchain data, route cross-chain messages, and issue stable payments. RIF also powers the RootstockCollective DAO which offers a decentralized grants program to Bitcoin builders and provides BTC and RIF token rewards to participants.

• Low Fees and Fast Finality: Gas is paid in RBTC at a fraction of comparable Layer-1 costs, and block times average 25 seconds—fast enough for real-time trading yet predictable for enterprises.

Numerous BTCFi mainstays including Sovryn, Tropykus, Midas and Mynt already use Rootstock to deliver Bitcoin-backed loans, perpetuals, and yield opportunities. What has been missing is a unified, dollar-denominated asset that travels as freely across Rootstock’s markets and supported chains. Enter USDT0.

With LayerZero connectivity previously live on Rootstock, users were already benefiting from direct access to thousands of applications on leading blockchains. However, until now stablecoin liquidity remained fragmented, which limited the depth and reach of Rootstock’s diverse markets and offerings. USDT0 solves this by providing a unified, omnichain deployment of USDT, fully backed 1:1 by USDT on Ethereum and accessible natively on Rootstock via LayerZero’s OFT (Omnichain Fungible Token) standard.

As a result, this integration helps Rootstock unlock the full potential of BTCFi at scale. With USDT0, the Rootstock community now benefits from:

• Easier On-Ramps: By removing the need for intermediary bridges or wrapper contracts, USDT0 reduces complexity and costs for users and builders alike.

• Unified Liquidity. USDT0 moves natively between different apps and chains, making capital accessible wherever it is needed.

• Improved Trading Experience: DEXs on Rootstock gain access to deeper USDT liquidity, reducing slippage and improving trade efficiency.

• Composable Infrastructure: dApps on Rootstock can now integrate USDT0 like any standard ERC-20, with the added benefit of automatic, omnichain functionality.

In short, Rootstock has now adopted the world’s most widely used stablecoin in its most liquid, capital-efficient form. And since USDT0 uses the OFT standard, this integration allows Rootstock to expand effortlessly into other emerging ecosystems down the line.

"With USDT0 and Rootstock, BTCfi takes a leap forward, unlocking the stablecoin infrastructure developers need to build real, lasting financial applications on Bitcoin." — Ben Sanders, Chief Growth Officer at RoostockLabs.

Rootstock’s builders have long envisioned a digital economy that combines Bitcoin’s security with smart-contract flexibility. USDT0 helps advance this vision by introducing deep, omnichain dollar liquidity that can flow wherever users are most active. Together, we are enabling new financial use cases and laying the groundwork for a universal liquidity source that meets the needs of modern onchain finance.

For traders, tighter spreads and deeper books appear the moment USDT0 seeds local DEX pairs. For builders, a single stablecoin contract replaces multiple wrapped versions and simplifies treasury management. And for the Bitcoin ecosystem at large, Rootstock plus USDT0 creates a direct corridor between the world’s reserve asset and the world’s most adopted stablecoin, without compromising security or composability.

Visit usdt0.to/transfer to deploy USDT0 on Rootstock today.