USDT on Bitcoin: Tether-Backed Utexo Opens Testing for Exchanges

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• Utexo will launch its Bitcoin-based USDT publicly on November 28.
• Exchanges, wallets and trading firms are already testing it on Bitcoin Signet.
• Each token is backed by USDT0 locked on Arbitrum, not by new Tether reserves.
• Lightning Network support is planned for early 2027.

Utexo, a Bitcoin infrastructure company whose seed round was co-led by Tether, will open its Bitcoin-based USDT to the public on November 28, 2026. The company set the date as it opened early access to Utexo Mint, where professional operators can now mint, transfer and redeem the token on Bitcoin’s Signet test network, The Defiant reported. The token is a bridged version of USDT rather than a new issuance by Tether, and the rollout returns the largest dollar stablecoin to the chain where it first appeared in 2014.

Only Exchanges and Trading Desks Get In Before November 28

Utexo is onboarding exchanges, wallets, market makers, OTC desks and trading firms, and retail users have no direct minting access during the test phase. Approved operators test three functions on Signet: issuing USDT on Bitcoin, sending it confidentially and redeeming it. The November release will reach users through partner wallets and exchanges, with Lightning Network support scheduled for the first quarter of 2027.

The date is a company target. Utexo has not published a full list of launch partners, so the number of platforms that will be live on day one is still unknown.

Every Bitcoin USDT Unit Sits on USDT0 Locked in Arbitrum

The token works on a lock-and-mint basis. According to Utexo’s technical documentation, an operator locks USDT0, the cross-chain version of USDT, in a bridge contract on Arbitrum, and the system issues the same amount on Bitcoin. USDT sent from Ethereum, Tron, Polygon PoS or Plasma is first converted to USDT0 through LayerZero and routed to Arbitrum. Burning the Bitcoin-side tokens releases the collateral.

This design ties Bitcoin settlement to an Ethereum layer-2 network. Holders depend on the bridge contract, the signing infrastructure and the collateral on Arbitrum. Utexo says minting runs inside Trusted Execution Environments on AWS Nitro Enclaves, isolated environments that the server operator cannot alter, and each mint is signed only after the Arbitrum deposit is final. The company also reports an audit by Oxorio, but the full report has not been published on its product page.

RGB Hides Amounts From the Public, Not From Compliance Teams

RGB anchors assets to Bitcoin but keeps most transaction data off the blockchain. Under its client-side validation model, sender and receiver store and verify the transfer data themselves, and Bitcoin records only a cryptographic commitment. Tether said in August 2025 that this model makes USDT transfers on Bitcoin faster, cheaper and more private than storing token data on-chain.

Outside observers cannot see amounts or counterparties. That does not make the system anonymous. Utexo reportedly works with Crystal Intelligence on anti-money-laundering monitoring, and co-founder Viktor Ihnatiuk has described a mechanism that blocks flagged funds from being redeemed through participating services. For OTC desks moving large blocks, the appeal is that trade sizes stay hidden from competitors while compliance controls remain in place.

From Omni in 2014 to Lightning in 2027

USDT started on Bitcoin’s Omni Layer, then moved to Ethereum and Tron as lower fees pulled activity away. Tether ended Omni support in August 2023, citing lack of demand, and two years later announced plans to return through RGB.

A 0.1% Fee and a 100 USDT Cap for Unverified Accounts

Utexo closed a $7.5 million seed round in March, co-led by Tether, Big Brain Holdings and Portal Ventures, with Franklin Templeton, Maven11 Capital, Fulgur Ventures and Flow Traders among the participants. Tether CEO Paolo Ardoino said at the time that Bitcoin had always been central to the company’s long-term plans for USDT.

The company sells infrastructure, not a consumer app. Exchanges and wallets connect through an API instead of building their own RGB and Lightning systems, and Utexo charges for minting. A recent update to its developer documentation lists a launch commission of 0.1% plus a 0.5 USDT base fee, before network and LayerZero costs. A $100,000 mint would cost about $100.50. Unverified accounts can mint up to 100 USDT.

450 Interested Firms, No Named Partners and Tron’s Head Start

Tron carries a large share of global USDT transfers and has years of wallet and exchange integrations.

BTC-Backed Loans and Direct Swaps Depend on Launch Liquidity

If enough USDT reaches Bitcoin, holders could swap BTC for dollars without leaving the network or using wrapped Bitcoin on Ethereum. Utexo also plans lending products that accept native BTC as collateral for USDT loans. Neither service has a published start date, rate or liquidity figure, and the company has not said how much USDT it expects to circulate on Bitcoin at launch. For exchanges, joining means handling RGB data, connecting to the mint and redemption flow and accepting exposure to the Arbitrum collateral.

Utexo is also using pricing to pull in early volume. In a post on HackerNoon, Ihnatiuk wrote that end users of partner wallets will pay no fees on USDT settlements during the launch phase as part of an incentive program. Utexo has not said how long that period will last, and what wallets charge once it ends will decide whether payment flows stay on Bitcoin or drift back to Tron.