TLDR:
- Tether co-led a $7.5M seed round in Utexo, formally endorsing RGB as the native path for USDT on Bitcoin
- RGB protocol enables confidential, client-side asset verification, offering fixed costs and full transaction privacy on Bitcoin.
- Utexo merges Bitcoin’s base layer, Lightning Network, and RGB into one API built for PSPs, exchanges, and HFT desks.
- Lightning Network hit a record $1.17B in monthly volume in November 2025, strengthening the case for Bitcoin-native stablecoin rails.
Tether’s USDT stablecoin is returning to Bitcoin through a new technical stack combining the RGB protocol and Lightning Network.
This marks a structural shift in how the two largest crypto assets interact. Utexo, the first implementation to merge these three layers, recently secured $7.5 million in seed funding.
Tether co-led the round alongside BigBrain VC and Portal Ventures, signaling formal endorsement of RGB as the path for native USDT on Bitcoin.
Tether’s Migration Back to Bitcoin
USDT was originally launched on Bitcoin via the Omni Layer protocol in 2014. Over time, demand for programmability pushed Tether toward Ethereum, then Tron, and eventually other blockchains.
Today, roughly 92% of total USDT supply sits on Ethereum and Tron, according to data from Allium Labs and Visa’s on-chain analytics platform.
Ethereum provides deep DeFi liquidity, while Tron handles low-cost retail transfers efficiently. However, both networks carry systemic risks for institutional players.
Gas fee volatility, reliance on custodial intermediaries, and full transaction transparency remain persistent concerns for B2B operators.
RGB protocol addresses these problems directly by enabling confidential asset issuance on Bitcoin. Asset transfer validity is verified client-side, meaning proof data moves between sender and recipient without broadcasting to the wider network. Only a small cryptographic commitment is published on-chain to prevent double-spending.
This approach keeps transaction costs fixed and preserves full privacy — two properties that Ethereum and Tron have not been able to deliver simultaneously at scale.
How Utexo Combines All Three Layers
Utexo is the first platform to integrate Bitcoin’s base layer, Lightning Network, and RGB into a single payment stack accessible through one API.
The platform targets PSPs, crypto exchanges, and high-frequency trading desks rather than retail users. Operators benefit from fixed fees denominated in USDT, instant finality through Lightning, and self-custody throughout every transaction stage.
Utexo posted on X in March: “Utexo has raised $7.5M from Tether, BigBrainVC, and Portal Ventures to bring USDT natively on Bitcoin. After more than a decade, USDT is finally coming home.” The round reflects genuine institutional appetite for Bitcoin-native stablecoin infrastructure.
Lightning Network activity further supports this direction. River Financial reported that November 2025 saw $1.17 billion in monthly volume across 5.2 million transactions — an all-time record.
Additionally, Secure Digital Markets completed a $1 million Lightning transaction on Kraken in January 2026, settling in 0.43 seconds with minimal fees.
For treasury teams and exchanges, the combination of Bitcoin’s security model, Lightning’s speed, and RGB’s privacy creates a settlement architecture previously unavailable in a single stack.
The post USDT Returns to Bitcoin: How RGB and Lightning Network Are Rebuilding Settlement Infrastructure appeared first on Blockonomi.
This articles is written by : Nermeen Nabil Khear Abdelmalak
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