Bitcoin gets USDT back, twelve years later
Tether was already using Bitcoin in 2014. At the time, USDT circulated through Omni Layer, a protocol built on top of the network. The experiment did not withstand the rise of Ethereum and then Tron, which were much better suited at the time to support the mass circulation of stablecoins.
In Africa, this infrastructure is already attracting interest from several projects: BrefCrypto recently reported that three African initiatives funded by the Human Rights Foundation are working on Bitcoin, Lightning and mobile money.
The company ultimately stopped issuing new USDT on Omni in 2023. Since then, the Bitcoin landscape has changed. Lightning has expanded, payment tools have multiplied and new protocols now make it possible to issue other assets without turning the blockchain directly into an Ethereum competitor.
Tether officially announced its intention to deploy USDT with RGB as early as August 2025. The project is now taking commercial shape with Utexo, which is developing the tools that will allow wallets, exchanges and businesses to use the digital dollar across the Bitcoin ecosystem.
This return is therefore more than a simple historical nod.
RGB keeps Bitcoin from becoming Ethereum
RGB works differently from conventional tokens. On Ethereum or Tron, much of the information related to a token and its transactions lives directly on the blockchain. RGB instead relies on what developers call “client-side validation.”
In other words, Bitcoin does not store the complete accounting record for every USDT transaction. The network mainly serves as a cryptographic anchor and helps prevent the same unit from being spent twice. Detailed asset information can remain off-chain and be verified by the users involved.
This architecture reduces the amount of data added to Bitcoin and improves privacy. It also makes it possible to connect RGB assets to the Lightning Network and execute much faster transactions.
Utexo is therefore targeting USDT transfers with predictable costs, near-instant settlement and direct integration into wallets or financial platforms. The company already offers tools for exchanges, custodians and payment providers.
The implications extend beyond the technology. Stablecoins are increasingly used for international transfers and to preserve value pegged to the dollar. In Nigeria, nearly 60% of sub-Saharan Africa’s stablecoin inflows were concentrated in the country during the period studied by the IMF.
Connecting this use case to Bitcoin therefore opens up a market far larger than simple BTC-USDT trading.
Lightning could finally carry dollars
Bitcoin has long faced a paradox. Its network offers substantial security and liquidity, while digital-dollar payments mainly take place elsewhere.
Bringing USDT to RGB and Lightning is an attempt to bring those two worlds together. In theory, a wallet could hold both bitcoin and USDT, switch between them and send digital dollars quickly without leaving the Bitcoin ecosystem. For international transfers, micropayments and certain commercial settlements, the combination is particularly compelling.
However, caution is still warranted when it comes to the timeline. Utexo has already presented its infrastructure, integrated RGB Lightning into Tether’s Wallet Development Kit and announced several partners. That does not yet mean that every USDT holder automatically has access to Bitcoin-Lightning withdrawals on their preferred exchange. Adoption will depend on wallets, platforms, liquidity and the integrations that are actually deployed.
Paolo Ardoino nevertheless brought the project back into the spotlight in late September, saying that USDT was returning to Bitcoin. Discussions have even taken place between Utexo and representatives of Morgan Stanley regarding the infrastructure, although no commercial partnership between the bank and Tether has been officially announced.
The move comes as stablecoins gradually move beyond their role as simple trading tools. In South Africa, around 27 billion rand worth of USDT has already circulated across three major local platforms.
Bitcoin could now recapture some of those flows.
Tether left Omni because the infrastructure could no longer keep pace with market usage. Twelve years after its beginnings, its return through RGB and Lightning tells almost the opposite story: it is no longer USDT waiting for Bitcoin. The Bitcoin ecosystem is finally beginning to have the rails needed to accommodate a stablecoin of this scale.
