X Change: Digital money moves from pilots to infrastructure

X Change is your weekly briefing from BetterX & AUDX on the developments shaping digital assets, stablecoins and financial infrastructure.

Over the past two weeks, several developments have pointed in the same direction: digital money is moving beyond isolated pilots and becoming more closely connected with the infrastructure of traditional finance:

• SoFi and Mastercard have put stablecoin settlement into a live card programme.
• Six Canadian banks are jointly exploring tokenised deposits.
• UK banks have completed live customer transactions using tokenised sterling deposits.
• DTCC has connected a tokenisation platform to Fund/SERV.
• the Eurosystem has launched Pontes to settle tokenised assets in central-bank money.

🏗️ Digital Financial Infrastructure

Circle launches Arc public mainnet

Circle launched the public mainnet of Arc on 16 September.

Arc is an open Layer 1 blockchain designed for financial markets, real-time money movement and on-chain financial applications. Circle says the network launched with more than 100 applications and more than 100 institutional and ecosystem builders.

Network fees are paid in USDC rather than a separate native gas token. Circle’s founding validator cohort includes organisations such as BlackRock, DTCC, ICE, Mastercard, MoneyGram, Standard Chartered, Visa and Global Payments.

Why it matters

Circle is expanding beyond issuing USDC into the infrastructure around digital money.

That matters because stablecoin adoption depends not only on the asset itself, but on the networks, payments infrastructure and financial applications that make it useful.

Arc is another example of the stablecoin market becoming more vertically integrated, with issuers increasingly building or connecting more of the financial stack around settlement, payments, trading and tokenised assets.

Source: Circle, 16 September 2026.

💳 Payments & Settlement

SoFi and Mastercard put stablecoin settlement into a live card programme

SoFi and Mastercard announced on 22 September that stablecoin settlement is now live across SoFi Bank’s debit and credit card programme.

SoFi is migrating the programme to blockchain-based settlement using SoFiUSD, with the programme expected to process more than US$25 billion in annualised volume. SoFi says transactions are already live on-chain.

SoFiUSD is issued by SoFi Bank, a U.S. nationally chartered bank, and is redeemable 1:1 for U.S. dollars. Mastercard and SoFi are also exploring additional uses including cross-border payments and remittances.

Why it matters

This is more significant than a proof of concept because the settlement model is being used in a live card programme.

The end user does not need to hold a stablecoin or interact directly with blockchain infrastructure. That makes this a useful example of how digital money can sit behind an existing financial product without changing the customer experience.

It also shows how stablecoins may increasingly be used as back-end settlement infrastructure, rather than as a product the end customer explicitly chooses to use.

Source: SoFi & Mastercard, 22 September 2026.

🏦 Banking & Digital Money

Six Canadian banks explore a shared tokenised-deposit model

Six Canadian banks are jointly exploring a Canadian-dollar digital-money solution, beginning with tokenised deposits.

The participants are BMO, CIBC, National Bank of Canada, RBC, Scotiabank and TD. The first phase is focused on moving tokenised deposits efficiently between participating financial institutions.

The banks say the initiative could later connect with other emerging digital-asset infrastructure.

Why it matters

Tokenised deposits are considerably more useful if they can move between institutions rather than remaining inside a single bank.

This initiative is therefore less about creating six separate bank tokens and more about exploring a shared and interoperable form of commercial-bank money.

That puts tokenised deposits increasingly alongside stablecoins as a potential component of digital payments and settlement infrastructure.

Source: TD Bank Group, 22 September 2026. 

🇬🇧 Banking & Digital Money

UK banks complete live customer transactions using tokenised sterling deposits

UK banks have completed the first live customer transactions under the Great British Tokenised Deposits initiative.

Participants include Barclays, HSBC UK, Lloyds Banking Group, Monzo, Nationwide, NatWest and Santander. The platform was built by Quant.

The live transactions included remortgage completions and a consumer marketplace transaction. In the remortgage use cases, funds could be locked and automatically released at completion, demonstrating conditional settlement using tokenised commercial-bank money.

Why it matters

This is an important step beyond showing that tokenised deposits can simply move faster.

The project is testing programmability: allowing money to move automatically when agreed conditions are met.

That has potential relevance across property settlement, commerce and, in time, digital-asset settlement.

Source: UK Finance, 24 September 2026.

🏗️ Tokenisation

DTCC connects tokenised funds with mainstream U.S. fund infrastructure

Oasis Pro Markets, a subsidiary of Ondo Finance, has joined DTCC’s Fund/SERV platform as its first tokenisation-platform member.

Fund/SERV is a core U.S. processing and settlement network for mutual funds and other pooled investment products. DTCC says it supports more than 85% of U.S. mutual fund transaction activity.

The integration is intended to allow Ondo’s tokenised investment products to connect with traditional fund distributors already using Fund/SERV.

Why it matters

Creating a tokenised fund is only part of the problem.

For tokenisation to scale, those products need access to the distribution and processing infrastructure already used by financial institutions.

This development begins connecting tokenised products to that existing ecosystem rather than requiring traditional distributors to build an entirely separate operating model.

Source: DTCC, 16 September 2026.

🏛️ Central Banks & Tokenisation

Eurosystem launches central-bank-money settlement for tokenised assets

The Eurosystem launched Pontes on 21 September, enabling wholesale transactions in tokenised assets to settle in central-bank money.

An initial group of banks and market-infrastructure operators has already completed onboarding, with additional participants expected to connect over time.

The ECB has also begun preparatory work to invest a small portion of its own non-monetary-policy funds in tokenised securities, with those transactions intended to settle through Pontes. The timing and operational details of those investments have not yet been finalised.

Why it matters

Tokenising the asset side of a transaction is only useful if there is a trusted way to settle the cash side.

Pontes is designed to bring central-bank money into tokenised wholesale markets, providing a settlement asset familiar to banks and financial-market participants.

That is an important piece of the institutional tokenisation puzzle.

Source: European Central Bank, 21 September 2026.

🇦🇺 What does this look like in Australian dollars?

The same infrastructure question applies to Australian dollars.

As financial markets increasingly connect with blockchain-based settlement and tokenised assets, businesses still need an efficient way to hold and move AUD-denominated value in those environments.

That’s where AUDX fits.

AUDX is Australian-dollar digital settlement infrastructure designed to enable AUD-denominated value to move across blockchain networks and digital-asset markets.

You already use Australian dollars.

AUDX simply lets you use them in more places.

From trading and digital asset settlement to payments and treasury, AUDX is designed to make the Australian dollar usable across emerging digital financial infrastructure.

AUDX is 1:1 AUD backed