Swiss Central Bank, BIS, SIX Complete Test of Wholesale CBDC Trial Labelling it ‘Operationally Possible’

The move marks a turning point in CBDC infrastructure development, demonstrating to the rest of the world that such moves could prove useful to the traditional banking and financial sector.

article-image

Swiss National Bank building, Bern. Credit: Shutterstock

share
  • Switzerland’s central bank, the Bank for International Settlements and the SIX stock exchange have successfully conducted interbank transfers using a wholesale central bank digital currency
  • The effort also involved five prominent banks including Citi, UBS, Goldman Sachs, Hypothekarbank Lenzburg and Credit Suisse

The Swiss National Bank, the Bank for International Settlements’ Innovation Hub Swiss Centre and the country’s stock exchange, SIX, have completed a joint experiment to integrate a wholesale central bank digital currency (CBDC) for interbank transactions.

Dubbed Project Helvetia, the second phase of the experiment, conducted in Q4, 2021, explored the settlement of interbank, monetary policy and cross-border transactions, according to a statement Thursday.

The project was conducted using the test systems of SIX, the central bank’s real-time gross settlement system, SIX Interbank Clearing as well as core banking systems. The effort also involved five prominent banks including Citi, UBS, Goldman Sachs, Hypothekarbank Lenzburg and Credit Suisse.

The move marks a turning point in CBDC infrastructure development, demonstrating to the rest of the world that such use of distributed ledger technology may yet prove useful to the traditional banking and financial sector.

In its test, the banks and stock exchange experimented on six use cases for its wholesale CBDC including issuance, redemption, delivery-versus-payment, transfers, booking and settlement as well as intraday control and monitoring, according to a joint report.

Phase I, conducted in 2020, involved testing two approaches for settling tokenized assets in central bank money by issuing a wholesale CBDC on a tokenized platform and then linking the existing payment system to a digital ledger.

A wholesale CBDC relates to the settlement of interbank transfers and wholesale transactions. It differs from retail CBDCs that aim to digitize a nation’s currency like the one seen in China with its digital yuan.

The second phase of Project Helvetia successfully demonstrates that such integration is “operationally possible,” the central bank said in its statement. Though it emphasized the project was an experiment of “exploratory nature” and was not to be interpreted as a move by the central bank to implement a wholesale CBDC.

“We have demonstrated that innovation can be harnessed to preserve the best elements of the current financial system, including settlement in central bank money, while also potentially unlocking new benefits,” said Benoit Coeure, Head of the BIS Innovation Hub.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 24 - 26, 2026

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Unlocked by Template.png

Research

The march toward an interoperable and onchain-by-default internet depends on reliable messaging and value transfer across heterogeneous domains. Crosschain protocols now process >$1.3T in combined annual transfer volume and secure tens of millions of user interactions, yet no single design dominates.

article-image

The goal, per Santiago Santos, is to make crypto a relatable piece of tech for people who may not even understand it

article-image

Stripe stablecoin unit aims to operate under a federal charter enabling regulated stablecoin issuance and custody services

by Blockworks /
article-image

Will TradFi make crypto better or create more problems than it solves?

article-image

Subtle decisions by risk curators saved Aave from significant turmoil

article-image

The new Rootstock Institutional unit aims to connect professional investors to Bitcoin-native yield and liquidity strategies anchored in BTC’s security layer

by Blockworks /
article-image

DOJ files record civil forfeiture against more than 127,000 BTC linked to scam activity

by Blockworks /