UBS, Sygnum Bank and PostFinance completed a blockchain study proving the technology’s efficacy for bank deposits and institutional payment infrastructure.
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Some of Switzerland’s largest banks completed a proof-of-concept (PoC) that tested blockchain technology and smart contracts for interbank payments, marking what they said was the first legally binding bank payment via a public blockchain.
Under the umbrella of the Swiss Bankers Association (SBA), UBS, PostFinance and Sygnum Bank conducted a feasibility study on blockchain-based deposit tokens and payments infrastructure, the SBA announced Tuesday.
The test initiated an offchain fiat money transfer triggered by payment instructions tokenized on the blockchain as a “deposit token.” The first use case executed a payment between bank customers of the participating banks, while the second tested an escrow-like process that exchanged deposit tokens for tokenized with automatically processed transactions.
The announcement touts the test as the first time banks have carried out a legally binding payment across institutions using bank deposits and a public blockchain.
Scalability challenges remain
The system’s underlying smart contracts enable “verifiable processes, technical security, and compliance with regulatory requirements,” said the SBA, adding that public blockchains with permissioned applications can trigger “legally binding” payments.
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While the results confirm the “feasibility” of institutional payment using blockchain technology, scalability requires “additional design adjustments and increased cooperation with other banks, infrastructure providers, and authorities,” the SBA added.
The successful study may signal more interest toward blockchain-based payment rails from large financial institutions, accelerating the convergence of traditional and .
Founded in Basel in 1912, the SBA is an umbrella organization of the Swiss banks that comprises about 265 organizations and more than 12,000 individuals.
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UBS says interoperability possible
The study signals that interoperability between traditional bank deposits and public blockchains is becoming a “reality,” said Christoph Puhr, digital assets lead at UBS Group.
“The PoC demonstrates that interoperability of bank money via public blockchains can become a reality, enabling innovation around tokenized assets.”
“This accelerates innovation in tokenized assets and makes it possible to actively shape the future of financial systems — both nationally and globally,” he added.
In the US, central banks are also experimenting with smart contracts and blockchain infrastructure.
In May, a by the US Federal Reserve Bank of New York’s Innovation Center and the Bank for International Settlements (BIS) Innovation Hub Swiss Centre, found that smart contracts could offer central banks flexible and rapid-response tools in a tokenized financial system.
“The smart contract toolkit was fast and flexible,” the BIS wrote. “In hypothetical scenarios, the central bank was able to add and change tools instantly.”
The BIS report also acknowledged that central banks will likely face infrastructure challenges, as most existing systems lack advanced use cases.
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