UBS Key4 Gold allows for fractional gold investments for retail clients and includes

→ Real-time pricing
→ Deep liquidity
→ Secure physical storage
→ Optional delivery

UBS Key4 Gold is built on the UBS Gold Network, a permissioned blockchain connecting vaults, liquidity…

— ZKsync (∎, ∆) (@zksync) January 31, 2025

In a Proof-of-concept, UBS deployed smart contracts on a ZKsync Validium testnet to simulate the UBS Gold Network and replicate key functions like

→ Gold token issuance
→ Transaction processing
→ Reconciliation

The successful PoC demonstrated that ZKsync Validium mode was…

— ZKsync (∎, ∆) (@zksync) January 31, 2025

@gluk64, Co-Inventor of ZKsync, commented, “This PoC reflects UBS’ continued efforts to explore how blockchain can enhance its financial offerings and support its broader digital asset strategy. I firmly believe that the future of finance will take place onchain and ZK technology…

— ZKsync (∎, ∆) (@zksync) January 31, 2025

Alex Gluchowski, Co-Inventor of ZKsync, commented, “This PoC reflects UBS’ continued efforts to explore how blockchain can enhance its financial offerings and support its broader digital asset strategy. I firmly believe that the future of finance will take place onchain and ZK technology will be the catalyst for growth. This PoC is a testament to the fact that ZKsync is the ideal home for tokenized assets, building Web3 without compromise. We’re excited to play an integral role in the continued evolution of the space.”

Christoph Puhr, Digital Assets Lead for UBS Group, commented “This is another great example of how UBS collaborates with technology providers to stay at the forefront of innovation. Whilst tokenized securities hold a lot of potential to bring new solutions to our clients, scalability, privacy, and interoperability remain key challenges to overcome. Our PoC with ZKsync demonstrated that Layer 2 networks and ZK technology hold the potential to resolve these.”

Source: ZKsync