UBS Tests #zksync's Layer-2 Tech, Showing Deeper TradFi Interest in #crypto source: coindesk 🔸UBS completed a proof-of-concept of its "UBS Key4 Gold" offering on the Ethereum layer-2 network ZKsync. 🔸UBS’ Key4 Gold is one of the bank's offerings that lets its Swiss clients purchase a direct claim to physical gold. 🔸The aim of the experiment was to look for ways to scale its gold offering while preserving its privacy