Did L2 Fragment Ethereum? - With Yuval Rooz, CEO of Digital Asset, Co-Founder of Canton

Public blockchains are often seen as costly databases, but their true value lies in the composability of various assets. Yuval Rooz, CEO of Digital Asset and co-founder of Canton, asserts that all assets will eventually have digital representations, facilitating efficient management of trading, settlement, collateral, and loans on-chain. He emphasizes the importance of privacy—not anonymity—in this evolution, as anonymity can conflict with regulatory requirements like KYC and AML.

Rooz raises concerns about the risks associated with "black boxes" in financial technology, particularly regarding zero-knowledge (ZK) implementations that could allow criminals to bypass checks or fraudulently mint stablecoins. He is skeptical about the reliability of ZK protocols for large-scale applications, advocating for transparency in financial transactions, especially concerning collateral for loans. From a lender's perspective, visible collateral is crucial, making opaque systems like ZK less appealing.

Canton operates as a "network of networks," inspired by the Swiss federal system, allowing for the creation of multiple Cantons that enhance scalability while providing a unified transaction experience. Smart contracts in Canton, such as Damal, enable applications to dictate their behavior to the chain. The conversation highlights the practical applications of Cantons, particularly in a newly launched privacy-focused decentralized exchange (DEX) called Temple, which contrasts with Ethereum's model by ensuring guaranteed outcomes for transactions across separate Cantons.

While Cantons share similarities with Ethereum Layer 2 (L2) solutions, Rooz argues that L2s may detract from Ethereum's main network value by diverting economic activity. The discussion also touches on the trend of stablecoin issuers creating private ledgers, which may compromise trustlessness and decentralization for real-world assets. The implications of using stablecoins like Tether are noted, particularly their popularity in decentralized environments.

The role of public blockchains is further explored, emphasizing their ability to create diverse financial products. The Canton network accommodates both centralized and decentralized sequencers, with its L1 validators being permissionless. Unlike Ethereum, which requires financial commitment for validation, Canton focuses on community contributions for super validators.

The conversation also addresses the DTCC's initiative to tokenize securities, with Canton being selected for launching tokenized US treasuries. This could enhance trading capabilities for crypto firms, allowing them to back stablecoins directly with US treasuries and improve liquidity. The potential for trading long treasuries with real-time conversion to stablecoins is highlighted, showcasing the efficiency of on-chain money market instruments.

Concerns about front-running in the market and the potential for private trading to obscure collateral movements are raised. Various applications in sectors like music, sports wagering, prediction markets, life insurance, and trade finance are acknowledged, alongside the significant opportunity in crypto that remains untapped.

The future of Canton and its relationship with other blockchains is discussed, questioning the binary classification of private versus public chains. The speakers argue against oversimplifying blockchain classifications, emphasizing the need for chains to address real business problems and generate economic activity in a multi-chain world. Both speakers express hope for a necessary shift in the crypto landscape, addressing the unsustainability of current crypto valuations lacking real economic backing.