The emergence of Fintech 3.0 is paving the way for a new financial system built on blockchain technology, characterized by instant payments, digital asset control, and regulatory clarity following the GENIUS Act. With the success of stablecoins and the potential for tokenization of various assets, there is a significant opportunity for startups to innovate and build onchain solutions. YC and Coinbase Ventures are eager to support and fund projects that leverage this evolving infrastructure.