The vision of a globally interconnected financial system powered by blockchain technology holds immense promise, particularly when considering the sheer scale of existing financial activities. Global trade, a behemoth with a $10 trillion market, represents a significant opportunity for increased efficiency and reduced friction through on-chain solutions. Furthermore, the estimated $4 trillion languishing in pre-funded accounts worldwide highlights the inefficiency of traditional systems, where vast sums of capital remain idle instead of being productively deployed. The movement of these massive financial operations onto blockchain networks has the potential to unlock unprecedented levels of efficiency, transparency, and speed in international commerce and capital allocation. However, this ambitious transition is not without its formidable challenges. One of the most significant hurdles is the current absence of comprehensive and harmonized global compliance frameworks. The regulatory landscape for blockchain and digital assets remains fragmented and often unclear, posing significant obstacles to the widespread adoption of on-chain financial solutions. Without a unified set of rules and standards recognized across jurisdictions, the risk of regulatory arbitrage and jurisdictional conflicts increases, potentially hindering the development of truly global and interoperable financial networks.Beyond the regulatory complexities, the technical intricacies of blockchain networks themselves present another layer of challenges. While blockchain technology offers numerous advantages, its inherent complexity can be a barrier to entry for both businesses and individuals. Issues such as scalability, interoperability between different blockchain protocols, and the need for robust security measures must be addressed to ensure the reliability and widespread usability of on-chain financial systems. A fragmented ecosystem, where different blockchain networks operate in isolation without the ability to seamlessly communicate and transact with each other, would severely limit the potential benefits of this technological revolution. Such silos would slow down adoption, stifle innovation, and ultimately prevent the realization of a truly interconnected global financial network. Recognizing these challenges, Huma has taken an innovative approach by pioneering an open PayFi Stack, drawing inspiration from the foundational OSI model that revolutionized the internet. Just as the OSI model provided a standardized framework for data communication, the PayFi Stack aims to provide a common language and modular structure for building financial applications on the blockchain. This initiative is crucial for fostering the development of consistent, interoperable standards that will enable seamless integration of future financial innovations, paving the way for a truly open and efficient Internet of Money.