# Welcome to O3 Layer ### Welcome This whitepaper introduces **O3 Layer**, a modular Layer 3 (L3) protocol conceptually built on Bitcoin. Leveraging Arbitrum’s Orbit Stack for execution and Avail as the data availability (DA) layer, O3 Layer explores new possibilities for scalability, composability, and decentralized infrastructure in the Bitcoin ecosystem. The document outlines the technical foundations of the proposed Layer 3 architecture, its modular design principles, token economics, security considerations, and broader ecosystem objectives. O3 Layer is designed to support experimentation with real-world use cases including decentralized applications, AI-integrated systems, and financial protocols—all while extending Bitcoin's utility beyond its traditional role. By presenting a forward-thinking approach to Bitcoin scalability, this whitepaper sets the stage for new innovations in modular blockchain infrastructure. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.o3layer.com/welcome-to-o3-layer.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.