CoFounder Signal is a data-verified founder matching and diligence network for serious builders, not hobby projects. It serves repeat operators, senior engineers, and domain experts who want a cofounder but don’t trust current “dating app for founders” platforms full of noise and low-commitment users. CoFounder Signal connects to GitHub, LinkedIn, AngelList, YC/On Deck/Bootcamps, and prior startup traces to generate a verifiable “founder graph”: - proof-of-work profiles (shipped repos, launches, contributions) - commitment score (time, capital, runway, location) - working-style compatibility and risk tolerance - warm-intro graph via shared investors, employers, and accelerators. It then facilitates structured, time-boxed trials (e.g., 4-week build sprints with pre-defined milestones) rather than endless chats. Revenue comes from screened membership fees and VC/accelerator backdoors who underwrite seats in exchange for early access to formed teams.