The platform serves genuinely distinct markets — a music and events platform, a football scouting network, community commerce — on infrastructure the cooperative runs itself rather than rents from a hyperscaler, deployed through the same sovereign, pull-based pipeline documented elsewhere on this map. Payment settles over a local rail suited to the markets it actually serves, not a card processor assumed by default. As a design-science artifact, the platform is not just a product; it is the live test of the thesis's central question, instrumented rather than argued: does moving ownership of the infrastructure, not only the brand, change who actually captures the value a creative economy produces? The platform's own multi-market shape — several very different products sharing one identity layer, one content plane and one deployment pipeline — is itself evidence for a specific claim the thesis makes: that the fixed cost of sovereignty is mostly paid once, at the shared layers, and each additional product built on top of it is cheaper than the one before.