This chapter proposes a redefinition of architectural authorship through the integration of artificial intelligence (AI), blockchain, and the Fungible versus Non-Fungible (FnF) framework. Moving beyond the binary of AI as either a tool or replacement, it explores a model of co-authorship in which architects, AI agents, and communities collaborate within structured governance systems. The FnF framework distinguishes between immutable design components, controlled by architects and adaptable ones open to participatory or AI-led modification. Blockchain supports this by recording authorship, enforcing smart contracts, and enabling decentralised decision-making. Through a speculative case study and participant-led design experiments, the chapter demonstrates how tokenised authorship, participatory feedback, and AI-driven processes can support a continuously negotiated and transparent design methodology. Architecture, in this paradigm, is not a static artefact but an evolving system, open, accountable, and incomplete by design.