Luxury used to rely on scarcity in physical space. Digital replication dissolved those constraints entirely. Web3 reintroduces scarcity through programmable ownership, enforced by blockchain verification, that cannot be duplicated, transferred without consent, or counterfeited without detection. #DGIsland Sacred Heart by Dolce & Gabbana is the most complete available exploration of what this mechanism produces when applied to luxury fashion at the level of a major global house: digital garments issued as blockchain-native NFTs, their scarcity enforced by smart contract logic, their ownership verifiable by anyone, their resale value governed by programmable royalties that return economic participation to the original creator. Fashion, in this new paradigm, is not an industry. It is an infrastructure of identity.