The collector of Let me check with the wife receives the original physical copy of the artists’ marriage certificate, a digital image file version, as well as Marital Obligations (a dynamic NFT). The certificate has sensitive information censored for artist and family privacy. Reverse Utility As a hyperbolic flip on the expectation of utility with NFT artworks, and drawing on the concept of marital obligations, the collector will receive direction or might be expected to provide the artists with specific actions or gifts on their anniversary (July 19); this aspect of the artist-collector relationship is managed via a dynamic NFT entitled “Marital Obligations.” In the case of divorce, there will be one final obligation and no further anniversary gifts expected. The QR code/Etherscan link added to the marriage certificate leads to the MaritalObligations smart contract which is the dynamic NFT and contains an on-chain transcription of the marriage certificate.