I wish CrYpTo writers understood basic cryptography.
Jpeg receipts do not make jpegs scarce.
Jpeg receipts do not give websites the authority to enforce intellectual property rights.
You can't use jpeg receipts to prove home ownership or car mileage.
I suppose you could theoretically use NFT's for a rube goldburg style concert ticket, but it won't be decentralized and offers no additional value compared to Ticket Master.