Digital Receipt NFTs

ERC-5570FinalAccepted and stable
Users receive NFT receipts for purchases containing structured transaction data — vendor info, line items, prices, tax, serial numbers — all on-chain and parseable by financial software. Design implications: render receipt metadata as formatted document view, show vendor branding (logo, contact), display itemized list with quantities/prices/tax, provide print/export functionality, show digital signature verification. Design decisions: how receipt-like vs NFT-like to make the display, handling PII privacy (encryption indicators), whether to integrate with accounting software exports, mobile-friendly receipt viewing.
Stages: Specialized Interactions