"This is able to permit a [place of sale] to inform an iPhone what blockchain handle it is going to take USDC on, or the quantity to pay, then the apple iphone-primarily based wallet app could prompt the person to confirm a payment (like with FaceID) and initiate a transaction https://inrealworld.com/news/copyright-and-blockchain-news-exploring-qualitative-coin-analysis-with-blockchainreporter/484242