"This might permit a [point of sale] to inform an apple iphone what blockchain address it will settle for USDC on, or the quantity to pay for, after which you can the iPhone-based wallet application could prompt the user to substantiate a payment (like with FaceID) and initiate a transaction https://tech.buzzingasia.com/news/copyright-and-blockchain-news-exploring-qualitative-coin-analysis-with-blockchainreporter/484242