jmL®Selling Digital Content On-Chain with One-Time Money Button Swipe
https://www.yours.org/content/selling-digital-content-on-chain-with-one-time-money-button-swipe-b20ceef62eb0
https://whatsonchain.com/tx/89ed624952eb3f0bbd8b5a9b9d2cc1a41c1333bbcc7b40a5ed55ec0ea8a1d190