Wanbao Card makes digital memory possible as an encrypted collectible. Any article, video, or anything you like with a URL can be transformed into an encrypted favorites card by "MarbleCards". These collectibles are called Mastercard cards. This is a method of creating and trading unique digital cards based on URLs, where each webpage can only use one person's MarbleCards once.Wanbao Card is based on the ERC721 standard, so each URL can only be MarbleCards once. When you buy a MarbleCards, you can be confident that it is unique. You can save money, share or trade.Each card has a unique and beautiful pattern, which is generated through algorithms during MarbleCards. The pattern is influenced by the content of the MarbleCards web page. Anyone can create a Mastercard card, but once it is completed, it can be auctioned through Dutch style auctions within a limited time frame. If someone else purchases this card in the auction, the person initiating the auction will receive a portion of the proceeds from the transaction....