American Express launches blockchain travel seal function

According to Coinjie.com, on September 15, American Express launched "Travel Stamps" based on Ethereum in its new travel app. Users can get a stamp every time they use American Express card. These stamps are ERC-721 NFTs, cast and stored on the Coinbase network. They have no transaction value and currently do not earn points or circulation. American Express said the move aims to enrich users’ travel record experience and may expand cooperation opportunities in the future. The app also adds several new travel tools and upgraded Centurion Lounge services.