Credit card giant American Express has filed a patent application for blockchain-based proof-of-payment technology. American Express isn’t an institution unfamiliar with blockchain. Throughout the past few months, we’ve seen the financial services company support the blockchain very publicly. Just recently, the company deployed Hyperledger’s blockchain technology to upgrade its Membership Rewards program, becoming the first … ContinuedThe post American Express is Eyeing Blockchain for a Proof-of-Payments System appeared first on CCN For Further Information Click on Below Button