Friday, 13 July 2018

American Express Files Patent for Blockchain-Powered Proof-of-Payment System This article was originally posted on Cointelegraph - an independent publication covering cryptocurrency, the blockchain, decentralized applications, the internet of finance and the next gen [...]

American Express Files Patent for Blockchain-Powered Proof-of-Payment System
This article was originally posted on Cointelegraph - an independent publication covering cryptocurrency, the blockchain, decentralized applications, the internet of finance and the next gen [...]

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