American Express is on the hunt for better ways of proving when transactions occ…


American Express is on the hunt for better ways of proving when transactions occur and a new patent filing suggests the financial services giant may be looking at blockchain as part of a possible solution. In… #creditcards #americanexpress #USPTO #paymentsolutions #blockchainpatents #Original #Cryptocurrencynews #coinnewsupdate #bitcoinnewstoday #btcnews #bitcoin #ethereum



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