фото показано с : bitcoints.com

Consumers might one day be able to charge their purchases on their credit cards using bitcoin as a currency.
On Tuesday, Mastercard won a patent to protect a method that would manage “fractional reserves of blockchain currency.”
In the document, published with the U.S. Patent and Trademark Office, Mastercard said that there has been “increased usage” in blockchain currencies by consumers who “value anonymity and security.”
But there are disadvantages to using digital currency, the document noted, and there’s a need to improve the storage and processing capability of such transactions.
For example, digital coin transactions still take longer: about 10 minutes for blockchain transactions versus nanoseconds for traditional payments.

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