Get exclusive analysis and cryptocurrency insights on Hacked.com for just $39 per month.Financial services giant Mastercard has won a patent for a system that uses blockchain technology to authenticate coupons. The patent, granted by the US Patent & Trademark Office (USPTO) on May 31, outlines a way for merchants to cut down on coupon fraud [...]
source https://blocktimum.com/mastercard-wins-patent-for-blockchain-coupon-authentication-system-2/
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