full image - Repost: ? about using lighting to pay for product. (from Reddit.com, ? about using lighting to pay for product.)
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I've seen several videos of a people paying for goods using btc were the merchant creates a qr code for the customer to scan. My question is how do you know that the qr code you are about to scan represents the agreed amount price of product in fiat terms? Thanks to anyone that has this answer.
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