6 months ago
I'm curious how they associate original purchaser with coupon on subsequent purchase. There's a unique identifier associated to the MasterCard or buyer? You must use the same card to make the purchase?
What are the privacy implications since blockchain is immutable and you can never remove the data?
I hope they don't have miners creating empty blocks... just add to the block when there is a transaction in it. So much energy is wasted creating empty blocks.
what is it