Waiting 10 minutes for a transaction to appear in the block chain is so much more efficient than swiping a card and walking out the door
@bodskibod unless they go down? Or the transaction never gets to them in the first place? Or the customer is lying?
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@bascule not sure I understand. How customer can 'lie' without breaking security of ECDSA? -
@bodskibod umm, if the transaction never ends up in the block chain it never happened -
@bascule if *valid* tx is recvd. by merchant from network there is nothing malicious customer can do to prevent it being mined into BC... -
@bodskibod so the customer should stand around until that happens? Seems like it would work better if the customer gave them a signed txn -
@bascule my experience typically 10 seconds or so to get txn from network, in UK many merchants dial-up card systems take longer than that -
@bascule but at end of day I am not ruling out clever tricks that exploit 'zero-confirm' merchants. Matter of pricing in best guess of risks
End of conversation
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@bascule strength in numbers ;-) Merchant receiving customer signed tx from random nodes is evidence that tx is widely propagated in network -
@bascule if nodes go down, customer client will keep relaying to new nodes until *it* sees tx relayed back to itself from random nodes -
@bodskibod if the customer is honest
End of conversation
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