Quote:
Originally Posted by mustmuck
I don't claim any particular insight beyond what you'd come up with yourself, but my current guess would be 0 confirmation transactions for tiny transactions (chocolate bar, can of coke - a synchronized stealing of cans of coke seems unlikely to me) and a buffer account for larger ones (basically a successor to Visa/Mastercard, or I guess even the same companies).
Ya thats what I thought too but I am not sure. If a double spend costs 0 then you can consistently scam. Even if the value scammed is small, if it is easy to do it represents a credible threat.
To explain what I mean in greater detail, say you have an address containing 1 mBTC. You use this to buy something and right after, you make another transaction (a double spend) into another address of yours. Maybe its 50/50 which transaction goes through first but you still scammed half the value in equity.
I think that would mean that either you use verified addresses somehow potentially involving a third party; and/or a trust network is built (such as
http://bitcoin-otc.com/trust.php.) But either way the end result being that you need trusted addresses in order to do 0confirm transactions (that are desired to be instant and confirmed)
Last edited by Alex Wice; 04-11-2013 at 02:18 PM.