Hi,

Assuming something like e**Y. Peter buys something for an amount of 100BTC and has to send Fritz money. How can Fritz distinguish Peter's payment from other payments?


Peter could tell Fritz his bitcoin-addr he will use, but it is very likely that Peter won't even know his own address which will be used for the transfer, because the bitcoin client may combine coins from 5 or 10 or more different addresses out of Peter's wallet.

How can Fritz be certain of receiving coins from Peter?

Another difficulty ... Assume there is a 3rd party which is monitoring the transfer (e.g. like e**Y which can acknowledge, the transfer has been completed like p*yp*l instant payment notification)-

How could the system be sure that Peter transfered all coins to Fritz?

I would very appreciate any help I can get on this ...

All the best,
Thomas