On Fri, Mar 28, 2014 at 12:25 PM, Andreas Schildbach <andr...@schildbach.de>wrote:
> I see the problem. > > However, I don't see how PaymentDetails can be an answer. None of the > fields (other than outputs and network) can be known in advance (at the > time of the initial payment). > > You're probably aiming for an expires field? How would you refund a > payment after expiry? Note its not your choice wether to refund a > payment -- it can be ordered by a court years after the payment happened. > Communication between the merchant and buyer would be needed in this case. I'd say that would be not unreasonable if something is to be refunded after a year or more. After all, people may have moved, bank accounts changed, even outside the bitcoin world. It should probably not be accepted to set a very low expiration time for the refund address, like <3 months, as it's as bad as not providing a refund address at all and brings back all the pre-BIP70 confusion. Wladimir
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