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From: Roy Badami <roy@gnomon•org.uk>
To: Mike Hearn <mike@plan99•net>, g@gnomon•org.uk
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Payment Protocol Proposal: Invoices/Payments/Receipts
Date: Thu, 29 Nov 2012 13:53:30 -0500	[thread overview]
Message-ID: <20121129185330.GE6368@giles.gnomon.org.uk> (raw)
In-Reply-To: <CANEZrP233CytLs3PWBQ1TyuBTMv4sLGJkEMeGWYq5xRi+iLKew@mail.gmail.com>

On Thu, Nov 29, 2012 at 06:31:24PM +0100, Mike Hearn wrote:
> > I'd still like to understand the rationale for having the merchant
> > broadcast the transaction
> 
> There are several reasons for this:

[snip]

All good reasons, thanks for the explanation.

Though I still like my idea of a ValidatePurchase message that allows
a buyer to ask a merchant "would you accept this payment?" without
actually supplying a signed transaction.  Make it optional if you care
about minimising the number of round trips, e.g. for fast NFC
payments.

Having such a message reduces the extent to which you need to trust
the merchant not to spend a transaction that they've rejected.  (And
in the non-Internet connected case this is particularly useful since
the client won't have the ability to broadcast a pay-to-self
transaction.)

roy





  reply	other threads:[~2012-11-29 18:53 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-26 22:37 Gavin Andresen
2012-11-26 23:02 ` Mike Hearn
2012-11-26 23:13   ` Luke-Jr
2012-11-26 23:16     ` Mike Hearn
2012-11-26 23:19       ` Luke-Jr
2012-11-26 23:27         ` Mike Hearn
2012-11-26 23:32         ` Gregory Maxwell
2012-11-26 23:44           ` Luke-Jr
2012-11-27  0:16             ` Gregory Maxwell
2012-11-27  0:26               ` Mike Hearn
2012-11-27  0:45                 ` Rick Wesson
2012-11-27  1:09                   ` Gavin
2012-11-27  8:44                   ` Mike Hearn
2012-11-27  0:44               ` Luke-Jr
2012-11-26 23:38 ` Rick Wesson
2012-11-26 23:52 ` Jeff Garzik
2012-11-27  0:02   ` Rick Wesson
2012-11-27  0:31     ` Luke-Jr
2012-11-27  0:37       ` Rick Wesson
2012-11-27  2:16 ` Walter Stanish
2012-11-27  2:47   ` Gregory Maxwell
2012-11-27  3:16     ` Walter Stanish
2012-11-27  3:29       ` Rick Wesson
2012-11-27  3:31         ` Walter Stanish
2012-11-27  3:54           ` Rick Wesson
2012-11-27  4:17             ` Walter Stanish
2012-11-27  8:43               ` Michael Gronager
2012-11-27 10:23                 ` Mike Hearn
2012-11-27 10:42                   ` Michael Gronager
2012-11-27 11:36                     ` Pieter Wuille
2012-11-27 11:46                       ` Michael Gronager
2012-11-27 12:03                     ` Mike Hearn
2012-11-27 12:39                       ` Michael Gronager
2012-11-27 14:05                         ` Gavin Andresen
2012-11-27 14:26                           ` Gavin Andresen
2012-11-28 13:55                           ` Walter Stanish
2012-11-27 17:03 ` Andy Parkins
2012-11-27 17:14   ` Mike Hearn
2012-11-27 17:26     ` Andy Parkins
2012-11-27 18:16       ` Mike Hearn
2012-11-27 21:39         ` Gavin Andresen
2012-11-28 10:43           ` Mike Hearn
2012-11-28 12:57             ` Peter Todd
2012-11-28 14:09               ` Gavin Andresen
2012-11-28  8:33 ` Peter Todd
2012-11-28 23:36 ` Roy Badami
2012-11-29  0:30   ` Watson Ladd
2012-11-29  8:16     ` slush
2012-11-29 16:11   ` Gavin Andresen
2012-11-29 17:07     ` Roy Badami
2012-11-29 17:30       ` Gavin Andresen
2012-11-29 17:31       ` Mike Hearn
2012-11-29 18:53         ` Roy Badami [this message]
2012-12-01 19:25           ` Gavin Andresen
2012-12-03 19:35             ` Mike Koss
2012-12-03 20:59               ` Gavin Andresen
2012-12-03 21:28               ` Mike Hearn
2012-12-03 22:26                 ` Roy Badami
2012-12-03 22:34                   ` Jeff Garzik
2012-12-03 22:48                     ` Roy Badami
2012-12-16 21:15               ` Melvin Carvalho
2012-12-17  2:18                 ` Jeff Garzik
2012-12-17  8:24                   ` Melvin Carvalho
2012-12-17  9:19                     ` Mike Hearn
2012-12-17  9:31                       ` Gary Rowe
2012-12-17 11:23                       ` Melvin Carvalho
2012-12-17 17:57                         ` Gavin Andresen
2012-12-20 16:53                           ` Stephen Pair
2012-12-20 17:43                             ` Mike Hearn
2012-12-20 19:32                               ` Stephen Pair
2012-12-21 17:05                                 ` Stephen Pair
2012-12-24  0:38                                   ` Elden Tyrell
2012-12-04 17:06             ` Mike Hearn
2012-12-05 19:34               ` Gavin Andresen
2012-12-06  6:31                 ` Andreas Petersson
2012-12-06  8:53                   ` Mike Hearn
2012-12-06 16:56                     ` Gavin Andresen
2012-12-06 17:55                       ` Mike Hearn
2012-12-06 19:13                         ` Gavin Andresen
2012-12-07 10:45                           ` Mike Hearn
2012-12-07 11:01                             ` Mike Hearn
2012-12-07 16:19                               ` Gavin Andresen
2012-12-07 16:27                                 ` Mike Hearn
2012-12-06 18:13                       ` Alan Reiner
     [not found]                       ` <CALf2ePx5jS@mail.gmail.com>
2014-09-17 19:28                         ` Vezalke
2012-12-03 21:42         ` Gregory Maxwell
2012-12-23  2:33 ` Mark Friedenbach

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