Return-Path: <sara.tucci@cea.fr>
Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org
	[172.17.192.35])
	by mail.linuxfoundation.org (Postfix) with ESMTPS id 9E5C2E82
	for <bitcoin-dev@lists.linuxfoundation.org>;
	Fri,  7 Sep 2018 13:47:22 +0000 (UTC)
X-Greylist: from auto-whitelisted by SQLgrey-1.7.6
Received: from oxalide-smtp-out.extra.cea.fr (oxalide-smtp-out.extra.cea.fr
	[132.168.224.13])
	by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 56ED1A8
	for <bitcoin-dev@lists.linuxfoundation.org>;
	Fri,  7 Sep 2018 13:47:21 +0000 (UTC)
Received: from pisaure.intra.cea.fr (pisaure.intra.cea.fr [132.166.88.21])
	by oxalide-sys.extra.cea.fr (8.14.7/8.14.7/CEAnet-Internet-out-4.0)
	with ESMTP id w87DlIaR117882; Fri, 7 Sep 2018 15:47:18 +0200
Received: from pisaure.intra.cea.fr (localhost [127.0.0.1])
	by localhost (Postfix) with SMTP id B6FC1203A3C;
	Fri,  7 Sep 2018 15:47:18 +0200 (CEST)
Received: from muguet2-smtp-out.intra.cea.fr (muguet2-smtp-out.intra.cea.fr
	[132.166.192.13])
	by pisaure.intra.cea.fr (Postfix) with ESMTP id A4C46203780;
	Fri,  7 Sep 2018 15:47:18 +0200 (CEST)
Received: from EXCAH-B3.intra.cea.fr (excah-b3.intra.cea.fr [132.166.88.88])
	by muguet2-sys.intra.cea.fr (8.14.7/8.14.7/CEAnet-Internet-out-4.0)
	with ESMTP id w87DlInY021029; Fri, 7 Sep 2018 15:47:18 +0200
Received: from EXDAG0-B3.intra.cea.fr ([fe80::d0da:1b48:7560:ee73]) by
	EXCAH-B3.intra.cea.fr ([fe80::947a:e02d:e083:3de0%10]) with mapi id
	14.03.0408.000; Fri, 7 Sep 2018 15:47:18 +0200
From: TUCCI Sara <sara.tucci@cea.fr>
To: Brandon Smith <freedom@reardencode.com>, Alejandro Ranchal Pedrosa
	<a.ranchalpedrosa@gmail.com>
Thread-Topic: [bitcoin-dev] A BIP proposal for transactions that are
	'cancellable'
Thread-Index: AQHURcK716Qxz+HBD0iRstZYICMFSKTjPCUAgABYVgCAALLLAIAAXrKAgAAxFIA=
Date: Fri, 7 Sep 2018 13:47:17 +0000
Message-ID: <683F5209-BC5E-429C-8F8F-B21333D697A1@cea.fr>
References: <3d4162e0-1f8b-0f23-85fc-9d18d4352cae@gmail.com>
	<CAAS2fgQqer6nMXXdcuoXE8UyJokuLTTLBwT+w0tH2+BA2gDu0w@mail.gmail.com>
	<20180906203244.GQ62902@hank.reardencode.com>
	<caa38174-5bd9-74dd-deaa-3feb7a10822b@gmail.com>
	<20180907125135.GR62902@hank.reardencode.com>
In-Reply-To: <20180907125135.GR62902@hank.reardencode.com>
Accept-Language: fr-FR, en-US
Content-Language: en-US
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
user-agent: Microsoft-MacOutlook/10.f.0.180709
x-originating-ip: [132.166.88.104]
x-tm-as-product-ver: SMEX-11.0.0.4179-8.100.1062-23234.003
x-tm-as-result: No--14.204700-0.000000-31
x-tm-as-user-approved-sender: Yes
x-tm-as-user-blocked-sender: No
Content-Type: text/plain; charset="utf-8"
Content-ID: <AE63FDF1F4FF284A8FEE88F56D93599C@cea.fr>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED
	autolearn=ham version=3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
	smtp1.linux-foundation.org
X-Mailman-Approved-At: Fri, 07 Sep 2018 13:53:13 +0000
Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>,
	=?utf-8?B?R8OcUkNBTiBPbmRlcg==?= <Onder.GURCAN@cea.fr>
Subject: Re: [bitcoin-dev] A BIP proposal for transactions that are
 'cancellable'
X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>,
	<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/>
List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org>
List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>,
	<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe>
X-List-Received-Date: Fri, 07 Sep 2018 13:47:22 -0000
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