From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1XwZY3-0003H3-5a for bitcoin-development@lists.sourceforge.net; Thu, 04 Dec 2014 16:46:35 +0000 Received-SPF: pass (sog-mx-3.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.213.54 as permitted sender) client-ip=209.85.213.54; envelope-from=gavinandresen@gmail.com; helo=mail-yh0-f54.google.com; Received: from mail-yh0-f54.google.com ([209.85.213.54]) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1XwZY2-0005k2-0P for bitcoin-development@lists.sourceforge.net; Thu, 04 Dec 2014 16:46:35 +0000 Received: by mail-yh0-f54.google.com with SMTP id 29so9011917yhl.41 for ; Thu, 04 Dec 2014 08:46:28 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.236.228.195 with SMTP id f63mr14042474yhq.165.1417711588546; Thu, 04 Dec 2014 08:46:28 -0800 (PST) Received: by 10.170.209.68 with HTTP; Thu, 4 Dec 2014 08:46:28 -0800 (PST) In-Reply-To: <201412041542.44207.luke@dashjr.org> References: <201412041542.44207.luke@dashjr.org> Date: Thu, 4 Dec 2014 11:46:28 -0500 Message-ID: From: Gavin Andresen To: Luke Dashjr Content-Type: multipart/alternative; boundary=001a11c3be32a11f05050966b36f X-Spam-Score: 0.0 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (gavinandresen[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.6 URIBL_SBL Contains an URL's NS IP listed in the SBL blocklist [URIs: dashjr.org] X-Headers-End: 1XwZY2-0005k2-0P Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] Serialised P2SH HD chains X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Dec 2014 16:46:35 -0000 --001a11c3be32a11f05050966b36f Content-Type: text/plain; charset=ISO-8859-1 On Thu, Dec 4, 2014 at 10:42 AM, Luke Dashjr wrote: > Is anyone working on a serialisation format to convey P2SH HD chains? For example, > to give someone who wants to make recurring payments a single token that > can be used to generate many P2SH addresses paying to a multisig script. Seems like the wrong approach to me, because in practice you really need a reasonable expiration date or some way of determining that whatever you are paying is still around (I still get random transactions to the Bitcoin Faucet's old addresses). See the discussion from January about extending the payment protocol for recurring transactions: https://www.mail-archive.com/bitcoin-development@lists.sourceforge.net/msg03823.html "Give them a single token" == "give them a recurring PaymentRequest" in my mind. Or maybe "Give them a URL where they can fetch PaymentRequests whenever they need to make a payment" or maybe "Give them an array of PaymentRequests for the next X days/months/years of payments." -- -- Gavin Andresen --001a11c3be32a11f05050966b36f Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On T= hu, Dec 4, 2014 at 10:42 AM, Luke Dashjr <luke@dashjr.org> wro= te:
Is anyone working on a serialisation format to conv= ey P2SH HD chains?=A0For=A0example, to give someone who wants to make recurring payments a single = token=A0= that can be used to generate many P2SH addresses paying to a multisig scrip= t.

Seems like the wrong approach to = me, because in practice you really need
a reasonable expiration d= ate or some way of determining that whatever you are paying
is st= ill around (I still get random transactions to the Bitcoin Faucet's old= addresses).

See the discussion from January about= extending the payment protocol for
recurring transactions:
=

&qu= ot;Give them a single token" =3D=3D "give them a recurring Paymen= tRequest" in my mind. Or maybe "Give them a URL where they can fe= tch PaymentRequests whenever they need to make a payment" or maybe &qu= ot;Give them an array of PaymentRequests for the next X days/months/years o= f payments."

--
--
Gavin Andresen

--001a11c3be32a11f05050966b36f--