Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1V1NnJ-0001NP-76 for bitcoin-development@lists.sourceforge.net; Mon, 22 Jul 2013 21:37:25 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of me.com designates 17.172.220.237 as permitted sender) client-ip=17.172.220.237; envelope-from=jeanpaulkogelman@me.com; helo=st11p02mm-asmtp002.mac.com; Received: from st11p02mm-asmtpout002.mac.com ([17.172.220.237] helo=st11p02mm-asmtp002.mac.com) by sog-mx-1.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1V1NnH-0003vM-3r for bitcoin-development@lists.sourceforge.net; Mon, 22 Jul 2013 21:37:25 +0000 Received: from st11p02mm-spool001.mac.com ([17.172.220.246]) by st11p02mm-asmtp002.mac.com (Oracle Communications Messaging Server 7u4-27.05(7.0.4.27.4) 64bit (built Apr 23 2013)) with ESMTP id <0MQC007VTXDYFB30@st11p02mm-asmtp002.mac.com> for bitcoin-development@lists.sourceforge.net; Mon, 22 Jul 2013 21:37:16 +0000 (GMT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.10.8794,1.0.431,0.0.0000 definitions=2013-07-22_05:2013-07-22, 2013-07-22, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=6.0.2-1305010000 definitions=main-1307220169 MIME-version: 1.0 Content-type: multipart/alternative; boundary="Boundary_(ID_Vdf0BLCHqDc/Vwl8ceBu5w)" Received: from localhost ([17.172.220.223]) by st11p02mm-spool001.mac.com (Oracle Communications Messaging Server 7u4-23.01(7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTP id <0MQC004KFXDZVPA0@st11p02mm-spool001.mac.com>; Mon, 22 Jul 2013 21:37:11 +0000 (GMT) To: Mike Hearn From: Jean-Paul Kogelman Date: Mon, 22 Jul 2013 21:37:12 +0000 (GMT) X-Mailer: iCloud Mail (1R) X-Originating-IP: [159.153.138.53] Message-id: <81f77484-3ca9-40a7-a999-884260b26be5@me.com> In-reply-to: X-Spam-Score: -0.5 (/) 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 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message X-Headers-End: 1V1NnH-0003vM-3r Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] [RFC] Proposal: Base58 encoded HD Wallet master seed with optional encryption 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: Mon, 22 Jul 2013 21:37:25 -0000 --Boundary_(ID_Vdf0BLCHqDc/Vwl8ceBu5w) Content-type: text/plain; CHARSET=US-ASCII; format=flowed Content-transfer-encoding: 7BIT I added a 2 byte 'weeks since 2013-01-01' field and updated the prefixes, ranges and test vectors. The updated proposal lives here: https://bitcointalk.org/index.php?topic=258678 Cheers, jp On Jul 22, 2013, at 06:14 AM, Mike Hearn wrote: This isn't usable for SPV wallets unless it has a birthday in it. Otherwise you either need to scan the entire chain (slow) or find a fully indexed copy of the block chain (expensive, more centralised). Just add a UNIX time as an extra 4 bytes, or if you want to save a few characters then use a uint16 that represents "days since birth of this specification". --Boundary_(ID_Vdf0BLCHqDc/Vwl8ceBu5w) Content-type: multipart/related; boundary="Boundary_(ID_QavY4mEarusBdqOyItVRkw)"; type="text/html" --Boundary_(ID_QavY4mEarusBdqOyItVRkw) Content-type: text/html; CHARSET=US-ASCII Content-transfer-encoding: 7BIT

I added a 2 byte 'weeks since 2013-01-01' field and updated the prefixes, ranges and test vectors.

The updated proposal lives here:

Cheers,

jp

On Jul 22, 2013, at 06:14 AM, Mike Hearn <mike@plan99.net> wrote:

This isn't usable for SPV wallets unless it has a birthday in it. Otherwise you either need to scan the entire chain (slow) or find a fully indexed copy of the block chain (expensive, more centralised). Just add a UNIX time as an extra 4 bytes, or if you want to save a few characters then use a uint16 that represents "days since birth of this specification".
--Boundary_(ID_QavY4mEarusBdqOyItVRkw)-- --Boundary_(ID_Vdf0BLCHqDc/Vwl8ceBu5w)--