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To: Mike Hearn <mike@plan99.net>
From: Jean-Paul Kogelman <jeanpaulkogelman@me.com>
Date: Mon, 22 Jul 2013 21:37:12 +0000 (GMT)
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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] [RFC] Proposal: Base58 encoded HD Wallet
 master seed with optional encryption
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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 <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".

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<html><body><div><br></div><div>I added a 2 byte 'weeks since 2013-01-01' field and updated the prefixes, ranges and test vectors.</div><div><br></div><div>The updated proposal lives here:</div><div><a href="https://bitcointalk.org/index.php?topic=258678">https://bitcointalk.org/index.php?topic=258678</a></div><div><br></div><div>Cheers,</div><div><br></div><div>jp<br><br>On Jul 22, 2013, at 06:14 AM, Mike Hearn &lt;mike@plan99.net&gt; wrote:<br><br></div><div><blockquote type="cite"><div class="msg-quote"><div dir="ltr">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".</div></div></blockquote></div></body></html>

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