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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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--001a11c2f63aa2ae0904e21975f0
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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".

--001a11c2f63aa2ae0904e21975f0
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">This isn&#39;t usable for SPV wallets unless it has a birt=
hday in it. Otherwise you either need to scan the entire chain (slow) or fi=
nd a fully indexed copy of the block chain (expensive, more centralised). J=
ust add a UNIX time as an extra 4 bytes, or if you want to save a few chara=
cters then use a uint16 that represents &quot;days since birth of this spec=
ification&quot;.</div>

--001a11c2f63aa2ae0904e21975f0--