To: Kabuto Samourai <kabuto@samouraiwallet.com>,
	Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
References: <0d405f5d-c0a4-bad7-b6c3-08ba4424bf17@satoshilabs.com>
	<CA+_kfXLvTKwkuYmtt94OPUEPPwsEzhRoryy7srKMbLxYDxnmFA@mail.gmail.com>
From: Pavol Rusnak <stick@satoshilabs.com>
Message-ID: <200b706a-f6ac-479a-2dce-fd66fe943949@satoshilabs.com>
Date: Thu, 7 Sep 2017 18:25:30 +0200
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Subject: Re: [bitcoin-dev] Proposal: Extended serialization format for
 BIP-32 wallets
Precedence: list

On 07/09/17 05:52, Kabuto Samourai wrote:
> The birthday field is interesting. Could you provide some motivation for
> its inclusion?

Birthday is something SPV wallet developers have been wanting for years.
It helps them with the initial scan, so SPV wallet does not have to
download every block in the blockchain, but only the ones after birthday.

> Could you also add some test vectors?

I will add some test vectors, when we agree this is the way to go.

> There are a few minor grammar / spelling errors, but we can nitpick
> those after this goes to the pull request stage on bitcoin/bips.

+1

-- 
Best Regards / S pozdravom,

Pavol "stick" Rusnak
CTO, SatoshiLabs