1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
Return-Path: <stick@satoshilabs.com>
Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org
[172.17.192.35])
by mail.linuxfoundation.org (Postfix) with ESMTPS id 6CFBCBAF
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 7 Sep 2017 16:37:22 +0000 (UTC)
X-Greylist: from auto-whitelisted by SQLgrey-1.7.6
Received: from mail.sldev.cz (mail.sldev.cz [51.254.7.247])
by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 0239E3F9
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 7 Sep 2017 16:37:21 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
by mail.sldev.cz (Postfix) with ESMTP id 8E834E5A3;
Thu, 7 Sep 2017 16:57:34 +0000 (UTC)
X-Virus-Scanned: Debian amavisd-new at mail.sldev.cz
Received: from mail.sldev.cz ([127.0.0.1])
by localhost (mail.sl [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id SHZH48T_O0pe; Thu, 7 Sep 2017 16:57:34 +0000 (UTC)
Received: from tetra.site (unknown [10.8.8.107])
by mail.sldev.cz (Postfix) with ESMTPSA id 25465E2C6;
Thu, 7 Sep 2017 16:57:34 +0000 (UTC)
To: Kabuto Samourai <kabuto@samouraiwallet.com>
References: <0d405f5d-c0a4-bad7-b6c3-08ba4424bf17@satoshilabs.com>
<CA+_kfXLvTKwkuYmtt94OPUEPPwsEzhRoryy7srKMbLxYDxnmFA@mail.gmail.com>
<200b706a-f6ac-479a-2dce-fd66fe943949@satoshilabs.com>
<CA+_kfXL7bkV+PqR7GdQ9GdDz9AnEBoRXFCgYyJdMJQ8zuCKOEA@mail.gmail.com>
From: Pavol Rusnak <stick@satoshilabs.com>
Message-ID: <7bf726e1-f4e2-8d68-f934-671a0f2b9033@satoshilabs.com>
Date: Thu, 7 Sep 2017 18:37:19 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
Thunderbird/45.7.1
MIME-Version: 1.0
In-Reply-To: <CA+_kfXL7bkV+PqR7GdQ9GdDz9AnEBoRXFCgYyJdMJQ8zuCKOEA@mail.gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled
version=3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
smtp1.linux-foundation.org
Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Proposal: Extended serialization format for
BIP-32 wallets
X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/>
List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org>
List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe>
X-List-Received-Date: Thu, 07 Sep 2017 16:37:22 -0000
On 07/09/17 18:30, Kabuto Samourai wrote:
> Why not make this block height, rather than a timestamp?
Blockheight depends on the chain. XPUB is not tied to particular
chain/coin.
Also there are already cryptocurrencies that do not use blockchain, but
directed acyclic graph (DAG) for storing transactions. So it would not
be obvious what number to use as a blockheight.
OTOH all blockchains contain timestamps in their blocks, so we can use that.
--
Best Regards / S pozdravom,
Pavol "stick" Rusnak
CTO, SatoshiLabs
|
