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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
Return-Path: <luke@dashjr.org>
Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org
[172.17.192.35])
by mail.linuxfoundation.org (Postfix) with ESMTPS id 0FC1594B
for <bitcoin-dev@lists.linuxfoundation.org>;
Wed, 26 Apr 2017 18:34:05 +0000 (UTC)
X-Greylist: from auto-whitelisted by SQLgrey-1.7.6
Received: from zinan.dashjr.org (zinan.dashjr.org [192.3.11.21])
by smtp1.linuxfoundation.org (Postfix) with ESMTP id 439158C
for <bitcoin-dev@lists.linuxfoundation.org>;
Wed, 26 Apr 2017 18:34:03 +0000 (UTC)
Received: from ishibashi.localnet (unknown
[IPv6:2001:470:5:265:a45d:823b:2d27:961c])
(Authenticated sender: luke-jr)
by zinan.dashjr.org (Postfix) with ESMTPSA id AD3F538ABAA2;
Wed, 26 Apr 2017 18:33:58 +0000 (UTC)
X-Hashcash: 1:25:170426:bitcoin-dev@lists.linuxfoundation.org::8JcTbNm04w3cRr5b:uG=g
X-Hashcash: 1:25:170426:shaolinfry@protonmail.ch::lB/OEUdPzx+4AOAJ:fORp
From: Luke Dashjr <luke@dashjr.org>
To: bitcoin-dev@lists.linuxfoundation.org,
shaolinfry <shaolinfry@protonmail.ch>
Date: Wed, 26 Apr 2017 18:33:56 +0000
User-Agent: KMail/1.13.7 (Linux/4.9.16-gentoo; KDE/4.14.29; x86_64; ; )
References: <_IaaOs7JIj5n_7RkafDqIPZgjZ_RqHLKjgpEfQeGJzapvyfkYJIRWjWE6oxpoVTnsr4O8_HSg10mpHCpxdlyQFboFlqnmhgNGSUzqdp-jNY=@protonmail.ch>
In-Reply-To: <_IaaOs7JIj5n_7RkafDqIPZgjZ_RqHLKjgpEfQeGJzapvyfkYJIRWjWE6oxpoVTnsr4O8_HSg10mpHCpxdlyQFboFlqnmhgNGSUzqdp-jNY=@protonmail.ch>
X-PGP-Key-Fingerprint: E463 A93F 5F31 17EE DE6C 7316 BD02 9424 21F4 889F
X-PGP-Key-ID: BD02942421F4889F
X-PGP-Keyserver: hkp://pgp.mit.edu
MIME-Version: 1.0
Content-Type: Text/Plain;
charset="iso-8859-15"
Content-Transfer-Encoding: 7bit
Message-Id: <201704261833.57577.luke@dashjr.org>
X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED,
RP_MATCHES_RCVD autolearn=ham version=3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
smtp1.linux-foundation.org
Subject: Re: [bitcoin-dev] Draft BIP: Segwit deployment with versionbits and
guaranteed lock-in
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: Wed, 26 Apr 2017 18:34:05 -0000
See Segwit v2 thread. Maybe we can collaborate on combining these.
On Wednesday 26 April 2017 6:15:26 PM shaolinfry via bitcoin-dev wrote:
> This is a draft BIP proposal to redeploy segwit using BIP-8, from the day
> after the current BIP9 segwit times out.
>
> This BIP could be deployed long before Nov 15th 2016, for example in July
> allowing wide deployment to begin soon. The timeout (and this
> useractivation) could be set to roughly a year from then. However,
> considering around 70% of nodes upgraded to witness capability within 5-6
> months, I personally think we could reduce the time, especially
> considering how much people want segwit - but I understand the need for
> more caution in Bitcoin.
>
> Preliminary dates are deploy within a couple months, startdate Nov 16th
> 2017, BIP8 timeout July 4th 2018.
>
> <pre>
> BIP: ?
> Layer: Consensus (soft fork)
> Title: Segwit deployment with versionbits and guaranteed lock-in
> Author: Shaolin Fry <shaolinfry@protonmail.ch>
> Comments-Summary: No comments yet.
> Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-????
> Status: Draft
> Type: Standards Track
> Created: 2017-04-14
> License: BSD-3-Clause
> CC0-1.0
> </pre>
>
> ==Abstract==
>
> This document specifies a user activated soft fork for BIP141, BIP143 and
> BIP147 using versionbits with guaranteed lock-in.
>
> ==Motivation==
>
> Miners have been reluctant to signal the BIP9 segwit deployment despite a
> large portion of the Bitcoin ecosystem who want the soft fork activated.
> This BIP specifies a user activated soft fork (UASF) that deploys segwit
> again using versionbits with guaranteed lock-in on timeout if the BIP is
> not already locked-in or activated by the timeout. This ensures users have
> sufficient time to prepare and no longer require a miner supermajority,
> while still allowing for an earlier miner activated soft fork (MASF).
>
> ==Reference implementation==
>
> https://github.com/bitcoin/bitcoin/compare/master...shaolinfry:uasegwit-fla
> gday
>
> ==Specification==
>
> This deployment will set service bit (1<<5) as NODE_UAWITNESS.
>
> ==Deployment==
>
> This BIP will be deployed by BIP8 with the name "uasegwit" and using bit 2.
>
> For Bitcoin mainnet, the BIP8 starttime will be midnight 16 November 2017
> UTC (Epoch timestamp 1510790400) and BIP8 timeout will be 4 July 2018 UTC
> (Epoch timestamp 1530662400).
>
> For Bitcoin testnet, segwit is already activated so no deployment is
> specified.
>
> ==Rationale==
>
> This BIP can be deployed well in advance of the BIP8 '''starttime''' so
> that the '''timeout''' will be sufficiently far in the future to allow
> Bitcoin users to uprgade in preparation.
>
> The '''starttime''' of this BIP is after the BIP9 "segwit" timeout to
> remove compatibility issues with old nodes.
>
> ==References==
>
> https://github.com/bitcoin/bips/blob/master/bip-0008.mediawiki
>
> https://github.com/bitcoin/bips/blob/master/bip-0009.mediawiki
>
> https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki
>
> https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki
>
> https://github.com/bitcoin/bips/blob/master/bip-0147.mediawiki
>
> ==Copyright==
>
> This document is dual licensed as BSD 3-clause, and Creative Commons CC0
> 1.0 Universal.
|
