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
|
Return-Path: <kohli@ctemplar.com>
Received: from smtp3.osuosl.org (smtp3.osuosl.org [IPv6:2605:bc80:3010::136])
by lists.linuxfoundation.org (Postfix) with ESMTP id 7A02DC000E
for <bitcoin-dev@lists.linuxfoundation.org>;
Sun, 29 Aug 2021 06:03:08 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
by smtp3.osuosl.org (Postfix) with ESMTP id 54B7B60678
for <bitcoin-dev@lists.linuxfoundation.org>;
Sun, 29 Aug 2021 06:03:08 +0000 (UTC)
X-Virus-Scanned: amavisd-new at osuosl.org
X-Spam-Flag: NO
X-Spam-Score: 0.6
X-Spam-Level:
X-Spam-Status: No, score=0.6 tagged_above=-999 required=5 tests=[BAYES_50=0.8,
DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1,
DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001]
autolearn=ham autolearn_force=no
Authentication-Results: smtp3.osuosl.org (amavisd-new);
dkim=pass (1024-bit key) header.d=ctemplar.com
Received: from smtp3.osuosl.org ([127.0.0.1])
by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id Z0GV5yfgoi0U
for <bitcoin-dev@lists.linuxfoundation.org>;
Sun, 29 Aug 2021 06:03:04 +0000 (UTC)
X-Greylist: delayed 00:05:15 by SQLgrey-1.8.0
Received: from mail.ctemplar.com (mail.ctemplar.com [82.221.128.126])
by smtp3.osuosl.org (Postfix) with ESMTPS id F15DE60674
for <bitcoin-dev@lists.linuxfoundation.org>;
Sun, 29 Aug 2021 06:03:03 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
d=ctemplar.com; s=ctemplar; h=Message-Id:Date:To:From:Subject:
Content-Transfer-Encoding:MIME-Version:Content-Type:Sender:Reply-To:Cc:
Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:
Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:
List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;
bh=jm6WceQ+G9TQ4iaatqYKowu87HTpqcVHaCIqcZ78laI=; b=b7BN4MqXWNWZkL4lCbwu+Baci
QcvnJEDsSLXOejPLWh3J7IuMxsL+D5OUVtKi5BNvYGfQXgKtjJgfz/KQBNdXZKfi1cChPZFQI3LOX
GgqExouOlud5wQdFCVOKc2O4p4W5LCcvaVDtKmfwfdbrkbd6MEyTOy8sz4UO2/2NHW1gk=;
Received: from ip6-localhost ([::1] helo=mail.ctemplar.com)
by mail.ctemplar.com with esmtp (envelope-from <kohli@ctemplar.com>)
id 1mKDp9-0003bn-6v
for bitcoin-dev@lists.linuxfoundation.org; Sun, 29 Aug 2021 05:57:43 +0000
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
From: "pool2win" <kohli@ctemplar.com>
To: bitcoin-dev@lists.linuxfoundation.org
Date: Sun, 29 Aug 2021 05:57:43 -0000
Message-Id: <0aff157f62ea4abba71df4f87eb54880-kohli@ctemplar.com>
Feedback-ID: a29obGlAY3RlbXBsYXIuY29t:ctemplar
X-Mailman-Approved-At: Sun, 29 Aug 2021 08:02:12 +0000
Subject: [bitcoin-dev] Braidpool: Proposal for a decentralised mining pool
X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
X-Mailman-Version: 2.1.15
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: Sun, 29 Aug 2021 06:03:08 -0000
We have been working on a peer to peer mining pool that overcomes the
problems faced by P2Pool and enables building a futures market for
hashrate.
The proposal can be found here:
https://github.com/pool2win/braidpool/raw/main/proposal/proposal.pdf
The key features of the pool are:
1. Lower variance for smaller miners, even when large miners join
the pool.
2. Miners build their own blocks, just like in P2Pool.
3. Payouts require a constant size blockspace, independent of the
number of miners in the pool.
4. Provide building blocks for enabling a futures market of hash
rates.
Braidpool: Decentralised Mining Pool for Bitcoin
Abstract. Bitcoin P2Pool's usage has steadily declined over the years,
negatively impacting bitcoin's decentralisation. The variance in
earnings for miners increases with total hashrate participating in
P2Pool, and payouts require a linearly increasing block space with the
number of miners participating in the pool. We present a solution that
uses a DAG of shares replicated at all miners. The DAG is then used to
compute rewards for miners. Rewards are paid out using one-way payment
channels by an anonymous hub communicating with the miners using Tor's
hidden services. Using the payment channels construction, neither the
hub nor the miners can cheat.
Full proposal at
https://github.com/pool2win/braidpool/raw/main/proposal/proposal.pdf
Details on trading hashrate are here:
https://pool2win.github.io/braidpool/2021/08/18/deliver-hashrate-to-market-makers.html
@pool2win
|