Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Z3TbI-00055y-H0 for bitcoin-development@lists.sourceforge.net; Fri, 12 Jun 2015 18:22:44 +0000 X-ACL-Warn: Received: from resqmta-ch2-09v.sys.comcast.net ([69.252.207.41]) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:AES128-SHA:128) (Exim 4.76) id 1Z3TbH-00044E-Ig for bitcoin-development@lists.sourceforge.net; Fri, 12 Jun 2015 18:22:44 +0000 Received: from resomta-ch2-06v.sys.comcast.net ([69.252.207.102]) by resqmta-ch2-09v.sys.comcast.net with comcast id fWMX1q0062D5gil01WNe3t; Fri, 12 Jun 2015 18:22:38 +0000 Received: from crushinator.localnet ([IPv6:2601:186:c000:825e:e9f4:8901:87c7:24a0]) by resomta-ch2-06v.sys.comcast.net with comcast id fWNd1q0034eLRLv01WNdyj; Fri, 12 Jun 2015 18:22:38 +0000 From: Matt Whitlock To: bitcoin-development@lists.sourceforge.net Date: Fri, 12 Jun 2015 14:22:36 -0400 Message-ID: <23144512.HX7dfatEFr@crushinator> User-Agent: KMail/4.14.9 (Linux/3.18.12-gentoo; KDE/4.14.9; x86_64; ; ) In-Reply-To: <20150612181153.GB19199@muck> References: <20150612181153.GB19199@muck> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Spam-Score: 0.0 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [69.252.207.41 listed in list.dnswl.org] 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1Z3TbH-00044E-Ig Subject: Re: [Bitcoin-development] User vote in blocksize through fees X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Jun 2015 18:22:44 -0000 Why should miners only be able to vote for "double the limit" or "halve" the limit? If you're going to use bits, I think you need to use two bits: 0 0 = no preference ("wildcard" vote) 0 1 = vote for the limit to remain the same 1 0 = vote for the limit to be halved 1 1 = vote for the limit to be doubled User transactions would follow the same usage. In particular, a user vote of "0 0" (no preference) could be included in a block casting any vote, but a block voting "0 0" (no preference) could only contain transactions voting "0 0" as well. Incidentally, I love this idea, as it addresses a concern I immediately had with Jeff's proposal, which is that it hands control exclusively to the miners. And your proposal here fixes that shortcoming in a economically powerful way: miners lose out on fees if they don't represent the wishes of the users. On Friday, 12 June 2015, at 2:11 pm, Peter Todd wrote: > Jeff Garzik recently proposed that the upper blocksize limit be removed > entirely, with a "soft" limit being enforced via miner vote, recorded by > hashing power. > > This mechanism within the protocol for users to have any influence over > the miner vote. We can add that back by providing a way for transactions > themselves to set a flag determining whether or not they can be included > in a block casting a specific vote. > > We can simplify Garzik's vote to say that one of the nVersion bits > either votes for the blocksize to be increased, or decreased, by some > fixed ratio (e.g 2x or 1/2x) the next interval. Then we can use a > nVersion bit in transactions themselves, also voting for an increase or > decrease. Transactions may only be included in blocks with an > indentical vote, thus providing miners with a monetary incentive via > fees to vote according to user wishes. > > Of course, to cast a "don't care" vote we can either define an > additional bit, or sign the transaction with both versions. Equally we > can even have different versions with different fees, broadcast via a > mechanism such as replace-by-fee. > > > See also John Dillon's proposal for proof-of-stake blocksize voting: > > https://www.mail-archive.com/bitcoin-development@lists.sourceforge.net/msg02323.html > > -- > 'peter'[:-1]@petertodd.org > 0000000000000000127ab1d576dc851f374424f1269c4700ccaba2c42d97e778