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| author | Aidan Thornton <makosoft@gmail.com> | 2011-09-14 20:52:49 +0100 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2011-09-14 19:52:55 +0000 |
| commit | 5aa7ed31827b53e26441c39e8c1e9713c5de0787 (patch) | |
| tree | 62bc6edddc45b1e609184fd99ba08bd0f73b0b72 | |
| parent | 39535073efb9213a3052c0516ac7bb73a0c1376f (diff) | |
| download | pi-bitcoindev-5aa7ed31827b53e26441c39e8c1e9713c5de0787.tar.gz pi-bitcoindev-5aa7ed31827b53e26441c39e8c1e9713c5de0787.zip | |
Re: [Bitcoin-development] Difficulty adjustment / time issues
| -rw-r--r-- | d3/c5e37487acc56242286c19fc4a4894115451cd | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/d3/c5e37487acc56242286c19fc4a4894115451cd b/d3/c5e37487acc56242286c19fc4a4894115451cd new file mode 100644 index 000000000..fc9ceb6a0 --- /dev/null +++ b/d3/c5e37487acc56242286c19fc4a4894115451cd @@ -0,0 +1,74 @@ +Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] + helo=mx.sourceforge.net) + by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) + (envelope-from <makosoft@gmail.com>) id 1R3vVv-00073V-AA + for bitcoin-development@lists.sourceforge.net; + Wed, 14 Sep 2011 19:52:55 +0000 +Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com + designates 209.85.210.175 as permitted sender) + client-ip=209.85.210.175; envelope-from=makosoft@gmail.com; + helo=mail-iy0-f175.google.com; +Received: from mail-iy0-f175.google.com ([209.85.210.175]) + by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) + (Exim 4.76) id 1R3vVu-0000h8-Mk + for bitcoin-development@lists.sourceforge.net; + Wed, 14 Sep 2011 19:52:55 +0000 +Received: by iadx2 with SMTP id x2so676565iad.34 + for <bitcoin-development@lists.sourceforge.net>; + Wed, 14 Sep 2011 12:52:49 -0700 (PDT) +MIME-Version: 1.0 +Received: by 10.231.24.96 with SMTP id u32mr331773ibb.61.1316029969445; Wed, + 14 Sep 2011 12:52:49 -0700 (PDT) +Received: by 10.231.158.195 with HTTP; Wed, 14 Sep 2011 12:52:49 -0700 (PDT) +In-Reply-To: <CABsx9T0JvnOaBy+irHtnN1zMWP8FiDTn=kn-01ky+V2MW1suTg@mail.gmail.com> +References: <CABsx9T2XLj4gZVPYodteaVCm0chR1n4WLUoSqB6+NnmWCDqHKQ@mail.gmail.com> + <4E6F83C3.9020108@jerviss.org> + <CABsx9T0JvnOaBy+irHtnN1zMWP8FiDTn=kn-01ky+V2MW1suTg@mail.gmail.com> +Date: Wed, 14 Sep 2011 20:52:49 +0100 +Message-ID: <CAB=c7TpFE_28BNpkW27kKK41w8QdaMKJ96=6H=xqonVDdTWUkA@mail.gmail.com> +From: Aidan Thornton <makosoft@gmail.com> +To: Gavin Andresen <gavinandresen@gmail.com> +Content-Type: text/plain; charset=ISO-8859-1 +X-Spam-Score: -1.6 (-) +X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. + See http://spamassassin.org/tag/ for more details. + -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for + sender-domain + 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider + (makosoft[at]gmail.com) + -0.0 SPF_PASS SPF: sender matches SPF record + -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from + author's domain + 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: 1R3vVu-0000h8-Mk +Cc: bitcoin-development@lists.sourceforge.net, kjj <kjj@jerviss.org> +Subject: Re: [Bitcoin-development] Difficulty adjustment / time issues +X-BeenThere: bitcoin-development@lists.sourceforge.net +X-Mailman-Version: 2.1.9 +Precedence: list +List-Id: <bitcoin-development.lists.sourceforge.net> +List-Unsubscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=unsubscribe> +List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development> +List-Post: <mailto:bitcoin-development@lists.sourceforge.net> +List-Help: <mailto:bitcoin-development-request@lists.sourceforge.net?subject=help> +List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=subscribe> +X-List-Received-Date: Wed, 14 Sep 2011 19:52:55 -0000 + +On Wed, Sep 14, 2011 at 3:45 PM, Gavin Andresen <gavinandresen@gmail.com> wrote: +> Modify the getwork code to build on the second-from-tip block if the +> first-on-tip block is on the discouraged list. +> +> Assuming a majority of pools/miners adopt the "discourage blocks with +> stale timestamps" rule, that should squash any incentive for cartels +> to try to start playing with difficulty-- you would have to have 50+% +> power to start, or you risk producing mostly orphan blocks. +Of course, if only a small percentage of mining power adopts this +scheme, everyone that does so will presumably be harming themselves by +doing so since they're essentially increasing the odds that the next +block they mine will become invalid... + + |