From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1T0pHv-0001vY-AW for bitcoin-development@lists.sourceforge.net; Mon, 13 Aug 2012 07:42:11 +0000 X-ACL-Warn: Received: from wp303.webpack.hosteurope.de ([80.237.133.72]) by sog-mx-4.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1T0pHt-0007l4-Hs for bitcoin-development@lists.sourceforge.net; Mon, 13 Aug 2012 07:42:11 +0000 Received: from 84-72-69-53.dclient.hispeed.ch ([84.72.69.53] helo=[192.168.0.21]); authenticated by wp303.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) id 1T0pHh-0000sb-Cy; Mon, 13 Aug 2012 09:41:57 +0200 Message-ID: <5028AFBE.8070104@justmoon.de> Date: Mon, 13 Aug 2012 09:41:50 +0200 From: Stefan Thomas User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20120713 Thunderbird/14.0 MIME-Version: 1.0 To: bitcoin-development@lists.sourceforge.net X-Enigmail-Version: 1.4.3 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;moon@justmoon.de;1344843729;36578a1f; X-Spam-Score: 0.0 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. X-Headers-End: 1T0pHt-0007l4-Hs Subject: [Bitcoin-development] BIP: Custom Services 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: Mon, 13 Aug 2012 07:42:11 -0000 Hey everyone, I was working on some custom protocol extensions for Bitcoin that I wanted to experiment with and I noticed that in order to enable nodes to announce these services the only mechanism the protocol currently provides is to use one of the 64 bits of the services field. This is obviously a resource that will run out quickly if we all just help ourselves, so I set out to come up with a standardized way to announce custom protocol extensions, without using up NODE_* flags. Please kindly review my solution: https://en.bitcoin.it/wiki/User:Justmoon/BIP_Draft:_Custom_Services Thanks to Amir Taaki, Mike Hearn and Pieter Wuille who provided invaluable feedback while writing the draft. Note: Earlier drafts of this BIP contained a description of a mechanism for peer exchange for these custom services. However, since that part of the BIP was (1) just a recommendation and (2) rather complex, Amir and I agreed to split it off into a separate BIP [1] that will be refined some more and submitted later. Cheers, Stefan [1] https://en.bitcoin.it/wiki/User:Justmoon/BIP_Draft:_Custom_Service_Discovery