Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 60810A20 for ; Wed, 21 Sep 2016 12:00:56 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from blaine.gmane.org (unknown [195.159.176.226]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 3858F1C8 for ; Wed, 21 Sep 2016 12:00:55 +0000 (UTC) Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1bmgCd-0006q3-LQ for bitcoin-dev@lists.linuxfoundation.org; Wed, 21 Sep 2016 14:00:39 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: bitcoin-dev@lists.linuxfoundation.org From: Andreas Schildbach Date: Wed, 21 Sep 2016 14:00:23 +0200 Message-ID: References: <7844645.RLYLWYmWtM@garp> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@blaine.gmane.org User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 In-Reply-To: <7844645.RLYLWYmWtM@garp> X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00,DKIM_ADSP_ALL, RDNS_NONE autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: Re: [bitcoin-dev] Requesting BIP assignment; Flexible Transactions. X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Sep 2016 12:00:56 -0000 Just glancing over your BIP, I wonder if we should use Protobuf. It uses this "flexible" format already and is quite compact/binary. We use Protobuf already for the payment protocol, and there is very good tool support.