From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id AFF3FD9D for ; Wed, 8 May 2019 13:11:17 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from zinan.dashjr.org (zinan.dashjr.org [192.3.11.21]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 4E1ED946 for ; Wed, 8 May 2019 13:11:17 +0000 (UTC) Received: from ishibashi.lan (adsl-98-70-227-48.gnv.bellsouth.net [98.70.227.48]) (Authenticated sender: luke-jr) by zinan.dashjr.org (Postfix) with ESMTPSA id 932F638A0C87; Wed, 8 May 2019 13:10:34 +0000 (UTC) X-Hashcash: 1:25:190508:bitcoin-dev@lists.linuxfoundation.org::kc2Pd0u8XxxGsiga:eMcdp X-Hashcash: 1:25:190508:pieter.wuille@gmail.com::XtYpDgvqLlcJ+Kjd:lkpk From: Luke Dashjr To: bitcoin-dev@lists.linuxfoundation.org Date: Wed, 8 May 2019 13:10:17 +0000 User-Agent: KMail/1.9.10 References: <201905062017.11396.luke@dashjr.org> In-Reply-To: <201905062017.11396.luke@dashjr.org> X-KMail-QuotePrefix: > MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <201905081310.20205.luke@dashjr.org> X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org X-Mailman-Approved-At: Thu, 09 May 2019 14:49:32 +0000 Cc: Pieter Wuille Subject: Re: [bitcoin-dev] Taproot proposal 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, 08 May 2019 13:11:17 -0000 On Monday 06 May 2019 20:17:09 Luke Dashjr via bitcoin-dev wrote: > Some way to sign an additional script (not committed to by the witness > program) seems like it could be a trivial addition. This would be especially useful for things like OP_CHECKBLOCKATHEIGHT: https://github.com/bitcoin/bips/blob/master/bip-0115.mediawiki