Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 09F3DF0B for ; Sat, 10 Oct 2015 21:41:27 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id EE407AF for ; Sat, 10 Oct 2015 21:41:25 +0000 (UTC) Received: by wicge5 with SMTP id ge5so108864350wic.0 for ; Sat, 10 Oct 2015 14:41:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:date:message-id:subject:from:to:content-type; bh=tT8kEz/m5GS3gZ+rb5A/Vg5y4zwPq2y2k+4OQkLh0nU=; b=OOn/IHeY7ScrwgYqtC9NyABhx5U84VyggMzBl3IiyPs0Refy8mRltrIWB9K/4FwzDW uVvuDOYncZhOPypbeVK557hURn866CCHyEW7N4npraQM3gbWmBRM3MF1Y2wo2phtATqm pckxSG47NH1V8FJOZZGN1WMi2rUXKd+ToHztZHSfWjWM22X0h7JcfViF/7W17mw/GmFz ME98wYnjByd/sOgD0UZy65WKDLRy2+OV2s9T0EicBNrnnhy+H5V6j5e+ERf2wMYkNqZO LnBtQQZq8GGzxsGJdbzHMsGx7H6Bbbql5BbSJGygCB8gyqPhcGkmGtCuWp7XAnbrVrbu nF+Q== MIME-Version: 1.0 X-Received: by 10.180.96.166 with SMTP id dt6mr6650346wib.38.1444513284415; Sat, 10 Oct 2015 14:41:24 -0700 (PDT) Sender: dscotese@gmail.com Received: by 10.27.211.132 with HTTP; Sat, 10 Oct 2015 14:41:24 -0700 (PDT) Date: Sat, 10 Oct 2015 14:41:24 -0700 X-Google-Sender-Auth: S0pGqvzKVHwxZdItO5KCqVbkGfM Message-ID: From: Dave Scotese To: Bitcoin Dev Content-Type: multipart/alternative; boundary=f46d0442727230ead60521c6f53f X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: [bitcoin-dev] Masked bits and isStandard X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Oct 2015 21:41:27 -0000 --f46d0442727230ead60521c6f53f Content-Type: text/plain; charset=UTF-8 Thanks again. The description of bits 16..29 as "can take any value" suggests to me an improvement for isStandard: if any bits "can take any value" without affecting the script then they must be off for the script to pass isStandard. If I understand it correctly, this requirement will serve as a backup to future uses of those bits if such uses are deployed as soft forks. I'm sorry if my suggestion reflects a poor understanding of isStandard, but I offer it as evidence on whether the mechanism is as well understood as it should be, since we use soft forks. If I have misunderstood, feel free to educate me with a reply. Thanks! Notplato On Oct 10, 2015, at 8:22 AM, G1lius Caesar via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: bits 16..29 are masked off and can take any value. -- I like to provide some work at no charge to prove my value. Do you need a techie? I own Litmocracy and Meme Racing (in alpha). I'm the webmaster for The Voluntaryist which now accepts Bitcoin. I also code for The Dollar Vigilante . "He ought to find it more profitable to play by the rules" - Satoshi Nakamoto --f46d0442727230ead60521c6f53f Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Thanks= again.=C2=A0 The description of bits 16..29 as "can take any value&qu= ot; suggests to me an improvement for isStandard: if any bits "can tak= e any value" without affecting the script then they must be off for th= e script to pass isStandard.

If= I understand it correctly, this requirement will serve as a backup to futu= re uses of those bits if such uses are deployed as soft forks.=C2=A0=

I'm sorry if my suggestion refle= cts a poor understanding of isStandard, but I offer it as evidence on wheth= er the mechanism is as well understood as it should be, since we use soft f= orks.=C2=A0 If I have misunderstood, feel free to educate me with a reply.<= /span>

Thanks!
Notplato


<= /span>
On Oct 10, 2015, at 8:22 AM, G1lius Caesar via bitcoin-dev <bitcoin-dev@lists.linuxfo= undation.org> wrote:

bits 16..29 are masked off and can take any value.
--
I like to provide some work at no charge to prove= my value. Do you need a techie?=C2=A0
I own Litmocracy and Meme Racing (in alpha).
I'm the w= ebmaster for The = Voluntaryist which now accepts Bitcoin.
I also code for The Dollar Vigilante.
= "He ought to find it more profitable to play by the rules" - Sato= shi Nakamoto

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