Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id D7ECCB62 for ; Wed, 8 Mar 2017 03:07:32 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-it0-f52.google.com (mail-it0-f52.google.com [209.85.214.52]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 5328A13C for ; Wed, 8 Mar 2017 03:07:32 +0000 (UTC) Received: by mail-it0-f52.google.com with SMTP id m27so19265406iti.1 for ; Tue, 07 Mar 2017 19:07:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bittorrent-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=P7y7CFFqzeUQSm19JMj9/AYKOe+xVp8S4n4vAe7XftM=; b=is1Zfg0XUmUWyRYEZJ2LQwmlB94JWbGsBbaxG7cvtElSIH8REkrb1TmhXAwj8NZAQc k5rUOX20BiBW3OyPFgQrPqTLPqw2YfAwVAXa1twUJAyBRmyOrUINUKTO3hdnnP0+kzdR pr9vaPBNx3qRzwMzqWfpZ1Y4PwNcrlx8lpZiQUTxF/sp908vRJZOrHD2O+4GPREyrT0n DVfdRBLcuc5/w8Ng/OkFfkvzROjICBf5wOYFiib67FuR5zOhZ9xuGrI8X/tT/pnh+tGH A+r1b4kUlVabp1UDx854tawyx4fIc8KTbXST/LRex6Gouo46PK7HlQhLbPfZODGsrPAQ PFYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=P7y7CFFqzeUQSm19JMj9/AYKOe+xVp8S4n4vAe7XftM=; b=Q/dMCqS7fpa3/nOFzafU/EN/P9rAmAM4jNW4oAL9pfXwbrGe1Wo7W7CBS/b46+Du1r LPtCJ/nQfWqTsfKQt8t9wNbiZBMe2XR3/ikTAtYgweJEANhj+8Wx+BeYymngflM2Nfef +vpiOcdv1SBtYfxTcvaEFvgERJbOxg2AxDc51WbXQuWnto/ojJ3TxOolIBKGZYbEFFgp AAmnd6hXJqTU/7+lSi42TK7U0jA7KIkeitzJOyrAgNuXbqQjfhINu3Hk9JHucz3gvD86 +ahSQY1XYn4E7FFcuN3VD2nnLf/crcKw3Ieu2fEla8YQ1vAjNZbIN1rZbwajAaSFhC1X nsmg== X-Gm-Message-State: AMke39l68eA0Qyx5CCNdozDE3FE9XnYTrplBXLbCCYQSk1qcrcSKdk+U9vlxnv3hwtRcgvyc7mPDF0PQYSzi6QDP X-Received: by 10.36.86.83 with SMTP id o80mr12793820itb.65.1488942451690; Tue, 07 Mar 2017 19:07:31 -0800 (PST) MIME-Version: 1.0 Received: by 10.36.254.132 with HTTP; Tue, 7 Mar 2017 19:07:31 -0800 (PST) In-Reply-To: <1a7381ffeceb2209dda11928de10fa12@cock.lu> References: <_Z0S6yfN2uS1b0SYoZzU9LMo3QQ967dyn0e12ep_aXJ8cNw8wTovQWED6mKg3PH0hb2yKEG-5Cv0xH3IC2cG5rczP5qo-xLtrjJMXW1uCss=@protonmail.com> <1a7381ffeceb2209dda11928de10fa12@cock.lu> From: Bram Cohen Date: Tue, 7 Mar 2017 19:07:31 -0800 Message-ID: To: bfd@cock.lu, Bitcoin Protocol Discussion Content-Type: multipart/alternative; boundary=001a11404644ecc6b1054a2f6d22 X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM 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] A Commitment-suitable UTXO set "Balances" file data structure 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 Mar 2017 03:07:33 -0000 --001a11404644ecc6b1054a2f6d22 Content-Type: text/plain; charset=UTF-8 On Tue, Mar 7, 2017 at 5:55 PM, bfd--- via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > Having a commitment to a "balance" of an "address" (I assume you mean > P2SH/P2PKH script) is extremely expensive to create and validate, does > not scale and is not a particularly useful thing for a client to use. > The benefit of this sort of infrequent utxo commitment is that it would allow a new client to download just the contents of the utxo set and not have to get the entire blockchain history, which is much larger. --001a11404644ecc6b1054a2f6d22 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On T= ue, Mar 7, 2017 at 5:55 PM, bfd--- via bitcoin-dev <bi= tcoin-dev@lists.linuxfoundation.org> wrote:
Having a commitment to a "balance" of an "a= ddress" (I assume you mean
P2SH/P2PKH script) is extremely expensive to create and validate, does
not scale and is not a particularly useful thing for a client to use.

The benefit of this sort of infrequent utxo = commitment is that it would allow a new client to download just the content= s of the utxo set and not have to get the entire blockchain history, which = is much larger.

--001a11404644ecc6b1054a2f6d22--