diff options
| author | Peter Vessenes <peter@coinlab.com> | 2012-07-06 10:02:47 -0700 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2012-07-06 17:03:15 +0000 |
| commit | b128b03240f447cc8651340d1102184f1335787c (patch) | |
| tree | b99e795295a343736f523eb20df8d1686bba3dcb | |
| parent | 5138e92192009aa0a8f292285d06f3ae9e046d39 (diff) | |
| download | pi-bitcoindev-b128b03240f447cc8651340d1102184f1335787c.tar.gz pi-bitcoindev-b128b03240f447cc8651340d1102184f1335787c.zip | |
Re: [Bitcoin-development] BIP 34: Block v2, Height in Coinbase
| -rw-r--r-- | cb/be6bea67484f4c0652bfd96559b379c0d03e86 | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/cb/be6bea67484f4c0652bfd96559b379c0d03e86 b/cb/be6bea67484f4c0652bfd96559b379c0d03e86 new file mode 100644 index 000000000..ea2f5b499 --- /dev/null +++ b/cb/be6bea67484f4c0652bfd96559b379c0d03e86 @@ -0,0 +1,192 @@ +Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] + helo=mx.sourceforge.net) + by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) + (envelope-from <peter@coinlab.com>) id 1SnBw3-0002oG-Cg + for bitcoin-development@lists.sourceforge.net; + Fri, 06 Jul 2012 17:03:15 +0000 +Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of coinlab.com + designates 209.85.217.175 as permitted sender) + client-ip=209.85.217.175; envelope-from=peter@coinlab.com; + helo=mail-lb0-f175.google.com; +Received: from mail-lb0-f175.google.com ([209.85.217.175]) + by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) + (Exim 4.76) id 1SnBw2-0008Pk-CJ + for bitcoin-development@lists.sourceforge.net; + Fri, 06 Jul 2012 17:03:15 +0000 +Received: by lbol5 with SMTP id l5so14561169lbo.34 + for <bitcoin-development@lists.sourceforge.net>; + Fri, 06 Jul 2012 10:03:07 -0700 (PDT) +X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=google.com; s=20120113; + h=mime-version:in-reply-to:references:from:date:message-id:subject:to + :cc:content-type:x-gm-message-state; + bh=reLWvgvM+e9glmhj5S2/SwsPAtF9wv1tYIqa6LWm4uA=; + b=JDqRdJ5M88HNziEZirKVbODY48xhUP9E3EisNnUd3NtFX2pibZeISf03C1kK790dsD + T1N9sYKfhuHI8TkfoHjhfqlrO1bVclnXqvrKzvUoBBvYW4b5QNt3jfWm9a+Aqj2Gzaa/ + EXu3HUJ3NKyxU4F1B/Uahs2PKUEavkrz26lrKbj1OmSznHqA/PofkuDN4K6JAdwx2QRW + O5HrJr4m8G+s8pKXghDcHw0yJQaXrv/08hyEIhrugvBa0IpmSSjTcPMao4QKkN/FDMcT + jjNU23UI/759iygipueqyUHPslSgCkd2qjZwzE02nIsufIOApo6HDyaqPzBfFhBink/O + fERA== +Received: by 10.112.10.198 with SMTP id k6mr14167037lbb.83.1341594187486; Fri, + 06 Jul 2012 10:03:07 -0700 (PDT) +MIME-Version: 1.0 +Received: by 10.112.11.101 with HTTP; Fri, 6 Jul 2012 10:02:47 -0700 (PDT) +In-Reply-To: <CA+8xBpdbgkzwOvyUsJYEXNMTBwuvAbFsKx2xF1s0BMPiL9n1Qw@mail.gmail.com> +References: <CA+8xBpefOgtuECJqoAtbFfPnmkFEHTL=6Uqf=kb7NB=fnV863Q@mail.gmail.com> + <CAMGNxUsZQMN+M4cR8nMhNmJAAnT2ZSPjrMHV0BetdiMmj453sA@mail.gmail.com> + <CA+8xBpdbgkzwOvyUsJYEXNMTBwuvAbFsKx2xF1s0BMPiL9n1Qw@mail.gmail.com> +From: Peter Vessenes <peter@coinlab.com> +Date: Fri, 6 Jul 2012 10:02:47 -0700 +Message-ID: <CAMGNxUvN5fCuXsSp7a8UCgQoqMHKZPFsHkemJr7_5GSWZ0X-fA@mail.gmail.com> +To: Jeff Garzik <jgarzik@exmulti.com> +Content-Type: multipart/alternative; boundary=e0cb4efe3502fa582b04c42c3c19 +X-Gm-Message-State: ALoCoQn6LDN5s11jYxVm8pBUIt3NaDC3V2X1LEswwIvIwSnhRcEjv50xvDguDvpYDYKkeEVMTw09 +X-Spam-Score: -0.5 (/) +X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. + See http://spamassassin.org/tag/ for more details. + -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for + sender-domain + -0.0 SPF_PASS SPF: sender matches SPF record + 0.0 HTML_IMAGE_ONLY_32 BODY: HTML: images with 2800-3200 bytes of words + 1.0 HTML_MESSAGE BODY: HTML included in message +X-Headers-End: 1SnBw2-0008Pk-CJ +Cc: Bitcoin Development <bitcoin-development@lists.sourceforge.net> +Subject: Re: [Bitcoin-development] BIP 34: Block v2, Height in Coinbase +X-BeenThere: bitcoin-development@lists.sourceforge.net +X-Mailman-Version: 2.1.9 +Precedence: list +List-Id: <bitcoin-development.lists.sourceforge.net> +List-Unsubscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=unsubscribe> +List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development> +List-Post: <mailto:bitcoin-development@lists.sourceforge.net> +List-Help: <mailto:bitcoin-development-request@lists.sourceforge.net?subject=help> +List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=subscribe> +X-List-Received-Date: Fri, 06 Jul 2012 17:03:15 -0000 + +--e0cb4efe3502fa582b04c42c3c19 +Content-Type: text/plain; charset=ISO-8859-1 + +On Fri, Jul 6, 2012 at 9:49 AM, Jeff Garzik <jgarzik@exmulti.com> wrote: + +> On Fri, Jul 6, 2012 at 12:45 PM, Peter Vessenes <peter@coinlab.com> wrote: +> > The proposal is simple, and it's a small change for miners, I imagine. +> > +> > My question is: why? +> > +> > I worry about stuffing too many requirements on the coinbase. I suppose +> > the coinbase is easily extendible if we run out of bytes, but I think I'd +> > like to see some more discussion / good / bad type cases for making this +> > change. What do we get over just the prev_hash by doing this? +> +> With the existing setup (sans height in coinbase), you might not have +> unique transactions, with all that entails. +> +> Yes, I've experienced that myself, actually. + + +> > Anyway, some background would be great; if I missed it, I'm happy to go +> > read up, but I didn't see any links on the wiki. +> +> Gavin wrote some notes on upgrades and BIP16 lessons-learned at +> https://gist.github.com/2355445 +> +> This is a super coherent and excellent writeup. I may come back with more +thoughts, I want to let it percolate. Thanks! + +> -- +> Jeff Garzik +> exMULTI, Inc. +> jgarzik@exmulti.com +> + + + +-- +------------------------------ + +[image: CoinLab Logo]PETER VESSENES +CEO + +*peter@coinlab.com * / 206.486.6856 / SKYPE: vessenes +811 FIRST AVENUE / SUITE 480 / SEATTLE, WA 98104 + +--e0cb4efe3502fa582b04c42c3c19 +Content-Type: text/html; charset=ISO-8859-1 +Content-Transfer-Encoding: quoted-printable + +<br><br><div class=3D"gmail_quote">On Fri, Jul 6, 2012 at 9:49 AM, Jeff Gar= +zik <span dir=3D"ltr"><<a href=3D"mailto:jgarzik@exmulti.com" target=3D"= +_blank">jgarzik@exmulti.com</a>></span> wrote:<br><blockquote class=3D"g= +mail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-l= +eft:1ex"> + +<div class=3D"im">On Fri, Jul 6, 2012 at 12:45 PM, Peter Vessenes <<a hr= +ef=3D"mailto:peter@coinlab.com">peter@coinlab.com</a>> wrote:<br> +> The proposal is simple, and it's a small change for miners, I imag= +ine.<br> +><br> +> My question is: why?<br> +><br> +> I worry about stuffing too many requirements on the coinbase. I suppos= +e<br> +> the coinbase is easily extendible if we run out of bytes, but I think = +I'd<br> +> like to see some more discussion / good / bad type cases for making th= +is<br> +> change. What do we get over just the prev_hash by doing this?<br> +<br> +</div>With the existing setup (sans height in coinbase), you might not have= +<br> +unique transactions, with all that entails.<br> +<div class=3D"im"><br></div></blockquote><div>Yes, I've experienced tha= +t myself, actually.</div><div>=A0</div><blockquote class=3D"gmail_quote" st= +yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div = +class=3D"im"> + + +> Anyway, some background would be great; if I missed it, I'm happy = +to go<br> +> read up, but I didn't see any links on the wiki.<br> +<br> +</div>Gavin wrote some notes on upgrades and BIP16 lessons-learned at<br> +<a href=3D"https://gist.github.com/2355445" target=3D"_blank">https://gist.= +github.com/2355445</a><br> +<div class=3D"HOEnZb"><div class=3D"h5"><br></div></div></blockquote><div>T= +his is a super coherent and excellent writeup. I may come back with more th= +oughts, I want to let it percolate. Thanks!=A0</div><blockquote class=3D"gm= +ail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-le= +ft:1ex"> + +<div class=3D"HOEnZb"><div class=3D"h5"> +--<br> +Jeff Garzik<br> +exMULTI, Inc.<br> +<a href=3D"mailto:jgarzik@exmulti.com">jgarzik@exmulti.com</a><br> +</div></div></blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>= +<hr style=3D"font-family:Times;font-size:medium;border-right-width:0px;bord= +er-bottom-width:0px;border-left-width:0px;border-top-style:solid;border-top= +-color:rgb(204,204,204);margin:10px 0px"> + +<p style=3D"font-size:medium;font-family:Helvetica,sans-serif;line-height:1= +em"><span style=3D"color:rgb(50,90,135);text-transform:uppercase"><img src= +=3D"http://coinlab.com/static/images/email_logo.jpg" align=3D"right" alt=3D= +"CoinLab Logo" width=3D"130">PETER=A0<span style=3D"font-weight:bold">VESSE= +NES=A0</span><br> + +<span style=3D"color:rgb(96,58,23);font-size:0.8em">CEO</span></span></p><p= + style=3D"font-size:medium;font-family:Helvetica,sans-serif;line-height:1em= +"><span style=3D"color:rgb(96,58,23);font-size:0.9em"><strong><a href=3D"ma= +ilto:peter@coinlab.com" style=3D"text-decoration:none;color:rgb(96,58,23)" = +target=3D"_blank">peter@coinlab.com</a>=A0</strong>=A0/=A0=A0206.486.6856 = +=A0/=A0<span style=3D"font-size:0.7em;text-transform:uppercase">SKYPE:</spa= +n>=A0vessenes=A0</span><br> + +<span style=3D"color:rgb(96,58,23);font-size:0.7em;text-transform:uppercase= +">811 FIRST AVENUE =A0/=A0 SUITE 480 =A0/=A0 SEATTLE, WA 98104</span></p><b= +r> + +--e0cb4efe3502fa582b04c42c3c19-- + + |