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From: Greg Sanders <gsanders87@gmail.com>
Date: Tue, 4 Apr 2017 11:44:40 -0400
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To: Tom Zander <tomz@freedommail.ch>,
Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
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Subject: Re: [bitcoin-dev] BIP draft: Extended block header hardfork
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That's BIP30, he linked BIP34:
https://github.com/bitcoin/bitcoin/blob/master/src/validation.cpp#L3004
On Tue, Apr 4, 2017 at 11:32 AM, Tom Zander via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:
> Can you tell me where it is enforced?
>
> The only place I found was here;
> https://github.com/bitcoin/bitcoin/blob/master/src/validation.cpp#L1793
>
> which doesn=E2=80=99t enforce it, all that code does is check that the tx=
id is
> unknown or fully spent.
> And since the below idea from Russel would change the txid, it would seem
> no
> full client would reject this.
>
> Maybe its in a BIP, but I can=E2=80=99t find it in the code.
>
> On Tuesday, 4 April 2017 16:59:12 CEST James Hilliard wrote:
> > It is a consensus rule
> > https://github.com/bitcoin/bips/blob/master/bip-0034.mediawiki
> >
> > On Tue, Apr 4, 2017 at 6:47 AM, Tom Zander via bitcoin-dev
> >
> > <bitcoin-dev@lists.linuxfoundation.org> wrote:
> > > On Sunday, 2 April 2017 22:39:13 CEST Russell O'Connor via bitcoin-de=
v
> > >
> > > wrote:
> > >> Someone told me a while back that it would be more natural if we mo=
ve
> > >> the
> > >>
> > >> nHeight from the coinbase script to the coinbase locktime. Have you
> > >> considered doing this?
> > >
> > > That change would not be a consensus change and thus free to make any
> > > day.
>
>
> --
> Tom Zander
> Blog: https://zander.github.io
> Vlog: https://vimeo.com/channels/tomscryptochannel
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
--001a11370ed4a2e0fb054c59281a
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<div dir=3D"ltr">That's BIP30, he linked BIP34:=C2=A0<a href=3D"https:/=
/github.com/bitcoin/bitcoin/blob/master/src/validation.cpp#L3004">https://g=
ithub.com/bitcoin/bitcoin/blob/master/src/validation.cpp#L3004</a></div><di=
v class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Tue, Apr 4, 2017 =
at 11:32 AM, Tom Zander via bitcoin-dev <span dir=3D"ltr"><<a href=3D"ma=
ilto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank">bitcoin-dev@l=
ists.linuxfoundation.org</a>></span> wrote:<br><blockquote class=3D"gmai=
l_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left=
:1ex">Can you tell me where it is enforced?<br>
<br>
The only place I found was here;<br>
<a href=3D"https://github.com/bitcoin/bitcoin/blob/master/src/validation.cp=
p#L1793" rel=3D"noreferrer" target=3D"_blank">https://github.com/bitcoin/<w=
br>bitcoin/blob/master/src/<wbr>validation.cpp#L1793</a><br>
<br>
which doesn=E2=80=99t enforce it, all that code does is check that the txid=
is<br>
unknown or fully spent.<br>
And since the below idea from Russel would change the txid, it would seem n=
o<br>
full client would reject this.<br>
<br>
Maybe its in a BIP, but I can=E2=80=99t find it in the code.<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
On Tuesday, 4 April 2017 16:59:12 CEST James Hilliard wrote:<br>
> It is a consensus rule<br>
> <a href=3D"https://github.com/bitcoin/bips/blob/master/bip-0034.mediaw=
iki" rel=3D"noreferrer" target=3D"_blank">https://github.com/bitcoin/<wbr>b=
ips/blob/master/bip-0034.<wbr>mediawiki</a><br>
><br>
> On Tue, Apr 4, 2017 at 6:47 AM, Tom Zander via bitcoin-dev<br>
><br>
> <<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org">bitcoin-d=
ev@lists.<wbr>linuxfoundation.org</a>> wrote:<br>
> > On Sunday, 2 April 2017 22:39:13 CEST Russell O'Connor via bi=
tcoin-dev<br>
> ><br>
> > wrote:<br>
> >>=C2=A0 Someone told me a while back that it would be more natu=
ral if we move<br>
> >>=C2=A0 the<br>
> >><br>
> >> nHeight from the coinbase script to the coinbase locktime.=C2=
=A0 Have you<br>
> >> considered doing this?<br>
> ><br>
> > That change would not be a consensus change and thus free to make=
any<br>
> > day.<br>
<br>
<br>
--<br>
Tom Zander<br>
Blog: <a href=3D"https://zander.github.io" rel=3D"noreferrer" target=3D"_bl=
ank">https://zander.github.io</a><br>
Vlog: <a href=3D"https://vimeo.com/channels/tomscryptochannel" rel=3D"noref=
errer" target=3D"_blank">https://vimeo.com/channels/<wbr>tomscryptochannel<=
/a><br>
______________________________<wbr>_________________<br>
bitcoin-dev mailing list<br>
<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org">bitcoin-dev@lists.=
<wbr>linuxfoundation.org</a><br>
<a href=3D"https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev" =
rel=3D"noreferrer" target=3D"_blank">https://lists.linuxfoundation.<wbr>org=
/mailman/listinfo/bitcoin-<wbr>dev</a><br>
</div></div></blockquote></div><br></div>
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