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Date: Fri, 29 May 2015 15:22:27 +0100
Message-ID: <CAE-z3OU8Vtmi_UK=nF1UNLsXCwd17mKDMS1qKudYB_kwDbOguA@mail.gmail.com>
From: Tier Nolan <tier.nolan@gmail.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
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Subject: Re: [Bitcoin-development] Proposed alternatives to the 20MB step
	function
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--001a1142dc1aac67250517393404
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On Fri, May 29, 2015 at 3:09 PM, Tier Nolan <tier.nolan@gmail.com> wrote:

>
>
> On Fri, May 29, 2015 at 1:39 PM, Gavin Andresen <gavinandresen@gmail.com>
> wrote:
>
>> But if there is still no consensus among developers but the "bigger
>> blocks now" movement is successful, I'll ask for help getting big miners to
>> do the same, and use the soft-fork block version voting mechanism to
>> (hopefully) get a majority and then a super-majority willing to produce
>> bigger blocks. The purpose of that process is to prove to any doubters that
>> they'd better start supporting bigger blocks or they'll be left behind, and
>> to give them a chance to upgrade before that happens.
>>
>
> How do you define that the movement is successful?
>

Sorry again, I keep auto-sending from gmail when trying to delete.

In theory, using the "nuclear option", the block size can be increased via
soft fork.

Version 4 blocks would contain the hash of the a valid extended block in
the coinbase.

<block height> <32 byte extended hash>

To send coins to the auxiliary block, you send them to some template.

OP_P2SH_EXTENDED <scriptPubKey hash> OP_TRUE

This transaction can be spent by anyone (under the current rules).  The
soft fork would lock the transaction output unless it transferred money
from the extended block.

To unlock the transaction output, you need to include the txid of
transaction(s) in the extended block and signature(s) in the scriptSig.

The transaction output can be spent in the extended block using P2SH
against the scriptPubKey hash.

This means that people can choose to move their money to the extended
block.  It might have lower security than leaving it in the root chain.

The extended chain could use the updated script language too.

This is obviously more complex than just increasing the size though, but it
could be a fallback option if no consensus is reached.  It has the
advantage of giving people a choice.  They can move their money to the
extended chain or not, as they wish.

--001a1142dc1aac67250517393404
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On F=
ri, May 29, 2015 at 3:09 PM, Tier Nolan <span dir=3D"ltr">&lt;<a href=3D"ma=
ilto:tier.nolan@gmail.com" target=3D"_blank">tier.nolan@gmail.com</a>&gt;</=
span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
x;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><br><div cl=
ass=3D"gmail_extra"><br><div class=3D"gmail_quote"><span class=3D"">On Fri,=
 May 29, 2015 at 1:39 PM, Gavin Andresen <span dir=3D"ltr">&lt;<a href=3D"m=
ailto:gavinandresen@gmail.com" target=3D"_blank">gavinandresen@gmail.com</a=
>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 =
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div=
></div><div>But if there is still no consensus among developers but the &qu=
ot;bigger blocks now&quot; movement is successful, I&#39;ll ask for help ge=
tting big miners to do the same, and use the soft-fork block version voting=
 mechanism to (hopefully) get a majority and then a super-majority willing =
to produce bigger blocks. The purpose of that process is to prove to any do=
ubters that they&#39;d better start supporting bigger blocks or they&#39;ll=
 be left behind, and to give them a chance to upgrade before that happens.<=
/div></div></blockquote><div><br></div></span><div>How do you define that t=
he movement is successful?<br></div></div></div></div></blockquote><div><br=
></div><div>Sorry again, I keep auto-sending from gmail when trying to dele=
te.<br><br></div><div>In theory, using the &quot;nuclear option&quot;, the =
block size can be increased via soft fork.<br></div><div><br></div><div></d=
iv><div>Version 4 blocks would contain the hash of the a valid extended blo=
ck in the coinbase.<br><br></div><div>&lt;block height&gt; &lt;32 byte exte=
nded hash&gt;<br></div><div><br></div><div>To send coins to the auxiliary b=
lock, you send them to some template.<br><br></div><div>OP_P2SH_EXTENDED &l=
t;scriptPubKey hash&gt; OP_TRUE<br><br></div><div>This transaction can be s=
pent by anyone (under the current rules).=C2=A0 The soft fork would lock th=
e transaction output unless it transferred money from the extended block.<b=
r><br></div><div>To unlock the transaction output, you need to include the =
txid of transaction(s) in the extended block and signature(s) in the script=
Sig.<br><br></div><div>The transaction output can be spent in the extended =
block using P2SH against the scriptPubKey hash.<br></div><div><br></div><di=
v>This means that people can choose to move their money to the extended blo=
ck.=C2=A0 It might have lower security than leaving it in the root chain.<b=
r><br></div><div>The extended chain could use the updated script language t=
oo.<br><br></div><div>This is obviously more complex than just increasing t=
he size though, but it could be a fallback option if no consensus is reache=
d.=C2=A0 It has the advantage of giving people a choice.=C2=A0 They can mov=
e their money to the extended chain or not, as they wish.<br></div></div></=
div></div>

--001a1142dc1aac67250517393404--