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From: Keagan McClelland <keagan.mcclelland@gmail.com>
Date: Mon, 17 May 2021 11:28:39 -0600
Message-ID: <CALeFGL1=_FSDT6TjmbL9N4TkLGvm5cMf9MsfLXT2rn5m2Cea3g@mail.gmail.com>
To: Anton Ragin <anton@etc-group.com>, 
 Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
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Subject: Re: [bitcoin-dev] Proposal: Force to do nothing for first 9 minutes
 to save 90% of mining energy
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In principle the idea of making your transactions not mineable except by
miners who follow some particular practice is something that can and should
be discussed. For instance, it could help give economic signals for future
soft forks such that users can declare preference in a costly, sybil
resistant way.

As I understand what you are asking, you want users to be able to issue
transactions that can only be included in blocks that are signed by miners
whose certificates can be traced back to some set of certificates that the
sender has "whitelisted". The trouble here is that in order for this to be
an open system, the user would need to be able to include an unbounded
number of optional certificates in the transaction itself, otherwise the
rest of the network would be unable to validate whether or not the
transaction, when included in the block fit the consensus rules or not.

This is not possible for rather obvious reasons:
1. transaction sizes cannot be allowed to be unbounded because this creates
denial of service attacks for the broader network
2. if the valid certificate set is not unbounded, then centralization
pressure will mount on the bound between the Nth and N+1th certifier.

Finally, all of this would require a rather large consensus change to even
implement. Given how contentious the proposal of a "choose your
miner/certifier" is, it is unlikely to gain the necessary support in the
form of code, review, miner signaling, or user uptake for a UASF.

That said, not all is lost. If you truly care about only having your
transactions mined by "green" miners or whatever other qualification you
are going after, then this can likely be implemented in upper layers as you
suggested. You can submit your transaction via an overlay network directly
to any miners that fit your criteria. Since miners operate in a selfish
way, it is not in their interest to share your transaction with other
miners, and the probable case is that your transaction will only be
included in a block that is signed by your preferred authority.

I should note though, that you may be waiting forever for your transactions
to be mined and your business partners might choose not to do business with
you in the future due to delays caused by virtue signaling to nocoiners.

> Please don't be dismissive, it is an open forum and everybody is entitled
to his/her/its own opinion.

It is, in fact, an open forum and everyone is entitled to their view,
including being dismissive of yours.

> I respectfully submit that people who know how to launch rockets to the
sky and beam high-speed internet from the satellites to every place on
earth are at least capable of understanding how Bitcoin works. There is
even an english expression which reads 'it is not a rocket science' which I
think fits especially nicely in this particular case :)

No one is contesting that Elon and the rest of the technical staff at Tesla
are *capable* of understanding Bitcoin. We are just asserting that, at
present, they do not understand the underlying mechanics well enough to
give consistent rationale for their choices, and because their public
statements reveal either a deep hypocrisy, or deep ignorance in their
understanding of Bitcoin.

Keagan

On Mon, May 17, 2021 at 8:11 AM Anton Ragin via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> Hello, list
>
> >Hello centralisation. Might as well just have someone sign miner keys,
> and get
> >rid of PoW entirely...
> >No, it is not centralization -
>
> No, it is not centralization, as:
>
> (a) different miners could use different standards / certifications for
> 'green' status, there are many already;
>
>
> >> That does not refute the claim at all. Just because you can choose from
> multiple centralized authorities, which are well known and can collude, it
> does not mean it is decentralized by any reasonable definition of the term.
>
> (b) it does not affect stability of the network in a material way, rather
> creates small (12.5% of revenue max) incentive to move to green sources of
> energy (or buy carbon credits) and get certified - miners who would choose
> to run dirty energy will still be able to do so.
> and
>
>
> >> Who is to issue these credits? A centralized entity I guess ... There
> is no place for such in Bitcoin.
>
> If I am to concede on the point that *voluntarily* green-status miner
> certification is 'centralization', can you please explain *in detail* why
> aren't 'bitcoin.org' and GitHub repo similar examples of
> 'centralization'? You make a correct point that bitcoin.org and the
> GitHub repo are not 'official' things of Bitcoin network, however nowhere
> in my proposals on green miner certification I was suggesting to introduce
> an 'official' certificate for such a thing. May be I mis-formulated my
> ideas, in that case I apologize:
>
> The only thing which I suggested was to introduce an option to have some
> transactions encrypted in the mempool to allow Bitcoin users some control
> over who mines their transaction - full stop. Users could then decide how
> to use this functionality themselves, and such functionality could have
> uses way beyond 'green miners' - for example, some users might prefer to
> send their transactions *directly to trusted miners* to prevent certain
> quantum computer enabled attacks (e.g. when there is a window of
> opportunity to steal coins if you have fast QC when you spend even from
> p2phk address). Another example - if users are given some flexibility whom
> to send the transactions, they might actually want to steer them away from
> huge mining pools such as Antpool to support small independent miners, smth
> of this sort - which actually would boost diversity in the network.
>
> You may or may not agree that climate change is real, or may or may not
> agree that Bitcoin energy consumption is a problem - I respectfully submit
> it is not the right forum to find truth on these topics. We are discussing
> ideas which *might *make Bitcoin a better solution for users who care
> about certain things, *without *making it worse for somebody else (like
> you, for example - who don't like centralization in any form).
>
> >> (c) nothing is being proposed beyond what is already possible - Antpool
> can go green today, and solicit users to send them signed transactions
> directly instead of adding them to a public mempool, under the pretext that
> it would make the transfer 'greener'.
>
> >> And if there was an economic advantage in doing so, miners would quite
> likely already implement that. Yet, somehow, they are not doing that.
>
> Arguments of the sort 'if something could be done or should have been done
> - it would be done already' are flawed, in my opinion, as following the
> same logic nothing (including Bitcoin itself) should have been done ever.
> As a matter of fact, we are working on a green miner initiative with
> certain miners, having a call with Hut8 in 20 minutes myself - and I know
> that we are not the only ones. Green crypto initiatives are actually
> widespread, and the solutions will be popping up soon.
>
> >>  Please stop with the carbon credit nonsense. There is likely no such
> thing to exist on a free market and no one is interested in these state
> regulations.
>
> Please read this Wikipedia Article:
> https://en.wikipedia.org/wiki/Carbon_offset
>
> "There are two types of markets for carbon offsets, compliance and
> *voluntary*" [emphasis added].
>
> Voluntary carbon offset markets are actually growing really fast.
>
> >> Just because a big company is controlled by people who do not
> understand Bitcoin, it does not make the issue valid. There are no such
> environmental concerns once you understand how Bitcoin and free market
> work. Don't help to spread the FUD.
>
> I respectfully submit that people who know how to launch rockets to the
> sky and beam high-speed internet from the satellites to every place on
> earth are at least capable of understanding how Bitcoin works. There is
> even an english expression which reads 'it is not a rocket science' which I
> think fits especially nicely in this particular case :)
>
> >>  Once people stop spreading FUD, the price will likely skyrocket. Start
> with yourself please.
>
> I guess you misinterpret my intentions, I think it doesn't matter what
> Bitcoin price is - my personal interest is the widest possible adoption of
> blockchain as a peer-to-peer way to transfer value between consenting
> individuals free from government control or intervention. Environmental
> concerns are real and at least some parts of the community are clearly
> interested to at least discuss this matter (e.g. I am not the one who
> started this thread).
>
> Please don't be dismissive, it is an open forum and everybody is entitled
> to his/her/its own opinion.
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>

--00000000000047e0e105c289ed8f
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">In principle the idea of making your transactions not mine=
able except by miners who follow some particular practice is something that=
 can and should be discussed. For instance, it could help give economic sig=
nals for future soft forks such that users can declare preference in a cost=
ly, sybil resistant way.<div><br></div><div>As I understand what you are as=
king, you want users to be able to issue transactions that can only be incl=
uded in blocks that are signed by miners whose certificates can be traced b=
ack to some set of certificates that the sender has &quot;whitelisted&quot;=
. The trouble here is that in order for this to be an open system, the user=
 would need to be able to include an unbounded number of optional certifica=
tes in the transaction itself, otherwise the rest of the network would be u=
nable to validate whether or not the transaction, when included in the bloc=
k fit the consensus rules or not.</div><div><br></div><div>This is not poss=
ible for rather=C2=A0obvious reasons:</div><div>1. transaction sizes cannot=
 be allowed to be unbounded because this creates denial of service attacks =
for the broader network</div><div>2. if the valid certificate set is not un=
bounded, then centralization pressure will mount on the bound between the N=
th and N+1th certifier.</div><div><br></div><div>Finally, all of this would=
 require a rather large consensus change to even implement. Given how conte=
ntious the proposal of a &quot;choose your miner/certifier&quot; is, it is =
unlikely to gain the necessary support in the form of code, review, miner s=
ignaling, or user uptake for a UASF.</div><div><br></div><div>That said, no=
t all is lost. If you truly care about only having your transactions mined =
by &quot;green&quot; miners or whatever other qualification you are going a=
fter, then this can likely be implemented in upper layers as you suggested.=
 You can submit your transaction via an overlay network directly to any min=
ers that fit your criteria. Since miners operate in a selfish way, it is no=
t in their interest to share your transaction with other miners, and the pr=
obable case is that your transaction will only be included in a block that =
is signed by your preferred authority.</div><div><br></div><div>I should no=
te though, that you may be waiting forever for your transactions to be mine=
d and your business partners might choose not to do business with you in th=
e future due to delays caused by virtue signaling to nocoiners.</div><div><=
br></div><div>&gt; Please don&#39;t be dismissive, it is an open forum and =
everybody is entitled to his/her/its own opinion.=C2=A0<br></div><div><br><=
/div><div>It is, in fact, an open forum and everyone is entitled to their v=
iew, including being dismissive of yours.</div><div><br></div><div>&gt; I r=
espectfully submit that people who know how to launch rockets to the sky an=
d beam high-speed internet from the satellites to every place on earth are =
at least capable of understanding how Bitcoin works. There is even an engli=
sh expression which reads &#39;it is not a rocket science&#39; which I thin=
k fits especially nicely in this particular case :)</div><div><br></div><di=
v>No one is contesting that Elon and the rest of the technical staff at Tes=
la are *capable* of understanding Bitcoin. We are just asserting that, at p=
resent, they do not understand the underlying mechanics well enough to give=
 consistent=C2=A0rationale for their choices, and because their public stat=
ements reveal either a deep hypocrisy, or deep ignorance in their understan=
ding of Bitcoin.</div><div><br></div><div>Keagan</div></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, May 17, 2021=
 at 8:11 AM Anton Ragin via bitcoin-dev &lt;<a href=3D"mailto:bitcoin-dev@l=
ists.linuxfoundation.org">bitcoin-dev@lists.linuxfoundation.org</a>&gt; wro=
te:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"=
ltr"><div>Hello, list</div><div><br></div><div><blockquote type=3D"cite"><d=
iv dir=3D"ltr"><div><div>&gt;Hello centralisation. Might as well just have =
someone sign miner keys, and get<br></div><div>&gt;rid of PoW entirely...<b=
r></div></div><div>&gt;No, it is not centralization -=C2=A0<br></div><div><=
br></div><div>No, it is not centralization, as:<br></div><div><br></div><di=
v>(a) different miners could use different standards / certifications for &=
#39;green&#39; status, there are many already;<br></div></div></blockquote>=
<div><br></div><div>&gt;&gt; That does not refute the claim at all. Just be=
cause you can choose from multiple centralized authorities, which are well =
known and can collude, it does not mean it is decentralized by any reasonab=
le definition of the term.</div><div><br></div><div><blockquote type=3D"cit=
e"><div dir=3D"ltr"><div>(b)
 it does not affect stability of the network in a material way, rather
creates small (12.5% of revenue max) incentive to move to green sources
of energy (or buy carbon credits) and get certified - miners who would
choose to run dirty energy will still be able to do so.<br></div><div><div>=
and<br></div></div></div></blockquote><div><br></div><div>&gt;&gt; Who is t=
o issue these credits? A centralized entity I guess ... There is no place f=
or such in Bitcoin.</div></div><div><br></div><div>If I am to concede on th=
e point that <u>voluntarily</u> green-status miner certification is &#39;ce=
ntralization&#39;, can you please explain <i>in detail</i>=C2=A0why aren&#3=
9;t &#39;<a href=3D"http://bitcoin.org" target=3D"_blank">bitcoin.org</a>&#=
39; and GitHub repo similar examples of &#39;centralization&#39;? You make =
a correct point that <a href=3D"http://bitcoin.org" target=3D"_blank">bitco=
in.org</a> and the GitHub repo are not &#39;official&#39; things of Bitcoin=
 network, however nowhere in my proposals on green miner certification I wa=
s suggesting to introduce an &#39;official&#39; certificate for such a thin=
g. May be I mis-formulated my ideas, in that case I apologize:</div><div><b=
r></div><div>The only thing which I suggested was to introduce an option to=
 have some transactions encrypted in the mempool to allow Bitcoin users som=
e control over who mines their transaction - full stop. Users could then de=
cide how to use this functionality themselves, and such functionality could=
 have uses way beyond &#39;green miners&#39; - for example, some users migh=
t prefer to send their transactions <i>directly to trusted miners</i> to pr=
event certain quantum computer enabled attacks (e.g. when there is a window=
 of opportunity to steal coins if you have fast QC when you spend even from=
 p2phk address). Another example - if users are given some flexibility whom=
 to send the transactions, they might actually want to steer them away from=
 huge mining pools such as Antpool to support small independent miners, smt=
h of this sort - which actually would boost diversity in the network.</div>=
<div><br></div><div>You may or may not agree that climate change is real, o=
r may or may not agree that Bitcoin energy consumption is a problem - I res=
pectfully submit it is not the right forum to find truth on these topics. W=
e are discussing ideas which <i>might </i>make Bitcoin a better solution fo=
r users who care about certain things, <i>without </i>making it worse for s=
omebody else (like you, for example - who don&#39;t like centralization in =
any form).</div><div><br></div><div>&gt;&gt; (c)
 nothing is being proposed beyond=C2=A0what is already possible - Antpool c=
an
 go green today, and solicit users to send them signed transactions
directly instead of adding them to a public mempool, under the pretext
that it would make the transfer &#39;greener&#39;.</div><div><br></div><div=
>&gt;&gt; And if there was an economic advantage in doing so, miners would =
quite likely already implement that. Yet, somehow, they are not doing that.=
</div><div><br></div><div>Arguments of the sort &#39;if something could be =
done or should have been done - it would be done already&#39; are flawed, i=
n my opinion, as following the same logic nothing (including Bitcoin itself=
) should have been done ever. As a matter of fact, we are working on a gree=
n miner initiative with certain miners, having a call with Hut8 in 20 minut=
es=C2=A0myself - and I know that we are not the only ones. Green crypto ini=
tiatives are actually widespread, and the solutions will be popping up soon=
.</div><div><br></div><div>&gt;&gt;=C2=A0

Please stop with the carbon credit nonsense. There is likely no such thing =
to exist on a free market and no one is interested in these state regulatio=
ns.

</div><div><br></div><div>Please read this Wikipedia Article:=C2=A0<a href=
=3D"https://en.wikipedia.org/wiki/Carbon_offset" target=3D"_blank">https://=
en.wikipedia.org/wiki/Carbon_offset</a></div><div><br></div><div>&quot;<spa=
n style=3D"color:rgb(32,33,34);font-family:sans-serif;font-size:14px">There=
 are two types of markets for carbon offsets, compliance and <u>voluntary</=
u>&quot; [emphasis added].</span></div><div><span style=3D"color:rgb(32,33,=
34);font-family:sans-serif;font-size:14px"><br></span></div><div><span styl=
e=3D"color:rgb(32,33,34);font-family:sans-serif;font-size:14px">Voluntary c=
arbon offset markets are actually growing really fast.</span></div><div><sp=
an style=3D"color:rgb(32,33,34);font-family:sans-serif;font-size:14px"><br>=
</span></div><div><span style=3D"color:rgb(32,33,34);font-family:sans-serif=
;font-size:14px">&gt;&gt;=C2=A0</span>Just because a big company is control=
led by people who do not understand Bitcoin, it does not make the issue val=
id. There are no such environmental concerns once you understand how Bitcoi=
n and free market work. Don&#39;t help to spread the FUD.</div><div><br></d=
iv><div>I respectfully submit that people who know how to launch rockets to=
 the sky and beam high-speed internet from the satellites to every place on=
 earth are at least capable of understanding how Bitcoin works. There is ev=
en an english expression which reads &#39;it is not a rocket science&#39; w=
hich I think fits especially nicely in this particular case :)</div><div><b=
r></div><div>&gt;&gt;=C2=A0

Once people stop spreading FUD, the price will likely skyrocket. Start with=
 yourself please.

</div><div><br></div><div>I guess you misinterpret my intentions, I think i=
t doesn&#39;t matter what Bitcoin price is - my personal interest is the wi=
dest possible adoption of blockchain as a peer-to-peer way to transfer valu=
e between consenting individuals free from government control or interventi=
on. Environmental concerns are real and at least some parts of the communit=
y are clearly interested to at least discuss this matter (e.g. I am not the=
 one who started this thread).</div><div><br></div><div>Please don&#39;t be=
 dismissive, it is an open forum and everybody is entitled to his/her/its o=
wn opinion.=C2=A0</div></div></div>
_______________________________________________<br>
bitcoin-dev mailing list<br>
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