To: Adam Tamir Shem-Tov <tshachaf@gmail.com>,
	Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
References: <CACQPdjpPTHKQaY5NOvhEvSX1X3Jc9X4fcO7=Qy6Epwbftg4NOQ@mail.gmail.com>
From: Thomas Guyot-Sionnest <dermoth@aei.ca>
Message-ID: <57de4421-0162-67c5-8905-10f6b477644c@aei.ca>
Date: Sat, 26 Aug 2017 17:41:34 -0400
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Subject: Re: [bitcoin-dev] Solving the Scalability Problem Part II - Adam
 Shem-Tov
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I don't think you fully understand the way bitcoin works. There are no
"accounts" and no need to know the private key to change transactions in
the chain. What you need is to keep track of all unspent outputs (block
number, index, value and script/witness) so that they can be verified
once a transaction refers to it.

Everything you suggest about moving those funds to a "genesis account"
is nonsense and cannot work.

--
Thomas

On 26/08/17 05:01 PM, Adam Tamir Shem-Tov via bitcoin-dev wrote:
>
> <B>Solving the Scalability Problem Part II</B>
> --------------------------------------------------------------------
> <BR>
> In the previous post I showed a way to minimize the blocks on the
> block chain, to lower the amount of space it takes on the hard drive,
> without losing any relevant information.
> I added a note, saying that the transaction chain needs to be
> rewritten, but I did not give much detail to it.<BR>
> Here is how that would work:<BR>
> <B>The Genesis Account:</B>
> -----------------------------------------<BR>
> The problem with changing the transaction and block chain, is that it
> cannot be done without knowing the private key of the sender of the of
> the funds for each account. There is however a way to circumvent that
> problem. That is to create a special account called the =93Genesis
> Account=94, this account=92s Private Key and Public Key will be availab=
le
> to everyone.<BR>
> But this account will not be able to send or receive any funds in a
> normal block, it will be blocked--blacklisted. So no one can
> intentionally use it. The only time this account will be used is in
> the pruning block, a.k.a Exodus Block.<BR>
> When creating the new pruned block chain and transaction chain, all
> the funds that are now in accounts must be legitimate, and it would be
> difficult to legitimize them unless they were sent from a legitimate
> account, with a public key, and a private key which can be verified.
> That is where the Genesis account comes in. All funds in the Exodus
> Block will show as though they originated and were sent from the
> Genesis Account using its privatekey to generate each transaction.<BR>
> The funds which are sent, must match exactly the funds existing in the
> most updated ledger in block 1000 (the last block as stated in my
> previous post).<BR>
> In this way the Exodus Block can be verified, and the Genesis Account
> cannot give free money to anyway, because if someone tried to, it
> would fail verification.<BR>
>
> <BR>
> Now the next problem is that the number of Bitcoins keeps expanding
> and so the funds in the Genesis Account need to expand as well. That
> can be done by showing as though this account is the account which is
> mining the coins, and it will be the only account in the Exodus Block
> which =93mines=94 the coins, and receives the mining bonus. In the Exod=
us
> Block all coins mined by the real miners will show as though they were
> mined by Genesis and sent to the miners through a regular transaction.
>
> <BR>
>
> Adam Shem-Tov
>


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    I don't think you fully understand the way bitcoin works. There are
    no "accounts" and no need to know the private key to change
    transactions in the chain. What you need is to keep track of all
    unspent outputs (block number, index, value and script/witness) so
    that they can be verified once a transaction refers to it.<br>
    <br>
    Everything you suggest about moving those funds to a "genesis
    account" is nonsense and cannot work.<br>
    <br>
    --<br>
    Thomas<br>
    <br>
    <div class="moz-cite-prefix">On 26/08/17 05:01 PM, Adam Tamir
      Shem-Tov via bitcoin-dev wrote:<br>
    </div>
    <blockquote
cite="mid:CACQPdjpPTHKQaY5NOvhEvSX1X3Jc9X4fcO7=Qy6Epwbftg4NOQ@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <p style="margin-bottom:0in;line-height:100%">&lt;B&gt;Solving
          the
          Scalability Problem Part
          II&lt;/B&gt;<br>
--------------------------------------------------------------------<br>
          &lt;BR&gt;<br>
          In
          the previous post I showed a way to minimize the blocks on the
          block
          chain, to lower the amount of space it takes on the hard
          drive,
          without losing any relevant information.<br>
          I added a note, saying
          that the transaction chain needs to be rewritten, but I did
          not give
          much detail to it.&lt;BR&gt;<br>
          Here is how that would
          work:&lt;BR&gt;<br>
          &lt;B&gt;The Genesis
          Account:&lt;/B&gt;<br>
          -----------------------------------------&lt;BR&gt;<br>
          The
          problem with changing the transaction and block chain, is that
          it
          cannot be done without knowing the private key of the sender
          of the
          of the funds for each account. There is however a way to
          circumvent
          that problem. That is to create a special account called the
          �Genesis
          Account�, this account�s Private Key and Public Key will be
          available to everyone.&lt;BR&gt;<br>
          But this account will not be
          able to send or receive any funds in a normal block, it will
          be
          blocked--blacklisted. So no one can intentionally use it. The
          only
          time this account will be used is in the pruning block, a.k.a
          Exodus
          Block.&lt;BR&gt;<br>
          When creating the new pruned block chain and
          transaction chain, all the funds that are now in accounts must
          be
          legitimate, and it would be difficult to legitimize them
          unless they
          were sent from a legitimate account, with a public key, and a
          private
          key which can be verified. That is where the Genesis account
          comes
          in. All funds in the Exodus Block will show as though they
          originated
          and were sent from the Genesis Account using its privatekey to
          generate each transaction.&lt;BR&gt;<br>
          The funds which are sent,
          must match exactly the funds existing in the most updated
          ledger in
          block 1000 (the last block as stated in my previous
          post).&lt;BR&gt;<br>
          In
          this way the Exodus Block can be verified, and the Genesis
          Account
          cannot give free money to anyway, because if someone tried to,
          it
          would fail verification.&lt;BR&gt;</p>
        <p style="margin-bottom:0in;line-height:100%">&lt;BR&gt;<br>
          Now
          the next problem is that the number of Bitcoins keeps
          expanding and
          so the funds in the Genesis Account need to expand as well.
          That can
          be done by showing as though this account is the account which
          is
          mining the coins, and it will be the only account in the
          Exodus Block
          which �mines� the coins, and receives the mining bonus. In the
          Exodus Block all coins mined by the real miners will show as
          though
          they were mined by Genesis and sent to the miners through a
          regular
          transaction.</p>
        <p style="margin-bottom:0in;line-height:100%">&lt;BR&gt;</p>
        <p style="margin-bottom:0in;line-height:100%">Adam Shem-Tov</p>
      </div>
    </blockquote>
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