Re: [Bitcoin-development] Proposed alternatives to the 20MB stepfunction

["Raystonn ." <raystonn@hotmail.com>]

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Regarding Tier’s proposal: The lower security you mention for extended blocks would delay, possibly forever, the larger blocks maximum block size that we want for the entire network.  That doesn’t sound like an optimal solution.

Regarding consensus for larger maximum block size, what we are seeing on this list is typical of what we see in the U.S. Congress.  Support for changes by the stakeholders (support for bills by the citizens as a whole) has become irrelevant to the probability of these changes being adopted.  Lobbyists have all the sway in getting their policies enacted.  In our case, I would bet on some lobbying of core developers by wealthy miners.

Someone recently proposed that secret ballots could help eliminate the power of lobbyists in Congress.  Nobody invests in that which cannot be confirmed.  Secret ballots mean the vote you are buying cannot be confirmed.  Perhaps this will work for Bitcoin Core as well.


From: Tier Nolan 
Sent: Friday, May 29, 2015 7:22 AM
Cc: Bitcoin Dev 
Subject: Re: [Bitcoin-development] Proposed alternatives to the 20MB stepfunction

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.



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