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From: cedric perronnet <cp@ows.fr>
To: bitcoin-dev@lists.linuxfoundation.org
Subject: Re: [bitcoin-dev] Dynamically Controlled Bitcoin Block Size Max Cap
Date: Tue, 18 Aug 2015 21:44:25 +0200	[thread overview]
Message-ID: <55D38B19.2090609@ows.fr> (raw)
In-Reply-To: <CAED3CWgTOMFgaM6bBfU0Dn-R0NrdrhGAQo34wHEneYkTtB4Opg@mail.gmail.com>

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Sounds like a much better approach than arbitrary deciding what the 
block size should be
BR

Le 18/08/2015 14:13, Upal Chakraborty via bitcoin-dev a écrit :
> Regarding: 
> http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-August/010295.html 
>
>
>
> I am arguing with the following statement here...
>
>     /I see problems to this approach. The biggest one I see is that a
>     miner with 11% of hash power could sabotage block size increases
>     by only ever mining empty blocks./
>
>
>
> First, I would like to argue from economics' point of view. If someone 
> wants to hold back the block size increase with 11% hash power by 
> mining empty blocks, he has to sacrifice Tx fees, which is not 
> economical. 11% hash power will most likely be a pool and pool miners 
> will find out soon that they are losing Tx fees because of pool 
> owner's intention. Hence, they'll switch pool and pool owner will lose 
> out. This is the same reason why 51% attack will never happen, even if 
> a pool gets more than 51% hash power.
>
>
> Next, I would like to propose a slightly modified technical solution 
> to this problem in algorithmic format...
>
> If more than 50% of block's size, found in the first 2000 of the last 
> difficulty period, is more than 90% MaxBlockSize
>          Double MaxBlockSize
> Else if more than 90% of block's size, found in the first 2000 of the 
> last difficulty period, is less than 50% MaxBlockSize
>          Half MaxBlockSize
> Else
>          Keep the same MaxBlockSize
>
> This is how, those who want to stop increase, need to have more than 
> 50% hash power. Those who want to stop decrease, need to have more 
> than 10% hash power, but must mine more than 50% of MaxBlockSize in 
> all blocks. In this approach, not only miners, but also the end user 
> have their say. Because, end users will fill up the mempool, from 
> where miners will take Tx to fill up the blocks. Please note that, 
> taking first 2000 of the last 2016 blocks is important to avoid data 
> discrepancy among different nodes due to orphan blocks. It is assumed 
> that a chain can not be orphaned after having 16 confirmation.
>
> Looking for comments.
>
>
>
>
>
>
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev


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  parent reply	other threads:[~2015-08-18 20:27 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-18 12:13 [bitcoin-dev] Dynamically Controlled Bitcoin Block Size Max Cap Upal Chakraborty
2015-08-18 17:26 ` Chris Wardell
2015-08-20  7:31   ` Jorge Timón
2015-08-20 10:23     ` Milly Bitcoin
2015-08-21  0:25       ` Tom Harding
2015-08-21  0:37         ` Peter Todd
2015-08-21 16:52           ` Tom Harding
2015-08-21 22:21             ` Peter Todd
2015-08-21 23:16               ` Tom Harding
2015-08-22  0:01                 ` Peter Todd
2015-08-22  3:21                   ` Jorge Timón
2015-08-22  6:26                     ` Peter Todd
2015-08-23 23:41                   ` Tom Harding
2015-08-24  2:27                     ` Jorge Timón
2015-08-21  0:45         ` Milly Bitcoin
2015-08-21  0:58           ` Peter Todd
2015-08-21  1:30             ` Milly Bitcoin
2015-08-21 20:28       ` Jorge Timón
2015-08-21 12:13     ` Sriram Karra
2015-08-21 20:09       ` Jorge Timón
2015-08-18 19:44 ` cedric perronnet [this message]
2015-08-18 20:58 ` Danny Thorpe
2015-08-18 21:17   ` Chris Wardell
2015-08-19 17:21   ` Upal Chakraborty
  -- strict thread matches above, loose matches on Subject: below --
2015-08-21 21:45 Upal Chakraborty
2015-08-20 15:02 Upal Chakraborty
2015-08-17 11:57 Rodney Morris
2015-08-17 12:38 ` Angel Leon
2015-08-17 12:43 ` Tier Nolan
2015-08-17  9:44 Upal Chakraborty
2015-08-17  9:54 ` Levin Keller
2015-08-17  9:59 ` Patrick Strateman
2015-08-17 10:51   ` Btc Drak

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