* [Bitcoin-development] Mining Hashrate Caps
@ 2014-07-17 10:59 Melvin Carvalho
2014-07-17 13:35 ` Mark Friedenbach
0 siblings, 1 reply; 3+ messages in thread
From: Melvin Carvalho @ 2014-07-17 10:59 UTC (permalink / raw)
To: Bitcoin Dev
[-- Attachment #1: Type: text/plain, Size: 612 bytes --]
I noticed this article today.
GHash Commits to 40% Hashrate Cap at Bitcoin Mining Summit
http://www.coindesk.com/ghash-commits-40-hashrate-cap-bitcoin-mining-summit/
Here's a quote from Satoshi when the mining arms race began:
"We should have a gentleman’s agreement to postpone the GPU arms race as
long as we can for the good of the network. It’s much easer to get new
users up to speed if they don’t have to worry about GPU drivers and
compatibility. It’s nice how anyone with just a CPU can compete fairly
equally right now."
Maybe outdated now, but I thought it was interesting.
[-- Attachment #2: Type: text/html, Size: 816 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Bitcoin-development] Mining Hashrate Caps
2014-07-17 10:59 [Bitcoin-development] Mining Hashrate Caps Melvin Carvalho
@ 2014-07-17 13:35 ` Mark Friedenbach
2014-07-17 15:45 ` David A. Harding
0 siblings, 1 reply; 3+ messages in thread
From: Mark Friedenbach @ 2014-07-17 13:35 UTC (permalink / raw)
To: bitcoin-development
Can someone explain to these guys and the public why promising to limit
yourselves to *only* a 50% chance of successfully double-spending a 6
confirm transaction is still not acceptable?
q=0.4
z=0 P=1
z=1 P=0.828861
z=2 P=0.736403
z=3 P=0.664168
z=4 P=0.603401
z=5 P=0.550625
z=6 P=0.50398
z=7 P=0.462301
z=8 P=0.424782
z=9 P=0.390828
z=10 P=0.359976
z=11 P=0.331858
z=12 P=0.306167
z=13 P=0.282649
z=14 P=0.261083
z=15 P=0.24128
z=16 P=0.223076
z=17 P=0.206324
z=18 P=0.190896
z=19 P=0.176676
On 07/17/2014 06:59 AM, Melvin Carvalho wrote:
> I noticed this article today.
>
> GHash Commits to 40% Hashrate Cap at Bitcoin Mining Summit
>
> http://www.coindesk.com/ghash-commits-40-hashrate-cap-bitcoin-mining-summit/
>
> Here's a quote from Satoshi when the mining arms race began:
>
> "We should have a gentleman’s agreement to postpone the GPU arms race as
> long as we can for the good of the network. It’s much easer to get new
> users up to speed if they don’t have to worry about GPU drivers and
> compatibility. It’s nice how anyone with just a CPU can compete fairly
> equally right now."
>
> Maybe outdated now, but I thought it was interesting.
>
>
> ------------------------------------------------------------------------------
> Want fast and easy access to all the code in your enterprise? Index and
> search up to 200,000 lines of code with a free copy of Black Duck
> Code Sight - the same software that powers the world's largest code
> search on Ohloh, the Black Duck Open Hub! Try it now.
> http://p.sf.net/sfu/bds
>
>
>
> _______________________________________________
> Bitcoin-development mailing list
> Bitcoin-development@lists•sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Bitcoin-development] Mining Hashrate Caps
2014-07-17 13:35 ` Mark Friedenbach
@ 2014-07-17 15:45 ` David A. Harding
0 siblings, 0 replies; 3+ messages in thread
From: David A. Harding @ 2014-07-17 15:45 UTC (permalink / raw)
To: Mark Friedenbach; +Cc: bitcoin-development
On Thu, Jul 17, 2014 at 09:35:20AM -0400, Mark Friedenbach wrote:
> Can someone explain to these guys and the public why promising to limit
> yourselves to *only* a 50% chance of successfully double-spending a 6
> confirm transaction is still not acceptable?
Hi, Mark.
We were asked on the bitcoin-documentation mailing list about a month
ago to work on something like this and we're getting close to a pull
request for the Bitcoin.org website. There's a preview here:
http://dg0.dtrt.org/en/mining#lucky-attack
(Remember, it's a preview and still being actively written/edited.)
Discussion about that doc belongs on the bitcoin-documentation mailing
list. Here's the particular thread:
https://groups.google.com/forum/#!topic/bitcoin-documentation/PKwBcroWGGg
Thanks,
-Dave
--
David A. Harding
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-07-17 16:21 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-07-17 10:59 [Bitcoin-development] Mining Hashrate Caps Melvin Carvalho
2014-07-17 13:35 ` Mark Friedenbach
2014-07-17 15:45 ` David A. Harding
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox