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Author Topic: [CLOSED] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers  (Read 829099 times)
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eleuthria
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April 19, 2013, 09:36:48 AM
 #2241

Somewhat related issue to the DB maintenance on the charts history:  The PPLNS share collection script got stuck and did not close shift 5062 at the appropriate interval.  The shift is being closed right now.  This shift will have roughly 2.5x as many shares as a normal shift, and will receive proportionally more of the block rewards over the shift maturation time as a result.  Sorry for the error, I've just been going through a lot of scripts again trying to keep the site moving quickly even when the heavy duty scripts are running in the background.


EDIT:  Website temporarily offline while this script is cleaned up.

R.I.P. BTC Guild, 2011 - 2015.
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April 19, 2013, 10:02:19 AM
 #2242

Website back up and out of maintenance mode.  Some lag is expected right now as a few cleanup scripts are being run and major "on the hour" scripts are running at the same time.

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April 19, 2013, 10:40:35 AM
 #2243

Thanks for the updates.  Wondered if it was just me. :^)

LTC:   LRsiHqFcSXGyP9zvYUvJxe7N7ivLcVb72z      FTC:  71rY4vP8wWEyKx9FNBvHM9MFrNH9QRboTf
BTC:  16PngKMS1eR2HviY7wEurD6ZxdB1kvHK1J    NMC:  N7XPo3E3fEDAFUhyrvQBHzYkA45kkjWDse
QRK:  QT5JhzHDU4pNeKzA9GWoaBh8bzjPK9cADS  DOGE: DK2wCYTux4JpcnmRGsKmnc5qCY615hsiAV
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April 19, 2013, 05:01:29 PM
 #2244

Hi

I dont like making this post, but it needs to be said. WTF are you miners doing giving one pool all this hashpower ? At current a 51% attack is possible, I respect eleuthria and can respect that you trust him. But this is just not acceptable, what if someone managed to compromise the pool server.. or held eleuthria at gunpoint. You are playing with the very existense of bitcoin. Disperse to other pools, immediately, please.

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organofcorti
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April 19, 2013, 05:04:59 PM
 #2245

Hi

I dont like making this post, but it needs to be said. WTF are you miners doing giving one pool all this hashpower ? At current a 51% attack is possible, I respect eleuthria and can respect that you trust him. But this is just not acceptable, what if someone managed to compromise the pool server.. or held eleuthria at gunpoint. You are playing with the very existense of bitcoin. Disperse to other pools, immediately, please.

How can a "51% attack" be possible when BTCGuild has ~ 42% of the hashrate atm? Have you been sniffing blockchain.info/pools sir?

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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April 19, 2013, 05:09:04 PM
 #2246

How can a "51% attack" be possible when BTCGuild has ~ 42% of the hashrate atm? Have you been sniffing blockchain.info/pools sir?
Surely 42% cannot get 6 or more consecutive blocks? Surely 42% isnt risky ? Surely a ddos on another top pool or two would not push this past 51% Surely two pool ops could not work together on achieving the dominant part of the network ? Surey not... take a minute to think of what is at stake. Being past 30% is outright irresponsible in my book, this is just a dizaster wating to happen.

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April 19, 2013, 05:18:29 PM
 #2247

Just to point it out, BTC Guild is still in the 36-37% range out of the last 2016 blocks.  Luck has been terrible the last week and a half, so it's probably a bit understated right now, but I continue to trust http://blockorigin.pfoe.be and use that for the 51% mitigation steps that kick in at 40%+.

R.I.P. BTC Guild, 2011 - 2015.
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April 19, 2013, 05:24:04 PM
 #2248

Just to point it out, BTC Guild is still in the 36-37% range out of the last 2016 blocks.  Luck has been terrible the last week and a half, so it's probably a bit understated right now, but I continue to trust http://blockorigin.pfoe.be and use that for the 51% mitigation steps that kick in at 40%+.
I understand and appreciate what you are doing, but you should not be the only one with a sense of responsibility here. Mining is not just making Internet Magic Money, you are the guardians of the blockchain, each and every one of you bares responsibility wether you like it or not. Start living up to the duty and bearing that responsibility.

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organofcorti
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April 20, 2013, 01:05:45 AM
 #2249

How can a "51% attack" be possible when BTCGuild has ~ 42% of the hashrate atm? Have you been sniffing blockchain.info/pools sir?
Surely 42% cannot get 6 or more consecutive blocks? Surely 42% isnt risky ? Surely a ddos on another top pool or two would not push this past 51% Surely two pool ops could not work together on achieving the dominant part of the network ? Surey not... take a minute to think of what is at stake. Being past 30% is outright irresponsible in my book, this is just a dizaster wating to happen.

Well, that's not a "51% attack" , is it? I'd just come from another thread claiming at that BTCGuild had 48% of the hashrate and I assumed you were referring to that thread. The problem there was that they'd been basing their estimate on blockchain.info.

The 42% I quoted was based on the estimated network hashrate and the instantaneous pool hashrate and so is not the same thing as the proportion of blocks solved.




Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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April 20, 2013, 07:32:19 AM
 #2250

now it's almost over 30k!!!

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April 20, 2013, 09:58:52 AM
 #2251

With OzCoin closing down temporarily and other pools getting DDoS 30K still seems reasonable.

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April 20, 2013, 10:02:26 AM
 #2252

Pool Speed 30,168 GH/s.
Network speed according to bitcoin.sipa.be 3 day average : 63GH/s

Will the only way to influence this be a ddos ?

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organofcorti
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April 20, 2013, 10:03:32 AM
 #2253

Pool Speed 30,168 GH/s.
Network speed according to bitcoin.sipa.be 3 day average : 63GH/s

Will the only way to influence this be a ddos ?

Use the 7 day window. More accurate.

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kano
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April 20, 2013, 11:48:49 AM
 #2254

Pool Speed 30,168 GH/s.
Network speed according to bitcoin.sipa.be 3 day average : 63GH/s

Will the only way to influence this be a ddos ?

Use the 7 day window. More accurate.
... so you find out 3 or so days after the fact Tongue

Isn't 3 days accurate enough?

I always see 3 days of diff calculation as quite accurate - and always tell anyone who looks at the diff after a change to wait for ~3 days/~432 blocks ... like now Smiley 1.6% - nice Smiley

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organofcorti
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April 20, 2013, 12:06:44 PM
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Pool Speed 30,168 GH/s.
Network speed according to bitcoin.sipa.be 3 day average : 63GH/s

Will the only way to influence this be a ddos ?

Use the 7 day window. More accurate.
... so you find out 3 or so days after the fact Tongue

Isn't 3 days accurate enough?

I'm not referring to a three day average, but the three day estimate on bitcoin.sipa.be.

It's not a three day or a seven day rolling average on bitcoin.sipa.be, the names a bit of a misnomer. The seven day window there is similar to the results I get using a different method, so I know it's the best estimate to use.

The three day estimate still has far too much variance in it. If you try to do a GOF of 1/(three day estimate hashrate) to a gamma distribution, you get a poor fit (p<0.05). The method I use that has similar results to the 7 day estimate has quite a good fit of 1/hashrate to a gamma distribution.


I always see 3 days of diff calculation as quite accurate - and always tell anyone who looks at the diff after a change to wait for ~3 days/~432 blocks ... like now Smiley 1.6% - nice Smiley

The confidence interval of the hashrate depends on how you calculate the hashrate - blocks per unit time or amount of time per block (or blocks).

I'll get around to posting something on it Real Soon Now (tm)

In the meantime your best bet is to use the seven day line on bitcoin.sipa.be for your estimate.

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eleuthria
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April 21, 2013, 03:58:11 PM
 #2256

EU Stratum server is being rebooted, should be back up in a few minutes.  Sorry for the lack of notice.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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April 23, 2013, 04:09:22 PM
 #2257

EU Stratum is going down, will be back up as soon as possible.


UPDATE:  EU Stratum should be restored within 1-2 hours.  A second EU Stratum server will hopefully be coming online early May.

R.I.P. BTC Guild, 2011 - 2015.
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April 23, 2013, 05:32:43 PM
 #2258

I'll just leave this here:



Please consider moving your miners if you can read this.

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April 23, 2013, 06:07:20 PM
 #2259

I'll just leave this here:



Please consider moving your miners if you can read this.

what is this?
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April 23, 2013, 06:12:42 PM
 #2260

what is this?
This is your pool having the sufficient hashrate for a 51% attack, once again. Note the six consecutive blocks.

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