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Topic: Instant-Payout Mining - BitPenny.com (Read 35141 times)

member
Activity: 84
Merit: 11
August 11, 2011, 02:21:11 AM
BitPenny is back!
Since the model is entirely new, please join the new forum thread at https://bitcointalksearch.org/topic/bitpennycom-sustainable-mining-new-open-source-client-36371
hero member
Activity: 499
Merit: 500
i can't connect to rpc???

Shutdown..... Read thread. Cry
member
Activity: 84
Merit: 11
April 09, 2011, 12:29:31 AM
All remaining balances greater than or equal to .01 BTC have been disbursed automatically.
full member
Activity: 182
Merit: 107
April 04, 2011, 11:46:36 AM
7-10 Gh isn't that close to 60-70.
No, but it is a surge in activity -- nothing says that all ~65Gh must go to the same pool.  Most Bitpenny miners probably went to Deepbit PPS.  (That's where I took my slower miners.)
hero member
Activity: 742
Merit: 500
April 04, 2011, 09:48:46 AM
Those 70 Gh should have already joined other pools after bitpenny shutdown, but where are they now ?
Bitcoinpool's has rate has nearly doubled in the last 3-4 days. Could be some of them.
7-10 Gh isn't that close to 60-70.
sr. member
Activity: 392
Merit: 250
April 04, 2011, 09:42:00 AM
Those 70 Gh should have already joined other pools after bitpenny shutdown, but where are they now ?

Bitcoinpool's has rate has nearly doubled in the last 3-4 days. Could be some of them.
hero member
Activity: 742
Merit: 500
April 04, 2011, 09:36:41 AM
And attacking a pool with unknown hashrate is strange idea anyway. Unless they tracked it's blocks.
Afaik bitpenny was around 70Ghash, some people mentioned that on forum (but I don't know original source, maybe bitpenny's IRC channel?).
70 Gh was mentioned on that "pool comparison site", but i'm not sure. Those 70 Gh should have already joined other pools after bitpenny shutdown, but where are they now ?
OneFixt didn't wanted to tell me his hashrate when i asked sometimes.
legendary
Activity: 1386
Merit: 1097
April 04, 2011, 09:18:31 AM
#99
And attacking a pool with unknown hashrate is strange idea anyway. Unless they tracked it's blocks.

Afaik bitpenny was around 70Ghash, some people mentioned that on forum (but I don't know original source, maybe bitpenny's IRC channel?).
hero member
Activity: 742
Merit: 500
April 04, 2011, 08:50:16 AM
#98
Hard to believe that there is one of us trying to hurt bitcoin economy; sabotage can be (effectively) performed only with large mining rig. The motivation can be pretty clear - by killing pools, you'll have lower difficulty in the future...
Killing a pool will only make people move to another or switch to solo mining. Even if all mining pools will be stopped, people with GPUs will just switch to solo.

And attacking a pool with unknown hashrate is strange idea anyway. Unless they tracked it's blocks.
legendary
Activity: 1386
Merit: 1097
April 04, 2011, 07:49:12 AM
#97
Hard to believe that there is one of us trying to hurt bitcoin economy; sabotage can be (effectively) performed only with large mining rig. The motivation can be pretty clear - by killing pools, you'll have lower difficulty in the future...
hero member
Activity: 742
Merit: 500
April 04, 2011, 12:41:27 AM
#96
The worst part of such an attack is that it is purely malicious.
The person performing the attack doesn't gain any extra income, and in fact loses a share each time it found a fully valid block.
Not only the share, but also 10% fee.
The attacker loses virtually nothing compared to an honest pool user, so it's purely malicious when compared with honest pool use.  An attacker loses 1/2^32 shares per block on average, so he still receives 99.9999999767% of what an honest pool user would get.
Yes. 10% if compared to solo mining or 7% if share/score based pool.
The attacker had to have high hashrate, so he had also chance to mine solo or somewhere else instead of attacking.
member
Activity: 84
Merit: 11
April 04, 2011, 12:22:46 AM
#95
The worst part of such an attack is that it is purely malicious.
The person performing the attack doesn't gain any extra income, and in fact loses a share each time it found a fully valid block.
Not only the share, but also 10% fee.

The attacker loses virtually nothing compared to an honest pool user, so it's purely malicious when compared with honest pool use.  An attacker loses 1/2^32 shares per block on average, so he still receives 99.9999999767% of what an honest pool user would get.
hero member
Activity: 742
Merit: 500
April 03, 2011, 11:50:55 PM
#94
The worst part of such an attack is that it is purely malicious.
The person performing the attack doesn't gain any extra income, and in fact loses a share each time it found a fully valid block.
Not only the share, but also 10% fee.
sr. member
Activity: 406
Merit: 250
April 03, 2011, 11:22:08 PM
#93
OneFixt, I'm pretty unhappy that you are in red numbers, because your pool was very fair competitor. Did you do some analysis why the pool performed under 10% of teoretic income? It can be very long period of bad luck, but I feel that you were target of sabotage (of course it's just my feeling, I don't have hard data). There are people trying to hurt pools; almost every pool was DDoSed and I saw many tries of hacking. This experience was the reason why I rejected PPS model on my pool, so I'm curious if I was right...

The DDoS attempts did not have much of an effect, but the block-withholding attacks did.  I collected enough statistics to be fairly certain that there was an attack, rather than simply bad luck.  You were correct in your reasoning.

Thanks again to all the people donating  Smiley

The worst part of such an attack is that it is purely malicious.

The person performing the attack doesn't gain any extra income, and in fact loses a share each time it found a fully valid block.
member
Activity: 84
Merit: 11
April 03, 2011, 10:49:10 PM
#92
OneFixt, I'm pretty unhappy that you are in red numbers, because your pool was very fair competitor. Did you do some analysis why the pool performed under 10% of teoretic income? It can be very long period of bad luck, but I feel that you were target of sabotage (of course it's just my feeling, I don't have hard data). There are people trying to hurt pools; almost every pool was DDoSed and I saw many tries of hacking. This experience was the reason why I rejected PPS model on my pool, so I'm curious if I was right...

The DDoS attempts did not have much of an effect, but the block-withholding attacks did.  I collected enough statistics to be fairly certain that there was an attack, rather than simply bad luck.  You were correct in your reasoning.

Thanks again to all the people donating  Smiley

full member
Activity: 226
Merit: 100
April 03, 2011, 02:16:21 PM
#91
sad news   Sad
well, i hadn't tried bitpenny but i will donate a symbolic amount, just to keep the business rolling  Wink
legendary
Activity: 1386
Merit: 1097
April 03, 2011, 12:56:32 PM
#90
OneFixt, I'm pretty unhappy that you are in red numbers, because your pool was very fair competitor. Did you do some analysis why the pool performed under 10% of teoretic income? It can be very long period of bad luck, but I feel that you were target of sabotage (of course it's just my feeling, I don't have hard data). There are people trying to hurt pools; almost every pool was DDoSed and I saw many tries of hacking. This experience was the reason why I rejected PPS model on my pool, so I'm curious if I was right...
member
Activity: 84
Merit: 11
April 03, 2011, 12:23:27 AM
#89
Thank you so much, cdhowie and Miner-TE, for your kind words and donations.  
I am very glad to hear that you enjoyed BitPenny, and very sad to have to take it down.
I hope to be able to bring BitPenny back in a different form at some point in the future, and am very encouraged knowing that I have had such kind-hearted users  Smiley
full member
Activity: 182
Merit: 107
April 03, 2011, 12:14:39 AM
#88
BitPenny will be shut down indefinitely at 11:59PM 4/2/2011 EST due to continued and unsustainable losses.
Really sorry to hear that man.  I can't in good conscience keep everything I've earned from your pool, so I'm sending half of it back.  (Which isn't much to start with since I mainly ran CPU miners in your pool, but hopefully it will amount for something.)

Hopefully others will do the same.  Best of luck to you.
hero member
Activity: 499
Merit: 500
April 03, 2011, 12:07:45 AM
#87
I'm sorry to hear this,  I thought you had a great site.

Guys,  I suggest we send donations to OneFixT and soften the losses that occurred.
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