[ANN] [QRK] Quark | Core 0.10 upgrade

[Neisklar]

Could someone please prove my following maths wrong:

hash_rate = (blocks_found/expected_blocks*difficulty * 2^24 / 30)

I looked at the block window from block 456520 onwards (approx 2013-12-14 20:10:18 GMT)
Lets look at a 5 minute window, which should get us 10 blocks.
Depending if we start this window at 20:10:00 or 20:10:18 we get 10 or 11 blocks "solved" in that time, so lets take the middle and take a factor of 1.05

So we have:

hash_rate = 1.05 * 6411.26760900 * 16777216 / 30
hash_rate =~ 3764712752 =~  3,76 GH/s

So we have approximatly a network hashrate of 3,67 GHashes per second.

http://qrk.coinmine.pl/ showed at that time an approximate pool hashrate of 3,8 GH/s.

So either my maths are totaly wrong, the pools hahsrate display is totaly wrong, or houston, we have a very big problem...

pools hashrates are notorious for being wrong.

So what du you think the real hashrate of that pool is?
3 GHash, 2,5 GHash?

EDIT:

Just looked at the generation TX of last 100 Blocks:

From 86 of them the destination address was the same, which i assume is the pools address.
This means, although this is only a very rough estimations:

86% of the networks hashing power lies by this pool, and here we are: housten, we have a very big problem...

EDIT2:
Looking at the stats prooves this: http://www.coinmine.pl/qrk/index.php?page=statistics&action=blocks
Block Overview
   Gen Est.    Found    Valid    Orphan    Avg Diff    Shares Est.    Shares    Percentage    Amount    Rate Est.
All Time    308,642    176345    175056    1289    1,101.2280    48194144    67308505    139.66%    25459277.001874    57.14%
Last Hour    120    105    105    0    5,510.0801    144640    199012    137.59%    1680.0195    87.50%
Last 24 Hours    2880    2577    2576    1    5,958.9464    3837562    4721686    123.04%    41220.21616    89.48%
Last 7 Days    20160    17745    17743    2    4,733.0264    20994522    19637075    93.53%    283927.71958001    88.02%
Last 4 Weeks    80640    65543    65520    23    2,493.8772    40849708    44652365    109.31%    1643143.30782    81.28%
Last 12 Month    967680    176345    175056    1289    1,101.2280    48194144    67308505    139.66%    25459277.001874    18.22%

EDIT3:
And just to be clear:

I personally have no reason to distrust the pool operator, but thats a thing that needs to be fixed ASAP or btc38 will never come, and maybe other trading platforms will suspend Quark, which would definatly be a pity.

[gnode]

Could someone please prove my following maths wrong:

hash_rate = (blocks_found/expected_blocks*difficulty * 2^24 / 30)

I looked at the block window from block 456520 onwards (approx 2013-12-14 20:10:18 GMT)
Lets look at a 5 minute window, which should get us 10 blocks.
Depending if we start this window at 20:10:00 or 20:10:18 we get 10 or 11 blocks "solved" in that time, so lets take the middle and take a factor of 1.05

So we have:

hash_rate = 1.05 * 6411.26760900 * 16777216 / 30
hash_rate =~ 3764712752 =~  3,76 GH/s

So we have approximatly a network hashrate of 3,67 GHashes per second.

http://qrk.coinmine.pl/ showed at that time an approximate pool hashrate of 3,8 GH/s.

So either my maths are totaly wrong, the pools hahsrate display is totaly wrong, or houston, we have a very big problem...

pools hashrates are notorious for being wrong.

So what du you think the real hashrate of that pool is?
3 GHash, 2,5 GHash?

EDIT:

Just looked at the generation TX of last 100 Blocks:

From 86 of them the destination address was the same, which i assume is the pools address.
This means, although this is only a very rough estimations:

86% of the networks hashing power lies by this pool, and here we are: housten, we have a very big problem...

EDIT2:
Looking at the stats prooves this: http://www.coinmine.pl/qrk/index.php?page=statistics&action=blocks
Block Overview
   Gen Est.    Found    Valid    Orphan    Avg Diff    Shares Est.    Shares    Percentage    Amount    Rate Est.
All Time    308,642    176345    175056    1289    1,101.2280    48194144    67308505    139.66%    25459277.001874    57.14%
Last Hour    120    105    105    0    5,510.0801    144640    199012    137.59%    1680.0195    87.50%
Last 24 Hours    2880    2577    2576    1    5,958.9464    3837562    4721686    123.04%    41220.21616    89.48%
Last 7 Days    20160    17745    17743    2    4,733.0264    20994522    19637075    93.53%    283927.71958001    88.02%
Last 4 Weeks    80640    65543    65520    23    2,493.8772    40849708    44652365    109.31%    1643143.30782    81.28%
Last 12 Month    967680    176345    175056    1289    1,101.2280    48194144    67308505    139.66%    25459277.001874    18.22%

EDIT3:
And just to be clear:

i personally have no reason to distrust the pool operator, but thats a thing that needs to be fixed ASAP or bter38 will never come, and maybe otehr trading platforms will suspend Quark wich would definatly be a pity.

talk to Feeleep he is a member here and runs the pools.

[r3wt]

I just doubled down on Quark. These prices are AMAZING!

Why there isn't a competent Quark exchange boggles the human mind.

If you are a developer, and have the free time to code PLEASE MESSAGE ME.

TRANSLATION: I'm desperately trying to escape my Quarkcoin investment, all it does is lose!

[coinerer]

Tom Cruise supports Quark!

Some scientists started to looking for pure Quarks in cosmic radiations. Is not simpler to buy Quarks at some of the exchanges?

[Neisklar]

---snip---

EDIT:

Just looked at the generation TX of last 100 Blocks:

From 86 of them the destination address was the same, which i assume is the pools address.
This means, although this is only a very rough estimations:

86% of the networks hashing power lies by this pool, and here we are: housten, we have a very big problem...

EDIT2:
Looking at the stats prooves this: http://www.coinmine.pl/qrk/index.php?page=statistics&action=blocks
Block Overview
   Gen Est.    Found    Valid    Orphan    Avg Diff    Shares Est.    Shares    Percentage    Amount    Rate Est.
All Time    308,642    176345    175056    1289    1,101.2280    48194144    67308505    139.66%    25459277.001874    57.14%
Last Hour    120    105    105    0    5,510.0801    144640    199012    137.59%    1680.0195    87.50%
Last 24 Hours    2880    2577    2576    1    5,958.9464    3837562    4721686    123.04%    41220.21616    89.48%
Last 7 Days    20160    17745    17743    2    4,733.0264    20994522    19637075    93.53%    283927.71958001    88.02%
Last 4 Weeks    80640    65543    65520    23    2,493.8772    40849708    44652365    109.31%    1643143.30782    81.28%
Last 12 Month    967680    176345    175056    1289    1,101.2280    48194144    67308505    139.66%    25459277.001874    18.22%

EDIT3:
And just to be clear:

i personally have no reason to distrust the pool operator, but thats a thing that needs to be fixed ASAP or bter38 will never come, and maybe otehr trading platforms will suspend Quark wich would definatly be a pity.

talk to Feeleep he is a member here and runs the pools.

Will do, and as said to my knowledge there is no reason to distrust him.

Funny thing is now: all that talking about some few people hold what 60% or so of the coins is now obsolete, since Feeleep holds them currently ALL.

[gnode]

Except he pays out to each pool member. You can see that in the transaction history.

[Netnox]

Want to get rich? Make a Quark exchange that works properly! It's volume will make you rich.

[FlipPro]

Want to get rich? Make a Quark exchange that works properly! It's volume will make you rich.

+9000

Already working on one myself.

[georgem]

Want to get rich? Make a Quark exchange that works properly! It's volume will make you rich.

+9000

Already working on one myself.

me too ...  

that's what I like about the quark community, everyone is busy doing things.

[Neisklar]

Except he pays out to each pool member. You can see that in the transaction history.

I think you didn't understand what i meant he holds them ALL:

He has currently control of ALL Quarkcoins available, yours, mine, everyones, he could i think create arbitary transactions, generate coins at his will. (I'm not sure about the last part)

He has a high reputation so of course he will not do that, but this is not healthy for a coin. It's a permanent 51% "attack".

[gnode]

Except he pays out to each pool member. You can see that in the transaction history.

I think you didn't understand what i meant he holds them ALL:

He has currently control of ALL Quarkcoins available, yours, mine, everyones, he could i think create arbitary transactions, generate coins at his will. (I'm not sure about the last part)

He has a high reputation so of course he will not do that, but this is not healthy for a coin. It's a permanent 51% "attack".

What you say could only be true if he never paid out to the pool members. He has paid so he has very few coins.

[matt4054]

The >51% situation is the same for many alts (think of "rare" MM coins like DVC or IXC and BitParking, they also have >90%).

Of course it's suboptimal, but it doesn't make the coin worthless. It merely means that miners have decided to trust a single entity to pool their efforts. Nothing more, and, granted, nothing less: trusting a central entity is not the aim of crypto coins IMO, at least not the original Bitcoin.

Miners could, theoretically, at any time, move away from CoinMine.pl and solo mine and/or switch pools, if they no longer trust them, or if they are no longer pleased by their policy.

[Neisklar]

Except he pays out to each pool member. You can see that in the transaction history.

I think you didn't understand what i meant he holds them ALL:

He has currently control of ALL Quarkcoins available, yours, mine, everyones, he could i think create arbitary transactions, generate coins at his will. (I'm not sure about the last part)

He has a high reputation so of course he will not do that, but this is not healthy for a coin. It's a permanent 51% "attack".

What you say could only be true if he never paid out to the pool members. He has paid so he has very few coins.

You still don't get it.
Please google (Bitcoin) 51% attack. For Bitcoin this imho never happened, but it hink FTC was one of the coins who already had one

[r3wt]

Want to get rich? Make a Quark exchange that works properly! It's volume will make you rich.

+9000

Already working on one myself.

me too ...  

that's what I like about the quark community, everyone is busy doing things.

yeah, running their mouths about how Quarkcoin isn't a scam.

[Neisklar]

The >51% situation is the same for many alts (think of "rare" MM coins like DVC or IXC and BitParking, they also have >90%).

Of course it's suboptimal, but it doesn't make the coin worthless. It merely means that miners have decided to trust a single entity to pool their efforts. Nothing more, and, granted, nothing less: trusting a central entity is not the aim of crypto coins IMO, at least not the original Bitcoin.

Miners could, theoretically, at any time, move away from CoinMine.pl and solo mine and/or switch pools, if they no longer trust them, or if they are no longer pleased by their policy.

Of course doesn't make this the coin worthless, but imho in the longer run, for a stable and widely accepted coin, this must be fixed.

[matt4054]

Of course doesn't make this the coin worthless, but imho in the longer run, for a stable and widely accepted coin, this must be fixed.

True, especially for a coin whose motto says "super secure"

[gnode]

Except he pays out to each pool member. You can see that in the transaction history.

I think you didn't understand what i meant he holds them ALL:

He has currently control of ALL Quarkcoins available, yours, mine, everyones, he could i think create arbitary transactions, generate coins at his will. (I'm not sure about the last part)

He has a high reputation so of course he will not do that, but this is not healthy for a coin. It's a permanent 51% "attack".

What you say could only be true if he never paid out to the pool members. He has paid so he has very few coins.

You still don't get it.
Please google (Bitcoin) 51% attack. For Bitcoin this imho never happened, but it hink FTC was one of the coins who already had one

No I don't think you understand the 51% attack. Feeleep doesn't control all the coins, once he pays them for example to me and I put them in my wallet he can't do anything with those coins.

[x0rcist]

Actually i already got away from this sinking ship but i cant resist to say that the guys responding in this topic are as strong as the almighty quark coin.. trolololol  

[Neisklar]

Except he pays out to each pool member. You can see that in the transaction history.

I think you didn't understand what i meant he holds them ALL:

He has currently control of ALL Quarkcoins available, yours, mine, everyones, he could i think create arbitary transactions, generate coins at his will. (I'm not sure about the last part)

He has a high reputation so of course he will not do that, but this is not healthy for a coin. It's a permanent 51% "attack".

What you say could only be true if he never paid out to the pool members. He has paid so he has very few coins.

You still don't get it.
Please google (Bitcoin) 51% attack. For Bitcoin this imho never happened, but it hink FTC was one of the coins who already had one

No I don't think you understand the 51% attack. Feeleep doesn't control all the coins, once he pays them for example to me and I put them in my wallet he can't do anything with those coins.

He can block them from ever be spend for example:)

[matt4054]

He can block them from ever be spend for example:)

Go for a win-win: team-up with him and double (triple, quadruple, n-uple...) spend at will

It still requires clever engineering to actually profit from double spend attacks, even with 90% hashrate under control, you can't force every node on the network (thinking of the exchanges) to think and accept whatever you would like them to.