This threat is somewhat old, but I am wondering if there are any updates on this topic.

You are raising a very interesting question, and I have been thinking about it myself.

Developing something like this would be not only profitable for the users, but also for the Terracoin community, because currently the difficulty is fluctuating, while a widespread use of a tool as you describe could generate more stability.

I am not aware of such a tool (and if there is one, I would love to hear about it!), but I would look for one of the poolhopping tools, something like bithopper, and try to tweak it for this purpose. I think the community would appreciate anyone making such a change/patch.

So, is there an implicit assumption that n and D are linearly related?

You see, I have no problem with the observation that finding a block has a Poisson distribution. But the "proof" provided as it stands is simply wrong, unless D is a function of n,  and \xi is the limit of their ration when n tends to infinity.

Does hopping (in an optimal way) not have a very specific pattern that can be detected (specifically, by means of the time of the hopping)?

Raulo, you have a mathematical error on page 1, in equation (4).

Your \xi depends on n. Consequently, you cannot pass to limit only in part of the expression.

The expression q:=1- (1/2^32* D)  is a real number < 1. Consequently, Q(n)=q^n -->0 as n --> \infty.

This makes perfect sense, because the probability that you will "almost surely" (in the sense of probability theory) find a block if you wait long enough (infinitely long).

First, I wanted to thank you for providing some explanation. I am sorry if any of this discussion appeared to you as unproductive. I can assure you that I found it very interesting and informative.

I am particularly grateful for sharing with me the link https://bitcoil.co.il/pool_analysis.pdf about the various pool reward systems -- it brings me back my kindest memories as an undergraduate student. I had a great professor for Probability Theory.

I wanted to toss out another, quote open-ended question (and again, none on this is directed against you or your pool in any way): Is there a "fair" way of rewarding miners without punishing those who may stop mining from time to time due to technical difficulties, faulty hardware, etc.?

I was not suggesting that bitparking is out to rip off anyone. I simply asked a question about an alternative way of recovering not only costs, but making profit for bitparking, namely, by retaining all revenue from alternative coins mined in the process, but not charging any fees for bitcoin mining.

If the information provided earlier is correct (that these alternative coins provide another 10% revenue), the pool operator would be much better off keeping this revenue, and not charging any fee for bitcoin mining.

My questions is: What is the reason that this is not how the pool operates? It would be a win for the operator (more profit), and a win for all miners, because the opportunity to do pooled mine at 0% fee would attract many miners. So, if the information provided earlier is correct, this would be a win-win situation.

If so, then why do you charge any fees on bitcoins?

You could instead keep some or all of the rewards from these other currencies, and have a no fee BTC pool. Or at least offer such an option.

So, if converted (at today's rates) to bitcoins, what is the total reward per share on a PPS system (assuming 5% fee on bitcoins and 2.5% on all others)? In other words, what is the sum, in bitcoins, of all rewards received?

Can you elaborate on what it means to mine them along with my bitcoins.

What was suggested here (and I am not sure if it is correct) that the same computation can be used for both mining bitcoins and other cryptocurrencies. In other words, that by putting addresses for more than one currency, I will not lose some of my computational capacity to mining things other than bitcoins.

If so, then for 1 share that I submit, I am to receive both 1 unit of reward for bitcoin mining, but also 1 unit of reward for each of the other coins.

Is this how it works?

If not, then now it works exactly in terms of rewards?

So, if I submit 1 share, then I will get each of the rewards listed, in the respective currencies?

Can you explain how these rewards (in namecoins, devcoins, and ixcoins) are being calculated?

So, what happened with my rewards for these shares in alternative coins?

I received rewards only in bitcoins, with no indication of any other rewards.

Can you explain what you mean by "at once"?  If you use your GPU for one, you are not using for the other.  In other words, while your GPU is mining namecoins, it is not bitcoins, and vice versa. So, unless namecoin is more economic to mine, you are actually losing money when use your rig for mining something other than bitcoins. And if namecoin is more economic, then one should be mining that all the time.

Am I missing something?

By the way, http://coinotron.com has a large variety of coins to mine.

EMC has:
-- a mining speed of 2500 GH/s (see https://eclipsemc.com/block_stats.php)
-- over 2000 miners
-- 3 servers
-- email notifications of changes and deposits
-- email notifications for failing miners

To be clear, I am not advocating for EMC (or any other pool), rather, I am trying to understand what bitparking has to offer that EMC does not have.

While the changes may be justified with respect to the PPS fees, I am still puzzled about the DGM fees. How can other pools survive without imposing any fees on DGM?

To put it differently, what it is that bitparking offers that EMC does not with respect to the DGM?

I expect that you would lose all the profit from the transit costs and the wiring fees.

This has something to do with the ability to withdraw funds. CaVirtEx seems to be the only exchange to offer direct deposit and emailing funds -- in other words, it is the only exchange that really has some understanding of the Canadian banking system/reality, which is, in many ways, backward compared to the EU.

--G

The discrepancy between the prices is quite interesting.

The question is, I guess, what one wants to do with the bitcoins after the exchange. Some exchanges charge very high fees for sending you the funds.

Can you find out:

(a) core clock (MHz) and memory clock (MHz) when this happens?

(b) temperature when this happens?

(c) fan speed when this happens?

There are a number of programs (e.g. GPU-Z) that can help you with checking these parameters.

Once you post these, perhaps other members or me can help you.

Best,
G