Questions tagged [mining-pool-shares]

Shares refers to a method for accounting mining pool contributions. It does not cover company shares.

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43
votes
2answers
76k views

What is a share? Can I find it while mining solo, or only when pool mining?

In mining, what is "a share"? When mining solo, do I "find shares"?
41
votes
6answers
213k views

What are stale shares and what can I do to avoid them?

When I mine at a pool, only a part of my shares are accepted. There is a small percentage which is marked as stale. As far as I know I only get paid for accepted shares, so what are these stale ...
19
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3answers
12k views

What is proof-of-work?

Please explain the proof-of-work concept. And how does it relate to Bitcoin mining in general, and to the proofs of work (aka shares) of mining pools?
15
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3answers
23k views

How do mining pools work?

I understand the following Pooled mining is a mining approach where multiple generating clients contribute to the generation of a block, and then split the block reward according the ...
12
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1answer
48k views

What does "accepted shares" mean?

I am running GUIMiner and Triplemining server. I currently have just under 100 "shares" accepted. What does this mean? What are accepted shares used for? How do accepted shares relate to "blocks"? ...
7
votes
1answer
4k views

Cheating on pooled mining

What is stopping me from hacking the mining software such that if I do happen to get the right hash I keep it for myself, but if not then I just submit my work done and get my share of the mined ...
7
votes
2answers
16k views

How much is a mining pool share worth on average?

I know that mining pool shares have no value on their own, but it should be possible to find an average value based on the pool's average payout per share. This site describes the expected payout per ...
6
votes
1answer
750 views

How do mining pools figure out the hashing speed of the connected miners?

How do mining pools figure out the hashing speed of the miners connected to it?
5
votes
2answers
2k views

Why would a miner mine with a difficulty other than 'the' difficulty?

Why would a miner mine with a difficulty other than the network difficulty? Both of these questions describe miners mining in such a way. What's the benefit of this? What even does it mean?
5
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2answers
711 views

Miner speed conversion

What is the exact ratio one would use to convert Miner speed from Hashes per second to Shares per second, assuming Difficulty 1 shares?
5
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2answers
2k views

How does solving reduced difficulty hashes contribute to solving a block? [duplicate]

In pool mining, it's my understanding that miners solve a reduced difficulty hash which proves that work is being done and also simultaneously helps solve a block. How is this computationally ...
5
votes
1answer
2k views

mining with one client on multiple mining pool

Is it possible to mine on different mining pool using one client? Ok, I know that this sounds ridiculous, but my thoughts are as follows: if I already calculated a lot of hashes for a work for one ...
5
votes
2answers
5k views

What does "PROOF OF WORK RESULT: false (booooo)" mean when mining?

I'm mining (Litecoin miner, shouldn't matter) with minerd, and got this in the output: [2011-10-13 07:12:02] thread 1: 5524 hashes, 0.96 khash/sec [2011-10-13 07:12:02] thread 0: 5415 hashes, 0.95 ...
5
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3answers
70k views

How many shares need to be mined before a block is released?

How many shares need to be processed on average before a block is found? I know that "luck" can be a huge factor which is why it's not quite as simple as that. I ask because I'm starting my own pool ...
4
votes
1answer
429 views

How does a share help in the discovery of a new block?

https://en.bitcoin.it/wiki/Pooled_mining: A share is awarded by the mining pool to the clients who present a valid proof of work of the same type as the proof of work that is used for creating blocks,...
4
votes
2answers
13k views

What is the relationship between hash rate and accepted shares?

Specifically this question is about Litecoin, but I suspect the answer would apply to both. Say you have a rig mining at 700Kh/s (LTC). It seems that you get, more or less, a one or a few accepted ...
4
votes
1answer
1k views

What is the correct algorithm to calculate worker & pool hashrate

I need to display the pool and worker hashrates on my website. The pool uses PSQL.
4
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1answer
2k views

Why GPU (cgminer) scrypt mining generates so many false-positive nonces?

I understand that GPU might have less accurate results of real numbers because speed/performance is the target. But I don't understand why it also occurred in integer numbers. Taking mining algorithm,...
3
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3answers
4k views

Does the size of a pool affect the number of invalid shares?

Does the size of a pool affect the number of invalid shares? If so why does it?
3
votes
1answer
11k views

What's the advantage to requesting a higher difficulty when mining?

I've seen pools recommend higher difficulties for higher-speed hardware - what's the benefit (for either the pool or the miner) in doing so?
3
votes
1answer
409 views

Keeping valid shares for it's own when mining in a pool

How does a mining pool insure that the miner who will find the valid share for the current block will not use it for his solo mining?
3
votes
2answers
10k views

Shares accepted vs hash rates?

I recently started mining LTCs, and because Im using a Nvidia card (GTX 650Ti) I have been trying out different settings in order to maximize efficiency with the hash rates. I have noticed though ...
3
votes
1answer
114 views

How is the proof of work actually proved in the mining pool?

When mining Bitcoin in a mining pool, we share the coin for percentage of the work we have contributed. But how is the work "proved". For example, if the mining software reported "it ...
2
votes
1answer
959 views

If each miner has a different share difficulty in a PPS pool, how should I calculate and reward the relative effort of each?

For discussion purposes, suppose I have an ASIC miner, several GPUs and a CPU botnet all mining with different difficulties. When a share is returned to the pool, at what difficulty threshold should ...
2
votes
2answers
25k views

How do I calculate mining profit from shares in Litecoin?

I'm getting around 4 shares a minute (mining at 100Mh/s but I don't mind that much because the number of shares is what actually matters, right?) and since LTC/USD is 2 and it pays 50 LTC for every ...
2
votes
2answers
5k views

Does cpuminer do its work?

I have a question about using cpuminer to mine bitcoins. I know that it's not efficient, but I'm not about making any money from it (obviously), I just want to mine some fractions of a bitcoin. Now, ...
2
votes
2answers
186 views

How does the mining pool know our hashrate/our share?

Scenario: Person A: has a good mining rig and run for 24 hours and produces: 1000 mega hashes, but found only 1 share. Person B: has a bad mining rig and run for 24 hours and produces: 1 mega hash, ...
2
votes
1answer
515 views

What is Multi-PPS (Pay Per Share)?

I know the original proposal on bitcointalk is here, but can someone explain it more succinctly? How does Multi-PPS work? Can it actually prevent mining centralization?
2
votes
1answer
170 views

When ASICs generate a share, is it always at difficulty 1?

Are they preset to only return difficulty 1 shares when the find a nonce? Then mining software verifies if it meets current target difficulty? Or, if given a different target difficulty, will the ...
2
votes
1answer
1k views

p2pool: Is it setup correctly? "???" in efficiency

I have configured p2pool, bitcoind and bfgminer for mining, and everything appears to be working normally (i.e., no errors are reported). However, I've been mining for over three days already at 2GH/...
2
votes
2answers
769 views

Who decides whether a submitted share leads to a valid block or not?

If a share does not lead to a valid block they would not require to be sent to the server? Or is the only purpose of the share sent to the server to show that the client did some work?
2
votes
2answers
3k views

Effects of mining pools paying for stale shares/work

Some mining pools pay for stale shares / proofs of work, and others don't. If a pool pays for stale shares, how does it affect individual miners? What about the pool? Related: What are stale shares ...
2
votes
1answer
700 views

Share difficulty and hashrate

Can anybody explain relations and formulas between mining share difficulty, target and hashrate? Thank you.
2
votes
1answer
2k views

What does the Accepted/Rejected mean?

I'm using a Bitcoin Miner on Btc Guild. It's showing 12 Accepted, 0 Rejected. What does that mean?
2
votes
1answer
10k views

What is a "share rate"?

What is a "share rate" one can find in a mining pool dashboard? I understand what a hash-rate is, and how that applies to myself (miner), as well as to the pool or the network. I also understand to ...
2
votes
0answers
48 views

Cant understand how share difficulty affects my chances in solo mining with a pool

So obviously I am not solo mining bitcoin but I think the underlying principles are the same so you guys could help me out here. I am solo mining ergo on a solo pool (herominers solo pool) What I do ...
1
vote
1answer
4k views

When mining, all my shares are rejected. Why am I not getting any accepted shares?

This applies for when I mine anything (Litecoins, Dogecoin, etc.) I have a Radeon HD 6670 (mining @ 100 Mh/s according to cgminer) and it isn't overclocked or anything. Kind of puzzled as to why this ...
1
vote
2answers
327 views

How many zeros must be in a bitcoin share for a pool to accept it?

In the binary representation of the hash. Now the hash should be about 80 zeros. In the share - less, but how much exactly? At the dawn of bitcoin in a share, it was enough to have 32 zeros. Now the ...
1
vote
1answer
3k views

What does DOA stand for?

What does DOA stand for? I've seen this in the context of P2Pool stales, specifically here.
1
vote
1answer
115 views

Will there be a problem if bdiff and pdiff are slightly different?

Considering bitcoin target is 0x00000000FFFF0000000000000000000000000000000000000000000000000000 and pool target is 0x00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF. Won't pool miner ...
1
vote
2answers
10k views

How do block rewards work with a mining pool?

I understand there are a number of different schemes for sharing rewards. My question is about the block reward itself, and how it's shared. If only one miner (typically a pool) can find a reward, ...
1
vote
1answer
488 views

Buying stocks or bonds with bitcoin [duplicate]

Is it possible to buy stocks online with bitcoin.. the stocks listed on NYSE, NASDAQ and London Stock Exchange among others ?
1
vote
1answer
1k views

Solving a block and share relationship [pool mining]

I have a somewhat odd question. I am currently pool mining and it is telling me my best share and the difficulty (this is an altcoin but same question applies). My miner is telling me my best share ...
1
vote
1answer
5k views

What is the utility in the cgminer statistics

While digging through the API of the cgminer I noticed that there is a value which I could not figure out what it means: the utility. What does it stand for, what are common values and how is it ...
1
vote
1answer
86 views

How do I submit hashes to a stratum URL?

I have block hashes mined from bitcoind. I want to submit it to a pool. How do I do that?
1
vote
1answer
2k views

How does the pool know the share hashes are calculated and not cheated?

Miners calculate share hashes and submit them to the pool for their proof of work. And if the share hashes leads to a correct block hash in terms of difficulty, everybody in the pool gets paid ...
1
vote
1answer
2k views

How might I reduce the percentage of rejected shares using an Avalon 741 with NiceHash?

I have an Avalon741 running on NiceHash with CGminer and I'm new to mining. The command I'm running is as follows: sudo ./cgminer -o stratum+tcp://sha256.eu.nicehash.com:3334 -u <address> -p d=...
1
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1answer
75 views

How can a share be 'harder'

I am on a pool that asks you to select a difficulty for your miner. How can some shares be harder than others if they are just a hash?
1
vote
1answer
485 views

Antminer U1 running on raspberry pi not accepting shares

I'm new to bitcoin mining and am trying to figure everything out still. My Antminer U1 running on my raspberry pi using cgminer is not accepting any shares, and doesn't appear inside of the mining ...
1
vote
1answer
6k views

Why doesn't the number of shares in my miner match the number of shares reported by my pool?

It was my understanding that I have found a share, when the miner reports accepted:...(yay). However, the number of shares I'm being credited with in my pool is much lower than the number in the ...