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Questions tagged [mining-pools]

This tag should be used for questions referring to mining pools. A mining pool is a way of sharing the work needed to find a block. Miners are rewarded in proportion to the amount of computing power they contribute to the problem, with various ways of calculating returns.

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discerning the location of miners

For a given mining pool, is it possible to learn the distribution of the countries in which miners are located? My understanding is that while it is possible to identify the locations of bitcoin ...
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SHA-256 algorithm

I downloaded the SHA- 256 algorithms form the following link [https://github.com/progranism/Open-Source-FPGA-Bitcoin-Miner][1] The problem is that they use altpll IP which is an Altera mega function ...
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How are nonces decided in mining?

I know that when I create a new block in a Bitcoin network, I change the nonce value to generate a block. The question is, do you randomly assign the values you assign to nonces? Or do you start with ...
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I got a coinbase transaction and I don't know where it comes from

I received a small payment from a coinbase transaction, but I haven't been mining nor I have signed up on a mining pool. Does this happen when someone accidentally sets my address instead of theirs ...
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Do miners receive a reward when solving the hash for the next block or when validating the block, or both?

Let's say I want to make a transaction to my friend Bob. When I send 10 BTC to Bob, a transaction is signed with my signature and sent to the network. What happens next? Do miners check if this ...
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Does PPS reward depend on specific block difficulty?

How is reward per share calculated on PPS payments system? Does it depend on specific block difficulty or average difficulty per day/week/month used? If I have mined two successive blocks with ...
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1answer
33 views

Funds disapprearance [closed]

I stored 0.0154 BTC in my blockchain for mining purposes and next morning I found my balance to be 000, what does that mean? Are my coins lost or stored somewhere else?
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35 views

The difficulty of pool

When I connected to f2pool,I received the difficulty of pool(8192 decimal). How can I use this value to confirm the hash I calculated? Is this just like the solo mining? "current_target = ...
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30 views

The prevhash of stratum

I received the notification when I connected to f2pool. { "id": null, "method": "mining.notify", "params": [ "BAvw7mAiGPyP6kqdSoJ65a", "...
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2answers
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Could mining centralization be countered by checking if the node connects to many ASICs instead of one?

In a mining pool, many ASICs and GPU/CPU from all around the world connect to the pool's node. Is it possible to force every node's client software to check if a node is connected to just one ...
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1answer
35 views

Troubles with pool mining: bad-txnmrklroot

I've setup node-open-mining-portal for development purposes. I start mining, but coin daemon keep rejecting newly mined blocks. After some edits I managed to get raw block before submitting and here ...
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How did Extranonce2_size change?

From stratum,I know that the coinbase is composed of "Coinb1 +Extranonce1 + Extranonce2 + Coinb2". How did Extranonce2_size change ? Will the Extranonce2_size change when I connect to a pool?
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What is the difference between PPS+ and PPS?

Some pools do offer such a payment method as PPS+. This method is claimed as better than the PPS method, it should insure against losses on orphans and blocks with bad luck. But this explanation is ...
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1answer
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Does xmr-stak use Stratum?

Using Wireshark to analyze packets sent by xmr-stak, I found them to be inconsistent with those of Stratum (https://en.bitcoin.it/wiki/Stratum_mining_protocol). From Wireshark: { "method": "login",...
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1answer
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Do we Need Pay Tax for Mining for US Govt

Do you need to pay Taxes for US Govt for doing Bitcion Mining.?? I am in Singapore and mining through one of my friend in US. Will the US Governement will issue TAX on My Name..?? Is it Legit ..? ...
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How to prevent 51% attack on newly created coin [duplicate]

I am interested how bitcoin managed to prevent 51% attack in the beginning? I am about to create my own coin and i want miners to mine blocks. but The problem is I am afraid  51% attack might destroy ...
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1answer
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Why not to mine more efficient?

I'm a kinda newbie here. But this is what I completely can not understand. If every single miner have to 'arrange' transactions and then compute a SHA-256 function of a given memory chunk, and if ...
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3answers
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Why can't mining pools provide fake transactions within the generated blocks?

Suppose Alice wants to add a fake transaction where she receives X ammount of BTC. I understand that in order to add that transaction to the blockchain she would have to compete against all the other ...
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2answers
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Why were miners still mining BTC at times when BCH was 2-4x more profitable to mine?

From August 2017 until mid November (prior to BCH's hardfork with the difficulty adjustment algorithm) there have been some occasions (notably end of August, beginning of October and mid November ...
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1answer
38 views

Is it a problem that miners participate in a pools? [duplicate]

I am talking about miners centralization with large pools. Is it a problem? I think there are some possible ways to prevent miners from pooling. For example add miner signature to the block header, ...
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How does Bitcoin 0.16 affect mining pool development, especially the introduction of BIP173 (Bech32)

I am developing a Bitcoin mining pool . I am using getBlockTemple to get from Bitcoin node, the template including the transactions and default witness commitment. I am using the following options ...
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1answer
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nTime rolling is just an optimization for large/fast pools, correct?

Need to confirm my understanding of nTime rolling... It's used to give the miner more options to mine without needing to request more work from the pool, by incrementing the timestamp. However, given ...
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Is it possible to simulate a mining pool with localhost in windows?

All I want to do is run the miner in CPU (without mining any real coins, no online pool, and no wallet) without connecting to any online miner. I tried using XMRig miner to do a localhost run but ...
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getblocktemplate returns out of memory

I tried on a few different machines, vps etc. Also, few different altcoin litecoin included. Most were with 4 GB of ram, if this matters. Every time when I enter the command getblocktemplate , I get ...
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1answer
585 views

Why has BCH not received a 51% attack yet?

BCH right now has around 10% of BTC total hashrate. There are multiple pools that control 10%+ of the total BTC hashrate why haven't any of those just allocated a few hours of hashrate to do a 51% ...
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Can I get the same stats as are on blockchain.info and btc.com by running a full node?

There seem to be some discrepancies between blockchain.info and btc.com, specifically I am looking to extract the following info: "Relayed By", there was a block that was listed as unknown on ...
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2answers
164 views

How to obfuscate public IP of Mining pool?

How to obfuscate the public IP address of a mining pool, to protect it against DDOS attacks? I have a yiimp mining pool running on a cloud server. I would like to secure it with HTTPS and anti-DDOS ...
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1answer
238 views

Does BTC.com support ASICBOOST

Does the www.btc.com pool support Asic Boost? Does it have to support it for me to use Asic Boost on it? If it doesn't support Asic Boost which pools do?
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1answer
37 views

Mining-your-tx as a Service?

When I'm sending my transaction, it's "competing" with other transactions for being mined. Are there any mining pools with the following service: I'm giving them my address I'm topping up my balance ...
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2answers
258 views

Bitcoin Solo Mining with bfgminer

I am trying to do solo mining with bfgminer but it does not seems to be working ./bfgminer --url 127.0.0.1:18443 --user test --pass test On bitcoind logs I can see the request logs 2018-05-14T10:...
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1answer
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How do we know which miner or pool mined a block?

There are websites that talk about each mining pool's total % of hashrate. I think they do that by calculating what % of the last X blocks were mined by a particular miner/pool. But how can we know ...
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88 views

How much is a ZCash Share worth in ZEC on average?

I want to calculate how much a share is worth in ZEC on average. I have already looked at the answer of this question, but it seems that the answer there does not work for ZCash, hence my question. ...
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Hashes and payment

I’m still learning about mining and all, but there’s one thing I still don’t understand. I was checking out the hashflare site and came across the store where you can buy hashes. What I don’t get it, ...
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1answer
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Is it possible to get rid of mining pools and therefore get a truly decentralized bitcoin?

There are some criticism that PoW of bitcoin and ethereum protocol suffers from the centralization of mining pools, and dPos such as EOS claimed to be more decentralized in practice than bitcoin and ...
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1answer
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Computta stealing bitcoin and behave like its nothing [closed]

Mining with https://computta.com/ I had balance of 0.54+ mBTC, every hour i checked and i have written them down in my book. Suddenly since this week they made my computer balance 0.529 mBTC but on ...
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1answer
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Are Bitcoin and Ethereum really de-centralized? Or is federated a better term?

By looking at the bitcoin and ethereum mining pool hashrate distribution I feel that only 5-10 relevant full nodes exist. So it's more like a federated system among those. Am I seeing something wrong ...
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1answer
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Why don't private blockchain networks that do not charge for transactions charge a fee when processing ethereum/ proprietary token on the network?

I ask this questions because there seems to be 2 flavors of blockchain: 1. Public think bitcoin and ethereum. 2. Private hyperledger, SAP Leonaro, etc. The public network charges for transactions to ...
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1answer
52 views

Where in the world are blocks mined?

Is there any source of data about where in the world are blocks being mined? Is that data stored for each block?
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145 views

Calculating Hashrate / Threads correlating to Average Block Time

Wondering if anyone can provide some detailed fact based information on how pool mining using Fixed Difficulty affects the probability of N number of shares found over T time given the variables X ...
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How Secure Are The Big Mining Pools?

One argument against the 51% attack, is that the every would see it coming due to the increase in price. If the hacker was to infect enough mining rigs, this would also make it possible. Therefore, I ...
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mining pool simulation

Does anyone know how to simulate the following scenarion in Matlab using monte-carlo simulator: A is a miner. He has hashrate b. If he can generate the desired hash, it will create FPoW. Plot the FPoW ...
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1answer
61 views

Does a transaction in Bitcoin Mempool reach many miners during mining or only a single miner?

I'm trying to understand the logic around the Mempool. What I understand is a miner will pick transactions based on an incentive given by the sender, i.e. a fee, so that the higher fee, the faster ...
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2answers
51 views

How to put pool name in a Bitcoin Block?

If someone access blockchain.info, see blocks and Pool name who finded. I want know how sign this? Thanks
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Analyzing Memory Pool COngestion

How do I analyze degree to which Bitcoin network’s exponential block distribution (poisson variant) and throughput limitation (high tps) contribute towards historical (and potentially future) memory ...
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1answer
355 views

need the stratum url for zpool for sha-256

I'd like to use Zpool with my S9. I need the stratum URL to use for sha-256. They give examples for X11 and Scrypt. For example I could use the following: Bitmain D3 Settings: URL: x11.mine.zpool....
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65 views

unconfirmed testnet transaction

I implementing the dashcoin on a website. I had broadcasted a transaction at: https://test.insight.dash.siampm.com/address/yehZoVH57FwDFC7vBRGK5ptuYHG9DfL2cf an few hours ago This address above is ...
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How can you differentiate between a segwit node/miner and a non segwit node/miner?

Is there any way to differentiate between a segwit node/miner and a non segwit node/miner?
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1answer
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Where can I get a visual example of the entire bitcoin network starting from physical network to the overlay network

*Note I am not a technical person so excuse any misunderstandings on my part here. I am looking to get a sense of how the entire system looks like as a whole starting from the physical hardware (such ...
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Unomp Error: bind EADDRINUSE

I have created new altcoin and iam trying to solo-mine in CPU all coins in mainnet using unomp. I am running daemon and unomp on the same computer. I managed to solve most issues but stuck here. I am ...
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1answer
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If the top 6 mining pools started mining empty blocks, what would happen?

I read that it was possible to mine empty blocks, so that miners can still earn when there are no transactions in the network. What would happen if the top mining pools started mining empty blocks ...