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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148 views

How does MPOS communicate with stratum server?

I'm setting up MPOS. There are 3 stratum server options: stratum-mining, NOMP, and CoiniumServ. How does MPOS talk with stratum server? AFAIK, MPOS does not speak stratum protocol. Is it through the ...
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Does getting shares when mining mean that I have earned a reward?

So I have 13 Total Shares (Non Rejected) and my pool is Mining Pool Hub. It does not show that I have gained any Ethereum when I go to Dashboard (Under Ethereum) on Mining Pool Hub. Do accepted shares ...
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Do you really need more than 50% mining power in order to attack Bitcoin blockchain?

My question is about concept, so code is not related, however, do you really need 51% of the mining power in order to attack/replace the real bitcoin Blockchain? For example, a blockchain has a ...
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Do pools distribute “jobs” to miners based on “failed” solutions which have already been submitted?

My question is this: How exactly does the stratum protocol distribute "work" to miners? More specifically, since mining can be compared (in many regards) to "brute forcing" a cryptographic hash (i.e. ...
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3answers
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Is this article wrong/scammy? Is it possible that miner earn more by mining several different coins at once through minergate?

https://ambcrypto.com/mining-in-the-bear-market-made-easy-fast-and-cheap-with-minergate/ This one claims they can mine more efficiently by mining several coins at once. I have a hard time believing ...
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Slushpool Miner Hashrate always Lower than Local Hashrate

A Short Story There is an Antminer server farm I provide support for with over 100 BC servers—mainly S9 and T9 models. There are three specific S9 miners that are side by side right next to each ...
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Does submitblock require the wallets private key?

I would like to know if invoking the submitblock RPC is supposed to work if the daemon that handles the RPC does not have the private-keys for to the coinbase output address?
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How to implement difficulty calculation in my code [duplicate]

So let's say we have to produce a hash that start with "0000" I hash a block over and over by changing the nonce inside it. Eventualy I will find a hash that start with "0000". What is difficulty ...
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How can I find real man for bitcoin mining investment? [closed]

can anyone help me for find a real people? Where I can invest for mining, because i lost lot of money before. Someone scamming with me. Thanks
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mining: losers get nothing?

if the winning miner takes the 12BTC+fees, unless you own the biggest mining operation out there, or are not a member of the biggest pool, why bother mining, if there is no prize for second place? ...
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Transaction is not Picked

I am new to block chain technology. I am struggling to understand below concepts: What if my transaction is not picked by the miners and what is the criteria for miners to pick? How can I rely on ...
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How do mining pools connect to the Bitcoin network and miners connect to pool?

I couldn't find the answer anywhere so I start a thread. How do mining pools connect to the Bitcoin network to propagate transactions and blocks? Do they run their own full node? If yes, how many of ...
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Ttransaction validation in the bitcoin blockchain

I am confused. What is exactly a validation of transaction in the bitcoin block chain? Please correct me if I am wrong. I know we need 6 minner to validate our transaction and those 6 minner check ...
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Bitcoin blockchain minner

Q. Is it correct to state that a Bitcoin miner has only two jobs: validating transactions creating a block to add into the blockchain
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Partial Proof of Work in Pools

Technically speaking a full PoW solution is one whose hash value is below a certain threshold value say V. It is not equivalent to saying that the hash value must begin with say X number of zeros (...
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I am web developer, can i use my working pc to mine and work at same time? [duplicate]

Guyz, i am a web developer, i have single pc but i am thinking to add a good GPU in it, my question is that if i add good GPU, will i be able to mine crypto currencies like BTC/ETH and work on my pc ...
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How to send small amount of BTC to thousands of addresses? [closed]

I'd like to create a pool of addresses using Blockchain.com API. But because of the gap limit on unused addresses I want to transfer minimal amount (ideally 1 Satoshi) and without any fees. What's the ...
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Rules of the mining pools for mining software and weight blockchain Litecoin [closed]

What rules must a mining software fulfill in order for a pool to allow mining with the ?, example of a pool please. How heavy is Liteco's chain of blocks at this moment or where can I consult it?
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Blockchain Wallet

I had a gentleman contact me about mining using his miner through his so called company. If the company created the wallet using my email and then I receive an email to verify the wallet has been made ...
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How can i get in touch with a miner [closed]

Please can someone help me get in touch with a miner, i am trying to recover my bch sent to a segwit btc address.
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402 views

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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1answer
57 views

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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83 views

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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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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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
123 views

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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2k views

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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120 views

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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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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1answer
73 views

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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4k views

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
172 views

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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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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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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2answers
243 views

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
674 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
412 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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753 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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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
554 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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889 views

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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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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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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249 views

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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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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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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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?