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Questions tagged [hashpower]

The hash rate is the measuring unit of the processing power used to secure the Bitcoin network.

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Estimating difficulty of “Memory-Hard Proof-of-Work” based on “size of memory”?

In Bitcoin proof-of-work, the difficulty of Proof-of-Work is estimated and calculated based on total hashing power of the participants. If total hashing power of the participants is higher, then PoW ...
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41 views

What is a relationship with total hash rate(hash power) and average block generation time?

This chart - hash rate means total hash rate of All minor? I think the most significant factor for difficulty and block generation time is the hash rate of the biggest mining pool not total hash rate ...
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19 out of 24 words of BIP39 passphrase (brute-force last 5?) [duplicate]

I have managed to lose 5 words of my 24 word Ledger Nano S recovery phrase. I have words 1-19 but I am missing words 20-24. I have significant holdings on the wallet so would very much like to recover ...
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259 views

Are there still miners or mining pool which refuse to implement SegWit?

It was well known that initially while SegWit got more than 50% of hashrate after activation that a part of the mining pools refused to implement it. But are there still blocks being mined by miners ...
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41 views

How is pool hashrate share name known?

Since it’s not possible to know mining pools nodes addresses, how do we know the that a specific node owing 15% of share belongs to btc.com for example ?
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19 views

HashRate After 24 hours reduce

I Have two whatsminner m3x , when I start mining hashRate be 12 , after 24 hours hash rate be between 2 and 3 , and I don't know why?? what I must to do? , my device connect to Slushpool
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34 views

Can the Bitcoin halving be delayed?

Currently the next halving date is May 2020 (provisional) according to enter link description here. I understand that every 210k blocks, the block reward is halved and this works out, roughly, to ...
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Hash rate of the average PC/Top end PC [duplicate]

Hi I was wondering if anybody had any idea about what the hash rates are like with PCs released fairly recently. I'm sort of looking for figures to use for an average user if they wanted to use their ...
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24 views

What stops miners from no longer submitting failed hashes to the network, to reduce the difficulty and block time?

As I understand it, the difficulty adjusts based on the hashrate to keep the block times at 10 minute intervals. But if Alice and Bob are the only ones mining on the network, what's to stop Alice from ...
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35 views

Hash rate : Algebraic Equation

I recently made a post on stack, Calculate hash rate in IOS, in hopes of deciphering how the hash rate is calculated when benchmarking performance. The reason I wanted to do this is to compare against ...
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22 views

minimum hash rate of a pool to earn a reward

how much minimum hash rate of a new bitcoin pool should be to be able to compete with other pools to earn a reward? how can I calculate that value? any help appreciation
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34 views

How has the hash rate for bitcoin continued to increase despite price drops and miners dropping out?

Despite price dropping in 2018, the hash rate for bitcoin tripled from around 15 EH/s to 45 EH/s. Why is this the case? I am aware that the network difficulty adjusts meaning that if miners drop off, ...
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39 views

What exactly makes altering of data in non-bitcoin blocks hard?

If leading zeros is only bitcoin requirement, then what makes altering of data in blocks hard? Like now its easy to modify a block and generate new hash for every subsequent blocks since generating ...
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236 views

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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Why does a malicious miner need more hashing power than the rest of the network combined? [duplicate]

I don’t quite understand why a malicious miner needs more hashing power than the rest of the network combined. When miners are solving a hash puzzle, aren’t they solving the puzzle individually? If ...
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49 views

What is resource of mining rewards

How the coins must be paid miners for mining process is provided? One of resources may be transactions fee. Is there any other resources for proving reward of miners?
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ASIC Speed measurement

Mining hardware manufacturers use "Hash rate" to define how fast the mining is with their ASICs, but do they mean 1 sha256 cycle speed or Bitcoin hash speed sha256(sha256(header)); ?
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16k views

how to calculate hash rate of your rig?

First going the easy way, I would use any online calculator but most of these mining calculators require the hash rate of my device. I am unable to find a suitable answer or a guide to easily compute ...
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What stops people attacking my new coin?

Say I just made a new altcoin. I mined it for a few days at some reasanoble difficulty - 2000 for example. I got to the 10 000th block and I am happy with my premine and network. Then, an attacker ...
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168 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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54 views

How much time to re-mine blockchain at current hashpower?

It has taken 9 and half years to mine all blocks averaging 1 per 10 minutes. How long would it take to re-mine all current blocks at current hashing power?
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142 views

Is possible to destroy the Bitcoin for just $500K? (51% attack)

Everytime I read about the 51% attack the answer was something like: is really expensive to get 51% of power on BTC and nobody will invest so much so to destroy the bitcoin. But I found this site ...
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672 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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555 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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67 views

Would mining future bitcoins break the bitcoin?

assuming an bitcoin miner with very much hashrate like bitmain would decide to mine "future" bitcoin blocks and provide them within very short time to the network, would this break the bitcoin? As i ...
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888 views

Bitcoin mining difficulty and hash rate

On blockchain.info there is the charts that shows the mining difficulty over time and the hash rate over time. See: Hash: https://blockchain.info/nl/charts/hash-rate Mining difficulty: https://www....
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Zero Hashes Per Second with Diablo-D3 Miner

I'm trying to setup Diablo-D3 Miner on my computer (I'm aware that there are other solutions available, but I need something written in Java for a personal project) and I see in console I'm getting ...
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1answer
404 views

How do I calculate the expected shares per minute for my pool

I am currently mining Zencash in a pool, and I'd like to be able to calculate the expected shares per minute for a given pool's hashrate. Let's say the pool's hashrate is 50 KSol/s. I think that the ...
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1answer
43 views

Bitcoin mining question about hashrate helping you exponentially

I am a total newb in the crypto mining world and was researching the profitability of bitcoin mining when I came across bitclub which offers almost 4x more profit than mining by yourself. Their ...
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1answer
175 views

Probability of block rewards

Assume that there are only three mining pools, all with the same hashing power, mining for bitcoins in the bitcoin network. Which mining pool is most likely to get the block reward? Do you all think ...
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1answer
209 views

GPU Mining Speed

I am a bit new to the whole mining thing and just have a economical issue when it comes to selecting GPUs. Sorry if the title is in appropriate. Let's just say in mining Ethereum, a 1070 ti (costs $...
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47 views

If BTC.com has the highest hash rate, then why is it not the only pool prodcuing the blocks? [duplicate]

with respect to : https://blockchain.info/pools BTC.com pool seems to have the highest hashpower of 5648.00 PH/s[as per https://btc.com/] .Then how is it that other pools are also able find the ...
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157 views

How is Ethash a 'memory hard' algorithm if it utilizes peak GPU memory bandwidth?

According to the Ethash algorithm described here, the computation for each nonce requires a loop of 64 iterations, where each iteration reads a chunk of 128 bytes from a pseudo-random location in ...
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465 views

Why is Ethereum total network hashrate still increasing if there are no GPUS to buy?

The total Ethereum network hashrate is close to doubling relative to its December level. Mining difficulty is also increasing proportionally of course as the total reward per block stays the same. ...
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retail hardware SHA256d hash rates [duplicate]

Obviously it hasn't been profitable to mine bitcoin on retail hardware for years at this point. Nevertheless, I'm curious. Does anybody have any benchmarks on what the hash rates for retail ...
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2answers
218 views

How miners with less power win?

As I understand, when multiple persons mine blocks, only the first one who solves block is the winner and gets rewarded. Basically the winner is the one (solo miner or group in pool) who has the ...
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1answer
303 views

Best ASIC miner for someone on a budget

Ive looked all over for decent ASIC miners under 150$. Ive gotten very mixed reviews on the ones Ive found and are very new to mining in general. I would like a simple ASIC usb capable of at least BTC ...
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296 views

Mining Zcash using cluster of GPU's

I have a basic knowledge about an idea of cryptocurriencies. Recently I have read articles about Zcash. Rumours has it that it's the most profitable cryptocurrency on the scene. Me and my co-...
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95 views

How do you mathematically add and subtract hash power?

My question was how do you mathematically add and subtract hash power. I recently purchased four Antminer D3s.They all run at the average rate of 19-20 MH/s but when I go to my stats in the pool that ...
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1answer
792 views

Why the nonce is difficult to find in Bitcoin?

I read many articles explain the Bitcoin POW, but every article seems copy form each other. they just indicate find a nonce start from 1, but I still confused why find a nonce number is so difficult? ...
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1answer
170 views

Why am I getting only about 3k to 300k hashes per second?

I have written a python script to mine bitcoin. I am however getting only 3k to 300k hashes per second Here is the code: import time import hashlib import random import string size_of_rand_input =...
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1answer
332 views

How many CPU's work on blockchain today?

How many CPU's are working on blockchain now? How much energy is estimated to be consumed? I read an article on coindesk saying it may surpass all other energy consumption by 2020..... seriously?
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1answer
155 views

Who witnesses a Segregated Witness transaction and what incentive do they have to witness the extended block containing signatures?

This video claims Segregated Witness is insecure because no one has an incentive to process (witness) the extended signature block. https://www.youtube.com/watch?v=VoFb3mcxluY It claims that as the ...
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2answers
118 views

What are the implications of a huge amount of unused hash power?

A not unthinkable scenario is that the Bitcoin price decreases to, say, 10-20% of today's value. This would make mining less profitable, and the difficulty should adapt accordingly. This should lead ...
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1answer
605 views

BTC Hash-Rate API

I'd like to get hash-rate of BTC from OKcoin' API(GET /api/v1/charts/:type) here is OKCoin's API web site. How can I get information from here is OKCoin's API web site. python gets = requests.get("...
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994 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 ...
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770 views

Geographical distribution of mining power/work

Is there any information on how the mining power is distributed geographically? I.e. where the computers are located that do the work. This is important as one measure of centralization of the system,...
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2answers
359 views

Total number of hashes performed for bitcoin purposes?

I would like to estimate the total number of hashes (double SHA-256) that have been performed for bitcoin purposes. As an estimate, I downloaded mining stats, massaged the numbers (assuming the rate ...
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1answer
5k views

Current hash rate required for one block

Now, the height of the blockchain is 485531. How much hash power is ideally required to mine block number 500000. And how much hash rate does a node require to publish a block successfully each hour?