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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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110 votes
4 answers
82k views

How does merged mining work?

How does the implementation of merged mining affect the global hash rate of alt chains? Does one solution fit all? Does one solution fit some? Does the rate of "solutions that will fit" decrease ...
MaxSan's user avatar
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59 votes
4 answers
1.0m views

What is the difference between kH/s, MH/s, and GH/s?

I started mining on a friend's computer and it shows 300 kH/s. But when I research other peoples' hash rates I usually see MH/s. Are these speeds the same as kilobytes and megabytes? Also, when I say ...
Exploit's user avatar
  • 877
30 votes
6 answers
146k views

Solo mining just for luck, realistic?

Just turned my attention to mining and the concepts are quite new to me. First of let me be clear: I realize that my hardware setup is far from ideal for mining. This is also the reason why I do not ...
Isac's user avatar
  • 403
21 votes
3 answers
66k views

What does the mining difficulty number really mean?

I'm new to bitcoin; please bear with me. I'm looking into mining, how it works, and how to get started. I see a "mining difficulty" from many sources and list a 3 billion something number without ...
user avatar
18 votes
6 answers
35k views

Why can't they use super computers to mine all the bitcoins?

I have very limited knowledge of bitcoin, but, I hope you don't mind my asking this question: As I understand it, "mining bitcoin" requires "significant" computational prowess. A lot of dedicated ...
thatmaheshrs's user avatar
16 votes
3 answers
4k views

What can be done about the no-transaction block relayer (currently 71.123.170.150)?

An unknown major solo miner (currently IP 71.123.170.150), most likely a botnet, is relaying blocks with zero transactions. Two weeks ago this miner constituted ~15% of the network, now it constitutes ...
BinaryMage's user avatar
  • 1,346
16 votes
2 answers
4k views

What happens if hash rate decreases rapidly?

Since difficulty is only adjusted every 2016 blocks, what would happen if hash rate was to decrease rapidly? Wouldn't this cause blocks to be created less frequently and also making the time until ...
D.H.'s user avatar
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15 votes
1 answer
660 views

How will bitcoin stay decentralized when mining becomes extremely expensive?

My understanding of bitcoin is that the miners are the ones keeping bitcoin decentralized. What happens when only the richest of people can afford mining?
rewol's user avatar
  • 169
15 votes
6 answers
68k views

Mining pool hashrate effect on a miner's income

Newbie miners have many misconceptions about how the hashrate of the pool they mine in will affect their mining income. If a big miner joins the pool there are some unhappy miners who think that now ...
Dr.Haribo's user avatar
  • 8,469
14 votes
2 answers
2k views

Why doesn't the same miner always win?

If the miner with the strongest ability to solve the block wins, why doesn't the same miner win every time? Wouldn't that miner still have the strongest ability to perform the proof of work on the ...
Jonathan Chad Faling's user avatar
14 votes
1 answer
2k views

What is the approximate hashrate of a human?

Which and how much mathematical operations are required for the blockheader-to-blockhash operation and how fast would a human be able to calculate a single hash? EDIT: For simplicity, I think it's a ...
Steven Roose's user avatar
  • 11.8k
14 votes
4 answers
73k views

What are the odds of discovering a block as a solo miner?

I understand that during mining, one does not discover individual coins, but rather blocks of coins, and I heard that one block equals many coins (but how many?). I am wondering though, as a solo ...
Friendly's user avatar
  • 313
14 votes
4 answers
9k views

What happens once the mining reward gets cut in half?

Sometime around the end of 2012 the mining reward is expected to be cut in half from 50BTC/block to 25BTC/block. What effect will this have? Doesn't this mean that it will be less economic to run a ...
Yuval Adam's user avatar
11 votes
1 answer
5k views

What mining performance can we roughly expect from the Intel SHA extensions of the upcoming Skylake processor architecture?

Intel is scheduled to release their new x86 SkyLake microarchitecture in Q3 2015. Among other interesting features, it will introduce SHA extensions that will allow hardware acceleration of the Secure ...
Will's user avatar
  • 337
10 votes
2 answers
5k views

How can I measure the total hashing power of the Bitcoin network?

Is there a way to measure what is the total hashing power of the Bitcoin network at a given time? For pooled mining it isn't a problem - one can rely on statistics provided by the pool (assuming one ...
ThePiachu's user avatar
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10 votes
4 answers
873 views

What is the ecological effect of increased work for the Bitcoin chain?

As more users use Bitcoin and "forced work" difficulty increases what effect does this have ecologically? It is a silly question I know. I'm just comparing let's say value or effect of using ...
cyphunk's user avatar
  • 201
10 votes
1 answer
2k views

Why does merely having Windows Media Player open double my GPU hashrate?

I'm using poclbm to mine under Windows... processor is an AMD A6-3400M with integrated Radeon HD 6250G GPU. When Windows Media Player is closed, I get a rate of 16 megahashes/second, but when it is ...
okw's user avatar
  • 212
9 votes
1 answer
96k views

How to quickly check your mining speed?

Is there some website that provides some webminer or other way for a person to check their mining speed without actually joining any pool or doing solo mining? Alternatively, are there some miners ...
ThePiachu's user avatar
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8 votes
2 answers
2k views

How fast is the Bitcoin (mining) network?

How fast is the Bitcoin mining network compared to other distributed computing networks? ;)
kermit's user avatar
  • 2,019
8 votes
2 answers
14k views

Calculating average number of hashes tried before hitting a valid block

I'm toying with the idea of starting to mine, and was wondering how to calculate how many hashes on average must be tried before one will "hit" a valid block? I'm talking about a single user (not a ...
Baard Kopperud's user avatar
8 votes
1 answer
81 views

Merchant tool that will dynamically adjust the # of required confirmations based on network hashrate data

Satoshi built Bitcoin to be a decentralized network. Some of the original recommendations (such as waiting for 6 confirmations) relied on statistics that related to level of decentralization. https://...
studycrypto's user avatar
7 votes
2 answers
13k views

What is the algorithm to create a Bitcoin mining calculator?

I want to know how I can calculate the profit of bitcoin mining in bitcoins. I am interested in the formula that is used by calculators. For example lets say I have 700mh/s hashrate, current ...
user1761818's user avatar
7 votes
1 answer
1k views

When did the ASIC mining era begin?

I am trying to figure out when the ASIC mining era began. A Bitcoin magazine article from January 23rd 2013 announces the imminent arrival of the first batch of Avalon miners in early February. Is ...
Murch's user avatar
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6 votes
3 answers
5k views

What is "buying hash rate" and how could it be profitable?

I'm sorry if this question may sounds like a newbie question (well, it is). Introduction I'm 23 years old and I would like to generate money with my money to eventually invest in stock market after ...
Baloo's user avatar
  • 163
6 votes
1 answer
4k views

Can quantum computing improve Bitcoin mining?

Would a D-Wave 2 with 512 qbits be faster than the fastest ASIC when mining bitcoins?
Jader Dias's user avatar
6 votes
2 answers
4k views

How will the Bitcoin network look after BFL ASIC hardware shipments?

There have been over 7000 pre-orders of BFL SC series mining machines, with the cheapest one supposedly running at 3.5 GH/s and the most expensive being 1000GH/s thats a lot of hashes about to be ...
Ian's user avatar
  • 89
6 votes
1 answer
796 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?
ThePiachu's user avatar
  • 43.1k
6 votes
1 answer
158k views

how do I figure out the hash rate of my computer? [duplicate]

My computer has AMD A4-5300 APU W/ Radeon(tm)HD subscore 6.2 Graphics AMD Radeon HD 7480D 4.7 If any one can help , thank you!
Jesse's user avatar
  • 61
5 votes
3 answers
124k views

How many hashes create one Bitcoin?

Irrespective of the length of time required to calculate one hash, how many hash operations are required to produce one Bitcoin?
powtac's user avatar
  • 385
5 votes
6 answers
32k views

Do PCI USB risers lower the hashing rate?

I have a PCI USB riser like this one: I have 2 identical video cards with one plugged directly into the motherboard and one plugged in via the PCI riser. I am seeing a hash rate of 290 KH/s on the ...
Scott's user avatar
  • 822
5 votes
2 answers
1k views

How will a massive increase in hashpower affect orphan rates?

Difficulty always lags behind a little. It is also limited in how large adjustments it makes each time. What if the (global) hashrate doubles overnight? What if it quadruples? How much can we expect ...
Dr.Haribo's user avatar
  • 8,469
5 votes
2 answers
722 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?
ThePiachu's user avatar
  • 43.1k
5 votes
1 answer
35k views

What is a megahash and how is it used to estimate the rate at which bitcoins are mined?

What part of the bitcoin network requires hashes and why? What is the relation between money and the megahashes a card can do?
Celeritas's user avatar
  • 879
5 votes
1 answer
2k views

What is the hash-rate of the Bitcoin network that results in the maximum difficulty?

According to https://en.bitcoin.it/wiki/Target the target is a 256-bit number. As the total hash-rate of the Bitcoin network rises, this number decreases to increase the difficulty. How much hash-rate ...
mASOUD's user avatar
  • 178
5 votes
1 answer
4k 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 ...
Damian Siniakowicz's user avatar
5 votes
2 answers
188 views

Will Bitcoin scaling affect the amount of hashing power required to keep the network secure?

In Mastering Bitcoin Andreas Antonopulous asserts that "Bitcoin can scale up, achieve broader adoption, and remain secure without any increase in hashing power from today’s level." Is this really ...
iivri  andre's user avatar
5 votes
3 answers
402 views

Bitcoin value vs. Supercomputing

What protects the stability of Bitcoin's value if supercomputers or some other technological breakthrough allows them to be mined at rates we have not anticipated?
Erich's user avatar
  • 51
5 votes
1 answer
8k views

CPU vs GPU Mining (FTC) - CPU wins? How?

I've read many times over a long period of time that GPU will win out against CPU every time if you use hardware of a similar tier/age. However, i've been toying around today with some FTC mining and ...
Gary Morris's user avatar
5 votes
1 answer
281 views

Unknown factor in bitcoin pool breakdown

Some time ago the breakdown was dangerously close to heaving too heavily towards Deepbit with only a small part unknown/single person miners. Now there's a 34% unknown factor. What caused this? Are ...
Lodewijk's user avatar
  • 1,575
5 votes
1 answer
170 views

Incentive for mining by regular users

Most of the time that a regular user gets introduced to the concept of mining, they're immediately non-incentivized by the community and also by the high-cost of hardware compared to the actual reward....
Luca Matteis's user avatar
  • 5,232
5 votes
3 answers
73k 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 ...
Andy's user avatar
  • 151
4 votes
6 answers
15k views

How do I make a profit buying cloud-hashing contracts?

I have tried one of the hashpower selling/buying website (nicehash) to buy hashpower. I have connected my order to a pool where I had one worker. However, despite all the advertisements, I could not ...
Attila's user avatar
  • 43
4 votes
5 answers
45k views

I've tried everything from mining bitcoin to litecoin to other altcoins....why do I have no luck?

I am a beginner in the blossoming culture of crypto-currency, and unfortunately, it's beginning to feel as if 2015 is too late of a year for a laptop-user such as I to be able to start mining. I'm ...
Drew Erikson's user avatar
4 votes
3 answers
554 views

Bitcoin inflation in 9/12 doesn't seem to have been corrected. Why not and will it be fixed?

I'm looking at the Total Bitcoins in Circulation graph and don't understand why there is a spike of coins being generated in Sept '12. What caused this to happen? Also, since there is a fixed number ...
makerofthings7's user avatar
4 votes
2 answers
10k views

What hashing speed does my hardware have?

I'm checking this page to know what hashing speed my hardware has. But there's no explanation about the acronyms. For my Core 2 Quad Q9650, what's the expected hashing speed?
The Student's user avatar
4 votes
1 answer
369 views

Does variability of block solution time change as difficulty increases?

We know that the expected average time to solve a block from any given point in time is 10 minutes when the network hash rate matches the current difficulty. However, as difficulty increases are we ...
Highly Irregular's user avatar
4 votes
1 answer
3k views

How is the probability of winning a block calculated from the difficulty?

I have problem finding this. The Bitcoin wiki mentions the probability here, but only with a link to the current value on BlockExplorer. The wiki page on difficulty doesn't mention the formula for ...
Steven Roose's user avatar
  • 11.8k
4 votes
3 answers
785 views

Are big miners a threat for Bitcoin?

According to this graph, the biggest miner is so big that combined with two of the three runners-up they would have more than 50% of the hashing power. Is that to be considered a threat to the ...
o0'.'s user avatar
  • 5,240
4 votes
2 answers
1k views

How to tell who mined a bitcoin?

If the Bitcoin algorithm was broken and someone started spitting out blocks one after the other through their otherworldly space computer, could it be detected that the same miner was busting all the ...
Motomotes's user avatar
  • 143
4 votes
2 answers
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 ...
Stefan's user avatar
  • 41

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