Questions tagged [hashpower]

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

95
votes
4answers
70k 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 ...
51
votes
4answers
763k 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 ...
26
votes
6answers
88k 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 ...
19
votes
3answers
63k 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 ...
15
votes
3answers
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 ...
15
votes
6answers
26k 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 ...
15
votes
2answers
2k 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 ...
14
votes
1answer
635 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?
13
votes
1answer
1k 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 ...
13
votes
4answers
40k 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 ...
13
votes
4answers
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 ...
13
votes
5answers
45k 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 ...
11
votes
1answer
4k 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 ...
10
votes
2answers
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 ...
10
votes
4answers
813 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 ...
10
votes
1answer
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 ...
8
votes
1answer
76k 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 ...
8
votes
1answer
65 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://...
7
votes
1answer
11k 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 ...
7
votes
2answers
2k views

How fast is the Bitcoin (mining) network?

How fast is the Bitcoin mining network compared to other distributed computing networks? ;)
7
votes
1answer
948 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 ...
6
votes
1answer
987 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 ...
6
votes
1answer
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?
6
votes
2answers
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 ...
6
votes
1answer
718 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?
6
votes
1answer
149k 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!
5
votes
3answers
115k 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?
5
votes
2answers
850 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 ...
5
votes
3answers
540 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 ...
5
votes
2answers
678 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
votes
2answers
162 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 ...
5
votes
3answers
280 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?
5
votes
1answer
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 ...
5
votes
1answer
272 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 ...
5
votes
1answer
156 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....
5
votes
3answers
56k 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
5answers
24k 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 ...
4
votes
6answers
12k 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 ...
4
votes
2answers
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?
4
votes
5answers
44k 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 ...
4
votes
1answer
325 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 ...
4
votes
1answer
2k 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 ...
4
votes
3answers
683 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 ...
4
votes
2answers
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 ...
4
votes
1answer
27k 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?
4
votes
1answer
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 ...
4
votes
2answers
3k views

Is there a chart that shows Mhps mint speed over time?

My BitMinter client says that my approximate mint speed is 0.0078/per day on a MacBook Pro Retna. I assume that this value decreases as the speed of the network increases, and therefore my ...
4
votes
1answer
2k views

Sudden Drop in Hash Rate GeForce 650 GPU Card

I'm running on a 15" Retina MBP and have just been playing around with mining on it a little bit. I realize GPU mining is almost dead at the moment, but bear with me. Overnight last night I was ...
4
votes
1answer
75 views

Are there any post BTC halving hashrate prediction markets?

Are there any futures markets that allow predictions of post BTC halving network hashrate?
3
votes
4answers
838 views

What is “If ghash.io hits 51% people would just leave them?” referring to?

I am watching video that explains original Bitcoin whitepaper by Satoshi Nakomoto. I totally understand that as long as 51% of the CPU power is legitimate then using bitcoins is safe. But then the ...