Bitcoin Hashrate 5 Exohash, Adds Entire December 2015’s Mining Power

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This piece contrasts mining economics between Bitcoin and traditional resource mining. We look at how the difficulty adjustment can impact profitability in bitcoin network hashrate live mining industry and some potentially perverse incentives. Mining is the random process by which new Bitcoin blocks are found, such that transactions are confirmed. This is a necessarily competitive and energy intensive process.

In order to ensure a smooth and reliable network, every two weeks, based on how many blocks were mined in the period, the mining difficulty adjusts. There is an average target interval between blocks of 10 minutes. The below chart shows the difficulty adjustments red line and the calculated rolling two week hashrate estimate green lineover the last 2 months.

In theory, the difficulty adjustment keeps the system in check, in an equilibrium position, when external inputs change. For example consider the following scenario of a sudden increase in the Bitcoin price:. The same kind of logic can be applied to an increase bitcoin network hashrate live Bitcoin transaction fees or the release of new bitcoin network hashrate live efficient bitcoin network hashrate live hardware.

The theory can also be used in reverse, for a sudden Bitcoin price decrease. Contrary to a popular misconception, this short two week period combined with the theoretical ability of anyone to quickly enter the mining industry, does not mean mining industry profit margins tend to zero every few weeks.

What the difficulty adjustment may mean is that the profit margins of the most marginal miner quickly tend to zero. However, not all bitcoin network hashrate live are the same, for example some miners may benefit from structurally lower costs, such as lower electricity costs, more scale or an effective maintenance regime.

These more efficient miners may be able to produce stable profits throughout these cycles. In addition to this, it is no longer true that there are limited barriers to enter the Bitcoin mining business, bitcoin network hashrate live a particular cost level.

For example perhaps a large capital investment is required, there may be large time lags before the mining farm is active, cheap electricity may be difficult to source and the latest specialist mining chips may be hard to get hold of.

Therefore the assumption that there are limited entry barriers may no longer hold anyway. The below chart illustrates total world gold mining production, by mining company. The x-axis displays the proportion of global gold production by company, while the y-axis is a measure of the cost to produce one troy ounce of gold.

The straight red line represents the spot gold price. Gold mining industry cost curve. As the chart illustrates, miners on the left hand side are able to generate profits, despite moderate reductions in the spot gold price. In contrast miners on the far right hand side, can be classified as the most marginal miners.

The profit margins of these most marginal miners does tend to zero over the cycle. If the gold bitcoin network hashrate live increases, over the long term, more gold miners may join the industry on the right hand side of the chart, increasing the supply of gold, eventually causing downward pressure on the price of gold.

This type of equilibrium cannot occur in Bitcoin since the supply is fixed, therefore the difficulty adjustment is an alternative equilibrium mechanism.

The grey bar on the far right hand side of the chart shows a miner making a loss. However, since the AISC includes depreciation, it may be rational for this loss making miner to remain open, to make a contribution to the capital investment initially made, although the original investment decision turned out to be a bad one. The same logic could be applied to Bitcoin mining, the fixed costs are items such as acquiring the mining equipment and building a mining farm, while the variable costs are items such as electricity bills and maintenance.

One could call bitcoin network hashrate live a free cash flow FCF positive miner. This could help ensure the mining hashrate and Bitcoin bitcoin network hashrate live conditions are more stable than bitcoin network hashrate live otherwise would be.

When the mining difficulty increases, the cost for the miners bitcoin network hashrate live produce one Bitcoin should shift upwards. Incidentally this is a not necessarily a parallel upward shift in costs. Each miner may have a different breakdown between fixed and variable costs. The fixed costs should remain unaffected by a difficulty adjustment, such that miners with a higher proportion of fixed costs, perhaps due to very low electricity charges, may comparatively benefit from an upwards difficulty adjustment, compared to its peers.

This dynamic is different from traditional resource mining e. If the gold spot price changes, this neither impacts the variable or fixed costs, of producing one troy ounce of gold. Therefore in gold mining, the actions of other miners cannot directly impact the costs in any one mine, whilst in Bitcoin difficulty adjustments, driven by the actions of other miners, can directly impact the cost per unit production.

We have explained how some Bitcoin miners can comparatively benefit from a lower Bitcoin price, however bitcoin network hashrate live may also be possible for some miners to get an absolute benefit from a falling Bitcoin price, in the short term.

If the spot price of Bitcoin falls, initially all miners take a parallel revenue hit per Bitcoin produced, just like in traditional mining. However, should miners on the right hand side of the cost bitcoin network hashrate live leave, depending on the shape of the costs curve, some miners could actually see the absolute level of their profits increase. In some ways this could make the Bitcoin mining industry earnings more resilient to price crashes, but in other ways it could produce perverse incentives.

The difficulty could then adjust downwards bitcoin network hashrate live miners on the left hand side of the curve could, in theory, increase the absolute level of their profits.

A similar analysis could be conducted, but instead of miners leaving, it could apply to the absence of miners entering the market. Contrived mining industry cost curve variable costs. Therefore, perhaps some miners may benefit from falling Bitcoin prices, in some time periods. Who knows, we may already be seeing this phenomenon, to some extent, with larger lower cost miners wanting the price to remain low such that new miners do not enter the market.

Although this is probably somewhat unlikely. Skip to content Abstract: A two week period is split into sections of 10 minutes. If more than blocks were mined in a two week period, mining becomes more difficult, such that if the hashrate remains constant, blocks are expected to be found every 10 minutes in the next two week period. If fewer than blocks were mined in a two week period, mining becomes less difficult, such that if the hashrate remains constant, blocks are expected to be found every 10 minutes in the next two week period.

The maximum adjustment in any one period is a factor of 4 i. Mining Equilibrium and the Misconception This Means Miners Cannot Make Profits In theory, the bitcoin network hashrate live adjustment keeps the system in check, in an equilibrium position, when external inputs change. For example consider the following scenario of a sudden increase in the Bitcoin price: The Bitcoin price increases Mining bitcoin network hashrate live increases, since miners are rewarded in Bitcoin More miners join the network to take advantage of higher profit margins and there are limited mining entry barriers The network hashrate increases and the average block interval falls below 10 minutes After a few weeks, the mining difficulty increases and therefore mining profitability decreases The average block interval increases back up to 10 minutes The same kind of logic can be applied to an increase in Bitcoin transaction fees or the release of new more efficient mining hardware.

The Gold Mining Industry as an Analogy The below chart illustrates total world gold mining production, by mining company. How the Mining Adjustment Impacts Industry Economics When the mining difficulty bitcoin network hashrate live, the bitcoin network hashrate live for the miners bitcoin network hashrate live produce one Bitcoin should shift upwards. In theory, Some Bitcoin Miners Could Even Profit in Absolute Terms from Falling Bitcoin Prices We have explained how some Bitcoin miners can comparatively benefit from a lower Bitcoin price, however it may also be possible for some miners to get an absolute benefit from a falling Bitcoin price, in the short term.

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There are lots of videos and articles on what Bitcoin difficulty is, and lots of charts on how it has changed over the past couple of years.

But this isn't really helpful if you're thinking about investing in cloud mining, or maybe even buying your own mining rig. We focus on key factors that may affect Bitcoin's difficulty in this guide. If you're looking for how profitable ASIC miners are in , see this guide. So let's start by looking at how Bitcoin difficulty has changed every 4 months for the past 3 years:.

Sep - As of 19th December , many difficulty charts, including the one above, seem to be displaying outdated data. We've posted a video explaining the cause of this here. Looking at the Blockchain chart above for the past 2 years, it definitely looks exponential; e.

But the figures for the past 3 years don't do that, they vary significantly. In it took around 11 months for the difficulty to double, in early around 6 months, in late around 8 months and then in between months. Rather than doubling at a consistent interval, it seems to vary based on factors like available hardware and public interest. What we're suggesting is that the rate Bitcoin difficulty is increasing is not fixed, and can be anticipated. Right now, in December , Bitcoin is very popular, with thousands of new investors and miners every day - so significant difficulty increases are to be expected.

Many new people are interested in bitcoin mining, allowing hardware manufacturers to sell miners in larger quantities, causing more total hashpower to be available - driving Bitcoin difficulty up.

The key relationship here is that the amount of new hardware becoming available is strongly linked to the demand for it. A risk is that if the people making these miners produce too many, the difficulty will rise so fast that Bitcoin mining profitability goes down massively. This occurred for Dash when the Antminer D3 came out. There are also scenarios that can cause Bitcoin's difficulty to decrease.

August is a good example of this, where a lot of miners moved their hashpower to mine Bitcoin Cash as it was more profitable at the time. This decreased hashpower mining Bitcoin, causing Bitcoin's difficulty to decrease for 2 weeks.

If you stay up-to-date with these types of scenarios and mine the more profitable coins Bitcoin Cash in this scenario , you can get extra coins for 2 weeks and sell them immediately for a great return on investment or just HODL them! Another argument suggesting Bitcoin mining will remain profitable long-term is to look at it from the perspective of large mining operations.

If you were a miner running a large setup, and Bitcoin mining was to no longer be profitable, then you'd likely start mining something else that was. If there were no profitable coins for a long period of time, you'd likely have very high operating costs and be forced to shut down your operation eventually. For a smaller miner running just a few Antminers or some cloud mining, this would be less of an issue.

So in theory as long as Bitcoin stays popular and its price continues to increase, if you can get cheap electricity Bitcoin mining should always stay profitable. This last argument in particular is very speculative, so be aware that for a worst-case scenario if Bitcoin's price was to fall for a long-period of time, even if you had cheap electricity, there's a risk that mining it would no longer be profitable.

In June , the reward for Bitcoin mining will half. This could cause big issues in the long-term as it essentially makes it half as profitable overnight. So if miners are only making a small profit prior to this, they'll then be running at a loss just after it. At this point open-ended contracts on sites like Genesis Mining will likely no longer be profitable although they might not even last that long.

This site cannot substitute for professional investment or financial advice, or independent factual verification. This guide is provided for general informational purposes only. The group of individuals writing these guides are cryptocurrency enthusiasts and investors, not financial advisors.

Trading or mining any form of cryptocurrency is very high risk, so never invest money you can't afford to lose - you should be prepared to sustain a total loss of all invested money. This website is monetised through affiliate links. Where used, we will disclose this and make no attempt to hide it. We don't endorse any affiliate services we use - and will not be liable for any damage, expense or other loss you may suffer from using any of these.

Don't rush into anything, do your own research. As we write new content, we will update this disclaimer to encompass it.

We first discovered Bitcoin in late , and wanted to get everyone around us involved. But no one seemed to know what it was! We made this website to try and fix this, to get everyone up-to-speed!

Click here for more information on these. All information on this website is for general informational purposes only, it is not intended to provide legal or financial advice. Expected Bitcoin Difficulty in Sep 19th, Updated Jan 26th, Mining There are lots of videos and articles on what Bitcoin difficulty is, and lots of charts on how it has changed over the past couple of years.

This guide has our thoughts on what will affect Bitcoin difficulty over So let's start by looking at how Bitcoin difficulty has changed every 4 months for the past 3 years: Rate of Bitcoin difficulty increase Looking at the Blockchain chart above for the past 2 years, it definitely looks exponential; e. May 5th, What is the Antminer Z9 Mini? Written by the Anything Crypto team We first discovered Bitcoin in late , and wanted to get everyone around us involved.

Never invest money you can't afford to lose.