This page explains exactly how the numbers on Cryptocurrency Miners are produced: where each figure comes from, how often it refreshes, how the profitability estimate is calculated, and what it cannot tell you. If anything here stops matching what the site actually does, the page is wrong and we want to know.
Where the mining data comes from
Every figure on The Miner’s Dashboard is proxied through our own server from public block explorers. We do not use paid data vendors and we do not require an API key, which means the board keeps working without quota failures.
- Network hashrate and mining difficulty come primarily from Blockchair’s public chain statistics, covering Bitcoin, Litecoin, Dogecoin and Bitcoin Cash from a single consistent source.
- Bitcoin fallbacks. If Blockchair is unreachable, Bitcoin figures fall back to mempool.space, then to blockchain.info. Other chains have no fallback: if the source is down, we show the metric as unavailable rather than substituting a different chain’s number.
- Block height comes from the same chain statistics call.
- Coin prices come from our keyless market-data layer, which is backed by Binance market data.
How the block reward is determined
We do not read the block reward from a data feed. We compute it from the live block height and each chain’s published emission schedule, because that is the one method that cannot silently go stale across a halving.
For Bitcoin and Bitcoin Cash the reward is 50 coins halved once every 210,000 blocks. For Litecoin it is 50 coins halved once every 840,000 blocks. Dogecoin is a deliberate exception: its reward has been fixed at 10,000 DOGE per block since 2015 and no further halvings are scheduled, so we treat it as a constant rather than applying a halving formula.
How the halving countdown works
The countdown is derived, not reported. We take the current block height, find the next height divisible by the chain’s halving interval, and multiply the blocks remaining by the chain’s target block time. The clock you see ticking in your browser counts down to that projected moment.
This is an estimate and it moves. Blocks do not arrive on a fixed schedule; they arrive at an average rate that difficulty adjustments push back toward the target. A run of fast blocks pulls the date earlier, a run of slow blocks pushes it later. Treat the block count as precise and the date as approximate.
How the profitability estimate is calculated
The profitability calculator is a straightforward expected-value model. We publish the formula because a profitability figure without its assumptions is not information.
- Your share of the network is your hashrate divided by the current network hashrate.
- Blocks per day is 86,400 seconds divided by the chain’s target block time.
- Coins mined per day is your share, multiplied by blocks per day, multiplied by the block reward, less your stated pool fee.
- Revenue per day is coins per day multiplied by the live coin price.
- Electricity per day is your hardware’s power draw in kilowatts, multiplied by 24 hours, multiplied by your electricity rate.
- Estimated net is revenue minus electricity. Break-even on hardware, when you supply a hardware cost, is that cost divided by the estimated net per day.
What the estimate deliberately does not include
Being explicit about the gaps matters more than adding decimal places:
- Variance and pool luck. The model returns an expectation. Actual payouts fluctuate, and the smaller your share, the more they fluctuate.
- Difficulty drift. We use current difficulty and hold it constant. In practice difficulty has trended upward, which erodes your share over time. A multi-month projection from a fixed difficulty is therefore optimistic by construction.
- Price movement. We hold the current coin price constant. It will not stay constant.
- Transaction fees. We count the block subsidy only, not the fees a block also collects. This makes our revenue figure slightly conservative.
- Real-world operating costs. Downtime, cooling, hosting, hardware degradation, resale value and tax are all excluded.
The break-even electricity rate shown under the calculator answers a more stable question than the profit figure does: at what power price does this hardware stop paying for itself at today’s network state.
How often the data refreshes
- Coin prices and the header ticker: about every 60 seconds.
- Network hashrate and difficulty: about every 10 minutes, which matches how quickly these figures meaningfully move.
- Block height and the halving countdown: on the same 10 minute cycle, with the countdown itself ticking continuously in your browser.
Everything is cached on our server. You are not making requests to third-party APIs by loading our pages.
What happens when a source fails
If a source is unreachable we serve the last known-good value we successfully fetched. If we have never successfully fetched a value, we show that the metric is unavailable and say so in words. We do not print a dash, a zero or a placeholder in a slot where a real number belongs, and we never substitute an invented figure. A missing number is information; a fabricated one is a lie.
How hardware coverage is produced
Our mining hardware coverage is research-based. It is built from manufacturer specifications, public teardowns, operator reports and marketplace pricing, and it is labelled as research-based wherever it appears.
Where we have genuinely run a piece of hardware ourselves, we say so explicitly and label it as hands-on. We will never describe a rig as tested when it was not. We also do not publish aggregate star ratings assembled from nothing, because a rating with no real sample behind it is decoration pretending to be evidence.
Corrections
If a number here is wrong, we want to fix it and say that we fixed it. Material corrections are logged publicly on our corrections page. You can reach us through the contact page.
A necessary disclaimer
Everything on this site, including every figure described on this page, is informational and educational only. It is not financial, investment or tax advice. Crypto and mining are volatile and high-risk, profitability estimates are not guarantees, and you can lose money. Do your own research before spending anything.