Mining Academy
Who Are Miners and Why Cryptocurrencies Need Them
Miners are the network participants who contribute computing power to confirm transactions and create new blocks on a blockchain, and are paid in coins for doing so. Proof-of-work cryptocurrencies such as Bitcoin, Litecoin and Dogecoin need them for two reasons: without miners nobody verifies and records payments, and their combined spending on electricity and hardware makes attacking the network extremely expensive. A miner can be a private individual with one device or a company with thousands of ASICs in a data center.
What miners actually do
A miner has three jobs, and all three happen at the same time.
- Confirm transactions. A miner picks unconfirmed payments, verifies them (signature, available funds, no double spending) and includes them in a block.
- Create blocks. By solving a computational puzzle, the miner proves that real resources were spent and earns the right to add a block to the chain. The technical details are in How Bitcoin mining works.
- Secure the network. The greater the combined power of honest miners, the harder it is for an attacker to rewrite history: they would need to control power comparable to half the network or more. That is costly, and the stronger the network, the costlier it gets.
In return a miner receives two kinds of income: the block subsidy (new coins issued by the protocol) and the fees paid by transaction senders. A general introduction to the topic is in "What is mining".
Why the network needs competing miners
In banking, reliability is the job of a regulator and the bank itself. In cryptocurrencies, economic incentives play that role. Miners compete, and anyone who tries to cheat, for example by putting an invalid transaction in a block, risks losing everything: other nodes reject such a block and the electricity spent on it is wasted. It is simpler and more profitable to follow the rules. The reward in coins and the fees are the carrot that makes participants protect the network without trusting one another.
This also explains why decentralization matters. If power is concentrated in one or two large players, the risk of collusion or coercion rises. That is why the community watches how hashrate is distributed between pools and discusses concentration risks.
Types of miners
Home miners
One to a few ASICs in an apartment, garage or country house. Their main challenges are noise (industrial devices are loud), heat, wiring load and the electricity tariff. The advantage is full control and flexibility: you can stop or move a device at any time. Home miners especially benefit from comparing placement options and choosing between home and hosting.
Small and medium farms
From a few dozen to hundreds of devices in a rented room, a hangar or a hosting facility. Engineering tasks appear here: ventilation, power supply, monitoring, per-subaccount accounting and a contract with the electricity supplier. Farms usually target cheap electricity and try to automate management.
Industrial miners
Companies with megawatts of capacity and thousands of devices that build their own data centers, sign direct contracts with generators or use surplus energy. They operate at scale: they win on power prices and hardware purchasing, but also carry large capital risks. In Russia such participants must be registered in the Federal Tax Service's miner registry.
Hosting clients
People who buy ASICs but place them in someone else's data center for a fee, receiving space, power, cooling and maintenance. They care about uptime, the contract and transparent remote monitoring. Options are available in the hosting section.
The makeup of miners has changed along with technology. In Bitcoin's early years blocks were mined on home CPUs, then graphics cards arrived, and then specialized ASICs, after which mining the major coins on an ordinary computer became pointless. At the same time mining moved to regions with cheap energy and a suitable climate, and the industry itself professionalized: data centers, hosting providers, equipment suppliers and repair shops appeared. For an ordinary owner of a few devices this means an infrastructure already exists around mining that you can use instead of building everything yourself.
The role of mining pools
A pool is not a type of miner but infrastructure that unites many of them. It solves the variance problem: a single device finds a block too rarely, whereas a pool splits the reward among participants and provides a regular stream of earnings. For this the pool charges a fee (at RuPool it is 1%, and the payout scheme is FPPS).
A pool also does technical work: it forms jobs, validates shares, keeps statistics and sends payouts. For a farm owner it is convenient that managing the hardware comes down to setting an address and a login while the pool does the rest. When choosing between options, use the criteria in How to choose a mining pool.
When choosing a format, assess your own resources honestly: time for maintenance, willingness to handle repairs and monitoring, access to affordable electricity and suitable premises. Many people start with one or two devices at home and move to hosting once scale or noise becomes a problem. The reverse also happens: some owners deliberately shrink their fleet when, after difficulty growth, older equipment stops covering its electricity.
A miner's economics
As in any business, mining has income and expenses, and the balance between them decides whether it is worth doing.
| Item | What it includes | What it depends on |
|---|---|---|
| Income | Block subsidy and fees, converted to your share of hashrate | Coin price, network difficulty, pool scheme |
| Electricity | Consumption of ASICs and cooling | Tariff, hardware efficiency (J/TH) |
| Hardware | Purchase and depreciation of ASICs | Market, lifespan, model efficiency |
| Placement | Rent, hosting, ventilation | Region and contract terms |
| Other | Pool fee, repairs, taxes | Pool terms, hardware reliability |
The key feature: income is tied to the coin and the network, in other words to the market, while costs are tied to fiat and kilowatt-hours. That is why different miners get different results under the same market conditions. Whoever has cheaper electricity and more efficient hardware has a bigger safety margin. To assess your own scenario, use the profit calculator and always test several price and difficulty cases. No estimate guarantees a future result.
One more feature is worth understanding: mining has no "entry ticket" in the form of a license or special knowledge, so the barrier to entry is set by money and electricity. That also makes the industry unforgiving of planning mistakes. A wrong tariff assumption, an overheating room or a poorly chosen model can turn a working operation into a loss-making one faster than it seems, so it is sensible to start small and test the calculation in practice.
Why miners seek cheap energy
Because the reward in coins is limited and competition keeps rising, a miner's profit is determined first of all by costs. The market works so that as difficulty grows, participants with the lowest cost per kilowatt-hour and the most efficient hardware win, and the rest drop out. This applies at every scale, from an industrial-zone farm to someone with a few devices in a garage. Hence many practices you will meet in the industry: locating in regions with cheap generation, upgrading to a new generation of ASIC, using surplus or associated energy, and immersion cooling.
Mining in Russia: the framework
Since 1 November 2024 mining in Russia has been regulated by Federal Law No. 221-FZ. Sole proprietors and legal entities operate through the miner registry kept by the Federal Tax Service; individuals may mine without registration within an electricity consumption limit (6,000 kWh per month). Mining income is taxable: for individuals that means personal income tax declared on form 3-NDFL. In addition, mining is banned in a number of regions, in some all year round and in others during peak load on the power system. Rules can change, so check current regulations or consult a tax adviser before you start.
FAQ
Do I need to be a programmer to become a miner?
No. To run an ASIC you connect it to the network and power, open its web interface and enter a pool address and login. The firmware does the rest.
How does a private miner differ from an industrial one?
In scale and cost structure. An industrial player deals in megawatts and its own infrastructure, a private miner in a few devices. The principles are the same; the difference is how energy, placement and maintenance are arranged.
Can one miner take control of the network?
In theory, controlling most of the network's power would allow attacks on transaction history, but for large networks such as Bitcoin that takes enormous spending. That is why decentralization and spreading power among many participants matter for security.
Can I mine without owning equipment?
Some services offer "cloud mining", but the risk of fraud and opaque terms is high. A more transparent option is to buy an ASIC and place it with a hosting provider while remaining the owner of the device.
Do I have to register to mine?
It depends on your status and scale. Individuals within the set electricity limit work without registration; sole proprietors and legal entities must be in the registry. Check the current requirements.