Complete Beginner's Guide to Bitcoin Mining

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Ngày cập nhật gần nhất: 15/4/2026

In the previous sections, Mytour has introduced you to everything about bitcoin, including what bitcoin is, where to buy and sell bitcoin, as well as guiding you on 2 methods to mine bitcoin using Raspberry Pi and Raspberry Pi2. In this article, Mytour will guide you through the complete process of mining bitcoin.

Before you begin, you need to understand that not everyone can become a bitcoin miner. Due to competitive profits and price volatility of bitcoin, it's challenging to realize monetary gains without speculating on prices.

If you're only intending to mine bitcoin for fun, then learning about or supporting bitcoin security without focusing on profit matters more.

If you want to earn bitcoin based on a fixed amount when mining bitcoin, but don't want to run your own physical hardware, you can purchase bitcoin mining contracts.

Furthermore, Bitcoin debit cards allow people to load debit cards with funds through bitcoin.

The comprehensive guide to bitcoin mining below will provide you with concepts, mining instructions, and some types of specialized hardware for bitcoin mining so that you can understand the basics when starting to earn money from Bitcoin.

What is Bitcoin Mining?

Mining bitcoin is akin to playing the lottery, where you compete with your bitcoin mining hardware against everyone else on the network to earn bitcoin. The faster your bitcoin mining hardware, the higher your chances of winning, as the bitcoin network adjusts roughly every two weeks to ensure the average time between blocks is 10 minutes.

Digging deeper, bitcoin mining secures transactions recorded in Bitcoin's public ledger, known as the blockchain. By conducting a random lottery where electricity and specialized equipment are fully equipped, the cost for bitcoin miners to break the Bitcoin network.

Bitcoin mining is the process of adding transaction records to Bitcoin's public ledger of past transactions. The ledger of past bitcoin transactions is called the Block chain. The blockchain is used to confirm transactions with the rest of the network.

Bitcoin nodes use the blockchain to distinguish legitimate bitcoin transactions to prevent bitcoins being spent elsewhere that have already been spent.

Bitcoin mining is designed to consume substantial resources and maintain a stable number of miners each day.

Each individual block must have proof of work (PoW) considered valid. This proof of work is verified by Bitcoin nodes using Hashcash.

The primary purpose of bitcoin mining is to enable Bitcoin nodes to achieve secure consensus, preventing counterfeiting. Bitcoin mining also serves as the mechanism for introducing bitcoins into the system: miners must pay any transaction fees as well as the 'subsidy' of newly created coins.

This is aimed at distributing the new currency in a decentralized manner and encouraging everyone to provide security to the system.

The term 'bitcoin mining' is used because the process resembles mining other commodities: it requires effort and time to create new currency at a rate comparable to commodities like gold being mined from the ground.

Fundamentally, bitcoin is a type of digital currency, not physical cash, so it is not printed like other paper currencies.

During bitcoin mining, your mining hardware runs a cryptographic hash function (2 rounds of SHA256) on a block. With each new hash function attempted, the bitcoin mining software will use a different number as a random element of the block, called a nonce. Depending on the nonce and the hash function, the block will produce a hash like the following:

93ef6f358fbb998c60802496863052290d4c63735b7fe5bdaac821de96a53a9a

This hash is very long. (It's in hexadecimal, meaning the letters A - F represent the digits 10 - 15). To ensure blocks are found every 10 minutes, there will be a difficult target. To create a valid block, your bitcoin miner must find a hash below the difficult target. So let's assume if the difficult target is

1000000000000000000000000000000000000000000000000000000000000000

Any number starting with a 0 will be lower than the target, for example:

0787a6fd6e0782f7f8058fbef45f5c17fe89086ad4e78a1520d06505acb4522f

Lowering the target to:

0100000000000000000000000000000000000000000000000000000000000000

Now you need to add 2 more zeros to the beginning of the target to be:

00db27957bd0ba06a5af9e6c81226d74312a7028cf9a08fa125e49f15cae497

Since the target is a massive number with tens of digits, a simplified number is often used to achieve the current target. This number is known as mining difficulty. Mining difficulty indicates that the current block is harder to mine compared to the initial blocks.

So a difficulty of 70000 means that to create the current block, you would need to do the work over 70000 times more than Satoshi Nakamoto had to do to create the initial blocks. Bitcoin mining hardware and algorithms are much slower and less optimized.

To maintain blocks roughly every 10 minutes, the difficulty is adjusted by dividing the formula by 2016 blocks. The Bitcoin network attempts to change to process 2016 blocks on the global network, which currently takes about 14 days. That's why, as the network's power increases, the difficulty also increases.

Bitcoin Mining Hardware

CPU

Initially, mining bitcoin with CPU was the only way, done using the original Satoshi client. In the quest to secure the network and earn more bitcoin, miners innovated extensively, and for many years now, mining bitcoin with CPU has been relatively futile. You could use a laptop, but you wouldn't earn a penny.

GPU

Around a year and a half after the inception of the bitcoin network, it was discovered that high-end graphics cards mine bitcoin much more efficiently, and everything began to change from there.

CPU has given way to GPU (Graphical Processing Unit). The parallel processing nature of some GPUs allows for a 50x to 100x increase in bitcoin mining power while consuming less energy.

Although modern GPUs can be used for bitcoin mining, AMD's GPU architecture outperforms Nvidia's architecture for bitcoin mining, and the ATI Radeon HD 5870 was the most cost-effective choice at the time.

FPGA

Similar to the transition from CPU to GPU, the bitcoin mining world has evolved with the introduction of Field Programmable Gate Array (FPGA) technology. With the successful release of the Butterfly Labs FPGA 'Single', bitcoin mining hardware has given way to specialized hardware manufactured solely for mining bitcoins.

Although FPGA doesn't accelerate mining speeds by 50x-100x like transitioning from CPU to GPU, the benefits FPGA brings through energy efficiency and ease of use are notable. A typical graphics card consumes over 400W of power, whereas a typical FPGA mining device delivers a hashrate of 826 MH/s at 80W.

A 5x improvement gave rise to the first bitcoin mining farms aimed at profitability. The bitcoin mining industry emerged.

ASIC

The bitcoin mining world is now 'more firmly rooted' in the era of Application Specific Integrated Circuit (ASIC). ASIC is a chip designed specifically to perform a single task. Unlike FPGA, ASICs are not used to perform other tasks.

ASICs are designed specifically for bitcoin mining. While not flexible, ASICs provide hashing power up to 100x while consuming less energy than all previous bitcoin mining technologies.

Unlike previous hardware generations before ASIC, when it comes to a 'breakthrough' in bitcoin mining technology, ASIC can be seen as a new breakthrough. CPUs gave way to GPUs, then GPUs gave way to FPGAs, and finally FPGAs gave way to ASICs. To this day, there's nothing that can replace ASICs, even in the near future.

ASIC products will be refined and performance-enhanced, but they won't provide 50x-100x hashing power or 7x energy reduction like previous technologies. Therefore, power consumption on ASIC devices is the most critical factor in any ASIC product, with ASIC devices having longer lifespans and being more useful for bitcoin mining.

In essence, suppose you buy an ASIC device today; that device will still mine bitcoin for 2 years if it has sufficient energy efficiency and electricity costs don't exceed output. Mining profitability is also determined by exchange rates, but in all cases, more efficient mining power leads to higher profits.

Bitcoin Mining Software

There are 2 fundamental ways to fully mine bitcoin: own or have a share in a bitcoin mining operation or use Bitcoin cloud mining and make sure you're not using a scam Bitcoin cloud mining service. Most miners opt for bitcoin mining operations. Before joining a bitcoin mining operation, ensure you have a bitcoin wallet to store your bitcoins.

Next, you'll need to join a bitcoin mining operation and set up your miners to connect to that operation. In a bitcoin mining operation, profits from any block created by members of the operation are shared among the members of the operation based on the amount of hashing power they contribute.

How much bandwidth does bitcoin mining require? If you're using miners to mine bitcoin, the bandwidth usage is negligible, about 10MB/day. However, what you need is a specialized connection to receive work updates as fast as possible.

This allows members in the bitcoin mine to have more stable payouts (also known as reducing variance), but your payouts may be reduced as banks may charge any fees.

Solo bitcoin mining alone will bring you larger profits. While solo bitcoin mining yields only small profits, if you mine regularly and pool profits from multiple bitcoin mining sessions, you'll clearly have a significant profit if using a non-long-term fee mining operation.

Bitcoin Cloud Mining

By purchasing Bitcoin Cloud Mining contracts, investors can earn bitcoin without dealing with hardware mining issues, software, electricity, bandwidth, and other offline issues.

Below are some Bitcoin Cloud Mining services, however, not all of these services are verified. There have been many Bitcoin cloud mining scams.

- Hashflare Review: Hashflare offers SHA-256 for bitcoin mining, and SHA-256 yields higher profits when automatic payouts are still in BTC. Customers must purchase a minimum of 10 GH/s.

- Genesis Mining Review: Genesis Mining is the largest provider of Bitcoin and cryptocurrency cloud mining. Genesis Mining offers 3 Bitcoin cloud mining plans at reasonable prices. Zcash mining contracts are also available.

- Hashing 24 Review: Hashing24 has been involved in bitcoin mining since 2012. They have facilities in Iceland and Georgia. Hashing24 uses modern ASIC chips from BitFury for maximum performance and efficiency.

What is Proof of Work?

Proof of Work is a very costly (in terms of resources and time) piece of data to produce, to meet certain transaction requirements. Checking whether the data meets those requirements is no longer important.

Generating proof of work can be a random, low-probability process, so there are many trials and errors before proving that the proof of work produced is valid. Bitcoin uses Hashcash proof of work.

Computational Challenge - Difficulty

Mining a bitcoin block is not a simple task as the SHA-256 hash of the bitcoin block must be less than or equal to the target for the bitcoin network to accept the block.

To simplify this issue: the hash of a block must start with certain numbers of zeros. The probability of computing a hash starting with many zeros is very low, thus requiring more effort. To create each new hash round, the nonce must be incremented.

Bitcoin Mining Difficulty

The challenge in mining bitcoin is measuring how difficult it is to find a new block compared to the simplest it could be. Every 2016 blocks, the bitcoin system adjusts the difficulty of bitcoin mining based on the time the previous blocks took to mine to ensure the average time between each block is 10 minutes.

As more bitcoin miners join, the block creation rate will increase. When the block generation speed rises, the difficulty will increase, pushing the block creation rate back down. Any block mined by miners that does not meet the target difficulty requirements will simply be rejected by everyone on the bitcoin network, and those bitcoin blocks are worthless.

Rewards

When someone discovers a bitcoin block, the bitcoin discoverer can reward themselves a certain amount, which is accepted by everyone on the network. Currently, this reward is 25 bitcoins, a value that halves every 210,000 blocks.

Additionally, miners are rewarded with other fees from users sending transactions. These fees act as an 'incentive' for miners, and they include transactions within their blocks. In the future, as the number of new bitcoin mining rewards created in each block diminishes, fees will make up a much higher percentage of bitcoin mining income.

So there you have it, Mytour has just guided you through the complete process of bitcoin mining. If you have any feedback or questions, feel free to share your thoughts with Mytour in the comments section below the article.

Before diving into Bitcoin mining, it's important to note that not everyone can succeed. High competition and Bitcoin price volatility make achieving profits without price speculation difficult. However, there are some tips to help you mine coins effectively. Check out how to mine Bitcoin on your phone for more detailed information.

Frequently Asked Questions

What are the essential steps to begin bitcoin mining?

To start bitcoin mining, you need to understand mining concepts, acquire the necessary hardware (like ASIC miners), choose appropriate mining software, and possibly join a mining pool. Additionally, set up a bitcoin wallet for storing your mined bitcoins and ensure a reliable internet connection for updates and stability.

Is it necessary to have a powerful computer for mining bitcoin?

Yes, having a powerful computer significantly enhances your chances of successfully mining bitcoin. The more efficient your hardware, particularly if you use ASIC miners, the faster you can compute hashes, leading to higher potential earnings. Standard CPUs are insufficient for profitable mining.

How does bitcoin mining contribute to the network's security?

Bitcoin mining secures the network by validating transactions and adding them to the blockchain. Miners compete to solve complex mathematical problems, ensuring that transactions are legitimate and preventing double spending. This decentralized verification process protects the integrity of the bitcoin ecosystem.

What is the average time taken to mine a single bitcoin block?

On average, it takes about 10 minutes to mine a single bitcoin block. This time frame is adjusted by the Bitcoin network approximately every two weeks to ensure that block creation remains consistent, despite fluctuations in mining power and difficulty levels.

Are bitcoin mining contracts a good alternative to hardware mining?

Yes, bitcoin mining contracts can be a practical alternative for those who wish to mine without the hassle of maintaining hardware. These contracts allow investors to earn bitcoin without dealing with electricity costs, hardware maintenance, or technical issues, although one should be cautious of scams.

What role does the Proof of Work system play in bitcoin mining?

The Proof of Work system is critical in bitcoin mining as it requires miners to solve complex cryptographic challenges. This mechanism ensures that blocks are verified and added to the blockchain securely, deterring malicious activities by making it costly and resource-intensive to alter transaction records.

How does mining difficulty affect bitcoin mining profitability?

Mining difficulty directly influences bitcoin mining profitability by determining how challenging it is to solve the cryptographic puzzles needed to add new blocks. As more miners participate, difficulty increases, which can reduce individual miner's chances of earning rewards unless they invest in more efficient hardware.

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