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What is Hash Rate and Why Does It Matter?

September 26, 2023

Cryptocurrency miners and network nodes monitor the market. Instead of relying on a single regulating authority, you put your faith in the decentralized system. The hash rate is a critical element in the realm of cryptocurrencies that maintains the safety and effectiveness of blockchain networks. The blockchain system’s hash rate evaluates the hardware’s health, security, and mining difficulty. The higher the hash rate, the greater the earning potential for a miner.

Mining digital currencies are incredibly competitive, and the hash rate is crucial. Comprehending hash rate is critical whether you are a professional crypto miner or new to this exciting world of digital currencies. This article will explain what hash rate is, how it works, security issues due to hash rate, and how it affects profitability. Let’s get into the details so everything is clear concerning the hash rate, as it is the most vital component of the mining process.

Table of Contents

    Hashrate Explained

    A proof-of-work (PoW) cryptocurrency network’s hash rate measures its processing capability.

    A hash function is a form of computation that accepts data in digital format as input and returns it as an encrypted string of letters and numbers as output.

    Cryptocurrency miners use the hash function to solve the mathematical Riddles to create one money unit. The hash rate is the rate at which the solution is found.

    How Does Hashrate Work?

    When a miner is mining a block to authenticate a block and add it to the blockchain system using an algorithm for hashing to produce an encrypted code randomly, the mining machines attempt to estimate the hash value in a blockchain network.

    The hash rate is the number of guesses per second on the blockchain network. The hash is solved when a miner predicts an estimate less than or equal to the intended hash’s numeric value. The successful miner can add the following block to the blockchain and earn crypto rewards (block rewards).

    Bitcoin Hashrate

    Bitcoin’s hash rate is the ability of a miner to produce new Bitcoins through the mining process using complex mathematical computations. The current Bitcoin hash rate is 432.68 EH/s having a mining difficulty of 57.12T at a block height of 809,420.

    The chart attached below represents the data from last year. It depicts how Bitcoin’s hash rate increased a lot one year ago (from Sep 2022- Sep 2023).

    BTC hashrate chart

    How is Hashrate Calculated?

    The hash rate is important as an indicator of a blockchain network’s safety and the mining difficulty for miners to obtain block rewards.

    The more miners in a blockchain network trying to mine blocks, the less likely an illicit attack on the blockchain network is. The hash rate also affects the mining difficulty of a particular blockchain.

    As the hash rate increases, specific blockchains raise the problem of mining a block. Competing in cryptocurrency networks with extremely high hash rates may be difficult for individual miners.

    One can use several calculators to determine the hash rate of mining hardware when required. The list of these available hash rate calculators includes Whattomime, excellent hash, coward, etc.

    The hash rate is calculated in different units such as mega hashes per second, tera hashes per second, giga hash per second and many more, depending upon the value.

    Importance of Hash Rate in Cryptocurrency Mining

    The hash rate is an essential element of blockchain that strengthens the miner’s work. The hash rate is crucial as a function of the overall security of a blockchain network, as well as the mining difficulty for miners to collect block rewards.

    The more miners attempt to mine blocks in a blockchain network, the less likely a fraudulent attack on the blockchain web is.

    Hash rate influences the mining difficulty of a specific blockchain. Certain blockchains increase the difficulty of mining a block as the hash rate grows. Individual miners may find competing in cryptocurrency networks with exceptionally high hash rates challenging.

    Effects of Hashrate on Security

    The security of a network can be compromised if the hash rate produced is not compelling. A network is secured when encryption is added to every transaction.

    Complex mathematical computations are carried out to solve the complex problems to add a verified block to the blockchain. When it is done, a hash rate is generated.

    The security of a cryptocurrency network can be determined by its hash power.

    If the value of the hash rate is more, it will increase the difficulty of an attacker to corrupt the system; there will be an increased number of computational devices validating transactions.

    The higher hash rate will require the miner to spend more as more electricity will be needed to attack the network to carry out fraudulent activities.

    Factors Affecting the Profitability of Cryptocurrency Miner

    factors affecting the profitability

    1. Mining Hardware Cost

    The most critical component in determining profitability is the cost of mining hardware. The miners having high prices will lead to no savings. The more powerful the gear, the higher the buying price. Investing in mining hardware that delivers compelling hash rates is better, and ASIC miners are the best choice, for it to take a long time to return the initial investment.

    2. Electricity Cost

    Electricity is a crucial element for operating mining hardware. The mining process requires a constant supply of energy; hence, the profitability will undoubtedly be affected. Therefore, a miner must calculate the electricity cost and purchase miners delivering compelling hash rates at low electricity consumption.

    3. Hashrate

    If a miner maintains a fixed hash rate as the network’s hash rate rises, the miner’s estimated future cryptocurrency transactions will fall while their costs remain constant, reducing the profitability. A higher hash rate is better when the mining is in operation, as the lower hash rate at a higher power consumption can significantly affect the output of mining hardware.

    4. Operational and Maintenance Cost

    Beyond installing and setting up the mining hardware, the operation and maintenance costs will also affect the profitability. The mining equipment will require a cooling system if it gets heated up. It will also need internet connectivity for its operation. Hence, after setting up the maintenance and operational factors comes into the picture.

    Another important factor that paves the way for potential attacks affecting the hash rate is the 51% attack. Let us walk you through what a 51% attack is and how to prevent it for better hash rate performance.

    What is a 51% Attack?


    A “51% attack” happens when a single miner or mining group gains control of a Proof of Work-based blockchain and double-spends some of its money. The attackers can prevent the authorization and ordering of new transactions. Attackers can then modify sections of a blockchain and reverse transactions.

    A 51% assault typically gets beyond the blockchain’s security mechanisms. Depending on the attacker’s mining power, the attack’s impact can be modest or severe. If the attacker has a higher proportion, the attacker is more likely to assault the system. The same factor likewise determines the attack’s damages.

    An actual 51% attack takes only a few steps. The entity or person interested in attacking the network must acquire enough hash power to effectively mine blocks on a private duplicate of the network’s chain. This hidden chain continues in parallel with the original.

    As a result, the key to carrying out a 51% attack is purchasing a network’s hash power, which should be as expensive as possible. A 51% assault cannot occur if a hostile actor cannot pay to take over a network.

    How to prevent 51% Attack?

    There are a few ways that can help to prevent the 51% attack and safeguard data information:

    • Limiting the hash power control

    The blockchain should prevent any miner or group of miners from controlling more than 50% of the hashing power. A single miner or a group could not assault the network by creating the longest validated blockchain.

    To carry out the attack, the attacker must have robust equipment and a lot of energy. An attacker may also require luck because the mining process is random.

    An ASIC miner is less likely to encounter the 51% attack than GPUs or other mining hardware. It is due to its enhanced capability and strengthened features.

    • Proof of Stake

    It is vital to make mining difficult, regardless of the blockchain network size. All Proof of Work networks incentivizes miners to upgrade their equipment continuously. If the miners cannot solve the computation, they will receive no mining rewards because they lack validation and authentication of the transaction.

    In contrast, some miners find the Proof of Stake mechanism safer than the Proof of Work protocol. PoS incentivizes control by the wealthiest users in its most basic form; however, in most situations, networks have progressed past this structure to more decentralized alternatives like Dpos(Delegated Proof-of-Stake).

    • Using Strong Network

    A user using the PoS or Dpos in a blockchain network leads to a significantly lower stake level, voted as a block validator.

    It enables any user with the network stake to become a block validator – the equivalent of a miner in a Proof of Stake network. In most cases, such validators are elected by the community, like in the case of cryptocurrencies.

    It eliminates 51% of attacks, and as a result, they can be removed from the network if found anytime soon that they are manipulating the data.

    Finally, 51% of attacks are always a possibility. The key to avoiding such crimes is the network’s community agreeing to defend the value of immutability and decentralization.

    Read More: Why Bitcoin isn’t Afraid of 51% Attacks?

    Explore the Latest ASIC Miners

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    The hash rate is an essential factor that slides in when talking about cryptocurrency mining. It provides better outcomes if the best choice is made. ASIC Miners are the best for carrying out mining operations as these miners are strong, offer robust mechanisms and deliver more significant outputs. Some factors affect the profitability and security of a mining network, but with the right choices, one can surpass the hurdles associated with the profitability and security factors.


    • How to protect the Blockchain network from 51% Attack?

      Limiting the hash rate control to a miner’s hand, including proof-of-stake and using a robust network community, can potentially save the blockchain network from a 51% attack.

    • Which factors affect the profitability of a miner?

      The factors that affect the profitability of a miner are mining equipment cost, electricity cost, hash power, operational cost, and maintenance cost.

    • How does the security get affected due to the hash rate?

      The hash rate is directly related to security; if the hash rate is compelling, the network’s deposit will be high, whereas the blockchain network will be easily corrupted with low hash power.