What is a cryptocurrency mining pool?



In the early days of Bitcoin (BTC), crypto enthusiasts only required a basic personal computer with an internet connection to generate new BTC tokens through a distributed computing process known as mining. 

However, with more people chasing the same number of block rewards, Bitcoin’s mining process has become more challenging with time. In fact, the quantum of rewards will progressively reduce by half every four years, making it less rewarding for individual miners who will need to allocate greater computational resources with time.

Available on blockchain protocols that employ a proof-of-work (PoW) consensus mechanism, this mining process requires application-specific integrated circuits (ASICs) to be deployed in the form of large rigs so as to complete the complex nature of mathematical problems within the time needed to mine a block.

With the increasing difficulty of the mining algorithm and the rewards for mining a block reducing with time, it has become impossible for a piece of single personal computing equipment to successfully mine a block. 

This has brought the concept of a cryptocurrency mining pool to the forefront, where individual miners or users come together and pool their computational resources in order to improve their chances of mining a block and share the rewards received among them. 

In existence since 2010, when Slush Pool was formed as the first Bitcoin mining pool, there are now many popular mining pools for cryptocurrencies like Ether (ETH), Zcash (ZEC), Bitcoin Cash (BCH), Bitcoin SV (BSV) and more to choose from.

Replete with their own dashboards that provide status on aspects like the mining hardware’s status, the current hash rate, estimated earnings and other parameters, the mining pools offer crypto users the opportunity to participate in the mining process of a particular cryptocurrency consistently and earn regular rewards in proportion to the computing power contributed.

Understanding the cryptocurrency mining process

Before we delve into what is a cryptocurrency mining pool and how an individual can join one, let us look at how cryptocurrency mining takes place and understand the key difficulties involved. 

Firstly, for any PoW blockchain protocol, the process of mining its native token involves solving math problems using computing power, where the correct answer is represented as the block’s hash number, and rewards are presented to the entity that solves the fastest. 

These rewards are presented in the form of native tokens, with the mining process programmed such that a new transaction block is mined after specific durations of time. In the case of Bitcoin, this time is around ten minutes and the complexity, or hash rate, is adjusted depending on the amount of computing power available on the network.

With more computing power, the hash rate proportionately increases and requires even more powerful computing power to be having any chance of solving the mathematical puzzle within each cycle time. 

This is the reason why cryptocurrency miners have graduated from using personal computers or CPU mining to using graphic processing units (GPUs) and now shifting entirely to custom-built rigs using hundreds of ASICs in order to mine cryptocurrency. 

These ASIC miners continue to evolve and use the latest chip technology to provide a hash rate that can increase the chances of mining Bitcoin or any other cryptocurrency. Depending on the hash rate, power consumption, the noise produced, and profitability per day, ASIC miners like the Bitmain Antminer S19 Pro, AvalonMiner 1166 Pro, and WhatsMiner M32 are preferred among the crypto mining community today.

Whether it be releasing new tokens into the system or verifying and adding transactions to the public ledger in the form of blocks, the mining process gets tougher as more miners compete for the same. 

Since the reward for mining a Bitcoin block is 6.25 BTC, it is quite lucrative from a monetary perspective and has motivated many miners to increase their computing capacity by purchasing expensive ASIC miners. 

Alternatively, those who would rather dedicate their existing computing capacity to earn lesser but consistent rewards prefer to join a cryptocurrency mining pool like F2pool, Slush Pool, or AntPool, and they like to combine resources and earn daily rewards for their contributions.

Steps in the cryptocurrency mining process

How do crypto mining pools work?

 A cryptocurrency mining pool is a collection of miners that work together as one entity to augment their chances of mining a block and share rewards among each other in proportion to the computing power contributed by them in successfully mining a block. 

The mining pool operator manages activities such as recording the work performed by each pool member, managing their hashes, assigning reward shares to each member and even the work to be performed by them individually. 

In return, a mining pool fee is deducted from the rewards distributed to each member, which is computed based on the pool-sharing mechanism and depending on how these cryptocurrency mining pools share rewards, they can be of the proportional type, pay-per-share type or completely decentralized peer-to-peer (P2P) pool type. 


The interactions between individual miners_ mining pools_ and the Bitcoin protocol

In a proportional mining pool, miners that are contributing their computational power receive shares until the time when the pool is successful in mining a block, which are then converted into rewards proportional to the number of shares received by each pool member.

Pay-per-share pools differ slightly from proportional pools in the sense that each member can encash the shares received on a daily basis, irrespective of whether the pool has been successful in finding a block. 

Last but not least, P2P cryptocurrency mining pools are more advanced versions where the entire pool activity is integrated as a separate blockchain to prevent the operator or any single entity from cheating the pool members.

Irrespective of the type of pool one chooses, it is important to check if the crypto mining pool is profitable after analyzing the computing power needed, electricity costs involved, the mining pool fee applicable and how often crypto mining pools payout. 

Usually, different cryptocurrency mining pools charge between 2% to 4% of the realized earnings, with most offering a daily pay-out mechanism at a predetermined time of the day. 

For contributors, though, the cost of purchasing dedicated ASIC miners and the regular cost of electricity needed to power them need to be carefully ascertained to understand if crypto mining pools are profitable.

What are the different types of crypto mining pools and how to start mining a pool?

There are a number of reputed cryptocurrency mining pools available for individual miners to join and start contributing toward. 

Binance, AntPool, F2pool, Pool BTC and Slush Pool are some of the best-known cryptocurrency mining pools that have an exemplary track record in terms of uptime efficiency and regular payouts being made to pool members. 

In fact, Slush Pool has been responsible for mining more than 1.3 million BTC since its inception, helping over 15,000 small individual miners collectively mining Bitcoin at a total hash rate accounting for 5-8% of the total Bitcoin network.

Instead of participating in a Bitcoin mining pool, individual miners can also join in mining other cryptocurrencies like Litecoin (LTC), Bitcoin Gold (BTG), Monero (XMR), ETH, and Ethereum Classic (ETC) among others, by joining the right mining platform. 

Amongst Ethereum mining pools, Ethermine, 2Miners, F2pool, Nanopool, and Ezil are some of the more established options for users to choose from, with each offering a different network hash rate and comprising hundreds to thousands of individual miners. 

Choosing which cryptocurrency to start mining with depends upon its price stability, the hash rate required to consistently earn decent rewards and the mining platform’s fees that will be minus the overall earnings.

Apart from registering for a cryptocurrency mining platform, individual miners will need to have mining hardware in the form of one or more ASIC miners, mining software installed and a secure cryptocurrency wallet to store rewards and other crypto holdings for transacting purposes. 

The more capital invested in advanced mining rigs or equipment, the brighter the chances of earning higher rewards, subject to the entire hardware being dedicated to the purpose of cryptocurrency mining. 

Additionally, having a fast internet connection and an uninterrupted electricity supply are essential to perform the work allocated by the mining pool operator at the fastest pace possible.

Advantages and disadvantages of a crypto mining pool

Cryptocurrency mining pools offer even smaller miners the opportunity to utilize their computational resources to earn a regular income without having to invest heavily in developing a dedicated mining rig that can cost millions of dollars. 

Periodic payouts, clear and real-time visibility of the rewards potential and benefit from the professional management of a pool operator are just some of the advantages of joining a crypto mining pool.

However, not all crypto mining pools are safe, as demonstrated by Poolin, which recently announced that it was suspending BTC and Ether (ETH) withdrawals due to liquidity concerns. Moreover, considering that crypto mining pools make money by deducting a mining pool fee from rewards earned by mining activities, the actual earnings for each pool member are considerably lower than what is possible in the case of being a sole miner. 

What’s more, is that the equipment needed for pursuing even mining pool operations can be very expensive and profits can be disproportionately affected by any increase in electricity or internet costs.

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