What is a mining pool is a collection of multiple client/generator miners who share their processing power in a network to generate a block, splitting the block reward afterwards. The share is directly proportional to the amount of work the miners contributed to solving the said block. A miner's contribution is demonstrated through a solved proof of work that needs to be valid.
How and why it started
Merged mining emerged when individual miners began to struggle to generate blocks in a reasonable amount of time, with slower miners taking years to generate even a single block. As a result, miners began pooling their resources to speed up the block generation process, so that all miners involved consistently received a share of the block reward, rather than once every few years at random.
This mining method is effective in reducing the volatility of the block generation reward, resulting in a more even distribution of returns.
On average, mining with low-performance devices can take a long time to generate an entire block. Mining also consumes a lot of electricity, so with more devices with higher performance, more energy consumption is generated. And a higher electricity bill.
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Mining methods:
Here are some of the most commonly used methods in pool mining:
Pay per share
First pioneered by BitPenny, the second oldest mining pool, pay-per-share mining involves offering an instant fixed payment for each solved share. The payment comes from the pool’s current balance, so withdrawals can be made regardless of the state of the block solving process. By doing so, pool operator cheating and timing attacks cannot harm the pool’s earnings.
This method has the least amount of risk and if there is any loss by the hosting server, miners will receive a payout that is less than the total amount expected.
Pool of slats
This method is a scoring-based approach. Miners are discouraged from switching between groups within a round due to the fact that actions since the beginning of the round carry less weight than recent ones.
Total pay per share
Created by BTC.com, a highly popular web wallet, full pay-per-share utilizes the high transaction fees and shares some of them with miners, giving it a major advantage over the pay-per-share method. It calculates a standard transaction fee over a certain period and then adds it to the block rewards, with the rest left to be distributed further, as in the pay-per-share approach.
P2Pool
P2Pool is a mining method that uses mining nodes that operate on a chain of shares, similar to Bitcoin's blockchain technology. The block reward is awarded among the most recent shares on this shared blockchain each time a block is found. Payment is made via generation.
Cloud Mining
Cloud mining allows users to mine Bitcoins by outsourcing hashing power from other hardware devices. This is done by signing a mining contract that provides the user with the power for a certain period of time. This method is ideal for those who do not want to manage their own hardware.
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Multipool mining
Multipool mining is used by those who want to switch between the most profitable altcoins to mine at the moment. The status of altcoins is determined by an algorithm that calculates profitability, block times, and exchange prices. This mining method increases or stabilizes the value of the mined altcoin. Most multipools automatically exchange the mined altcoin for a major currency (currently Bitcoin), to avoid the need to make wallets for different currencies.
Conclusion:
A mining pool is a great way to mine Bitcoin for beginners who don’t have the financial resources to buy and maintain a large number of devices. But the main appeal of pooled mining is that it normalizes your earnings without having to spend years finding a block.