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What is a mining pool?

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Written by UKey Wallet

Crypto Concepts & FAQs

Mining Pool is a collaborative system in which multiple miners jointly provide computing power and distribute mining profits according to agreed rules.A single miner can only obtain corresponding income when he finds a valid block; after joining the mining pool, participants submit a proof of computing power, and the mining pool counts the contribution and settles the income accordingly, thus reducing the short-term fluctuation of an individual miner's income.

Core Boundary:The mining pool collects computing power, not the encrypted assets in the user's wallet, and does not require miners to provide wallet private keys or mnemonic phrases.

Why do miners join mining pools?

In a blockchain using Proof of Work (PoW), finding a valid block is a probabilistic event. The probability of a miner getting a chance to produce a block is usually related to the proportion of its computing power to the computing power of the entire network. When miners with smaller computing power mine independently, they may have no income for a long time; mining pools find blocks more frequently by pooling computing power. The income is then distributed according to the effective contribution of the participants to make the income relatively smooth.

Mining pools can only reduce income fluctuations but cannot guarantee profitability. Actual results are still affected by equipment costs, electricity costs, network difficulty, mining pool fees and asset prices. For the basic relationship between the Bitcoin network, miners and blocks, please refer toWhat is Bitcoin?.

How do mining pools work?

  1. Assign tasks:The miner connects to the mining pool server and receives the data to be calculated.

  2. Submit Share:The mining machine continues to calculate, and after finding a result that meets the mining pool's internal difficulty target, it submits a Share to the mining pool.

  3. Verify contribution:The mining pool verifies the Share and estimates the effective computing power provided by each miner accordingly.

  4. Submit the block and settle:If a result meets the blockchain network difficulty at the same time, the mining pool submits the candidate block to the network; after the block is accepted, the mining pool calculates the income according to its rules, fees and payment thresholds.

The settlement methods and payment terms of different mining pools may be different. You should read the latest rules of the corresponding service provider before use. Basic mining process can be referred to Bitcoin Developer Guide.

What is the difference between Share and valid block?

Project

Share

valid block

goals achieved

Mining pool internal difficulty

Blockchain network difficulty

Main purpose

Statistical miner contribution

Propose a new block to the network

Whether to write to the blockchain

Usually not

After being accepted by the network, it will

Whether to directly generate block income?

Not necessarily

Generate corresponding income according to the agreement rules

Share is a record of workload, not a token that can be held or transferred in a wallet, nor does it mean that a block has been successfully mined.

What are the responsibilities of miners, mining pools and wallets?

  • Miners and Mining Machines:Provide computing power and bear equipment, electricity and operation and maintenance costs.

  • Mining pool:Coordinate tasks, verify Shares, submit candidate blocks and calculate returns.

  • wallet:Receive and manage the proceeds that have been sent to the on-chain address; asset control depends on the corresponding key.

Mining pool account passwords or API credentials usually cannot directly sign wallet transactions, but may affect the mining pool backend, payment address, or unsettled earnings. So you still need to use a strong password and turn on two-step verification (2FA). When setting up or modifying a payment address for the first time, the complete address should be checked in a trusted wallet.

Safety tips:Mining pools do not require wallet private keys or mnemonic words; in terms of payment permissions, users usually only need to provide a public payment address. Any page that requires the submission of a mnemonic phrase to "activate" or claim mining benefits should be discontinued immediately and the source verified.

Summary

Mining pools help participants reduce short-term fluctuations in block income by pooling miners' computing power and settling income based on effective contributions. Miners are responsible for calculations, mining pools are responsible for coordination and settlement, and wallets are responsible for managing received assets; the permissions of the three cannot be confused.

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