
Block mining refers to the process by which a blockchain packages transactions and adds new blocks to its ledger.
In networks like Bitcoin that use Proof of Work (PoW), miners leverage computational power to repeatedly calculate hash values, seeking results that satisfy the network’s “difficulty” requirement. The successful miner earns the right to produce the block and receives a block reward. In Proof of Stake (PoS) networks like Ethereum, validators are randomly selected to propose new blocks based on the amount of staked tokens, while other validators vote to confirm the block. Fundamentally, both mechanisms determine “who gets to record transactions and how,” but they follow different implementation paths.
Block mining determines whether transactions are added to the blockchain, impacts network security, and defines what rewards participants receive.
Understanding block mining helps you estimate transaction confirmation times and associated fees, recognize differences in security across public blockchains, and evaluate the potential returns and risks of mining or staking. For example, Bitcoin has slower block production but higher security, while Ethereum features faster blocks and relies on validator voting for finality.
Block mining operates through two major consensus mechanisms: Proof of Work and Proof of Stake, each with distinct participation models and cost structures.
In Proof of Work (PoW), miners select pending transactions, assemble them into candidate blocks, and repeatedly adjust a “nonce” to compute the block’s hash. The hash must be lower than a “target difficulty.” This difficulty dynamically adjusts so that, on average, the network produces a new block at regular intervals (e.g., roughly every 10 minutes for Bitcoin). The miner who successfully mines a block earns the block reward (newly issued coins) and transaction fees.
In Proof of Stake (PoS), participants stake tokens within the protocol. The system randomly selects validators according to weighted rules to propose blocks, which are then confirmed via votes from other validators. Malicious or consistently offline nodes are penalized by slashing their stake. Rewards are primarily distributed from transaction fees and inflationary issuance.
PoW can be thought of as “a hash power lottery—whoever finds the valid number writes the ledger,” while PoS resembles “staking-based rotation—stake more and follow the rules to be selected more often.” Both mechanisms require strict adherence to consensus rules; otherwise, blocks are rejected by the network.
Block mining is integral to public chain operations, mining pool collaborations, node services, and exchange-based financial products.
On Bitcoin, individual miners typically join mining pools, contributing their hash power to increase stability of earnings. The pool distributes rewards based on each miner’s share of contributed hash rate, reducing income volatility compared to solo mining.
On Ethereum, most users participate in staking through node service providers or exchanges. Validators are responsible for proposing and voting on blocks, receiving rewards on a periodic basis. If a node fails to participate or is misconfigured, penalties may apply.
For example, Gate’s Staking and financial product section allows users to stake ETH, ATOM, and other PoS assets. Partner nodes participate in block production, with rewards distributed periodically according to platform rules. Users do not need to operate their own nodes but should be aware of lock-up periods, estimated annual yields, and potential slashing terms.
During periods of network congestion, miners or validators prioritize transactions with higher fees, so users may notice “paying more for faster confirmation.” Some networks also offer additional revenue streams, such as Ethereum’s “Maximal Extractable Value (MEV),” where adjusting transaction order provides extra earnings.
You can engage in block mining by operating PoW mining rigs, joining mining pools, or staking on PoS networks—each path involves different requirements.
Step 1: Choose your network and method. If you prefer hardware investment and greater autonomy, consider PoW networks like Bitcoin. For lower asset commitment and simplified maintenance, explore PoS staking on networks like Ethereum.
Step 2: Evaluate costs and returns. PoW requires mining rigs, space, and electricity; returns are influenced by token price, mining difficulty, and transaction fees. PoS involves purchasing and staking tokens; returns depend on inflation rates, transaction fees, and node performance.
Step 3: Implement your strategy. For PoW, purchase mainstream mining rigs and join a pool. For PoS, either run your own node or participate via platforms. On Gate, navigate to Financial Management → Staking to select assets like ETH, review lock-up periods and projected yields, then confirm participation to earn rewards periodically.
Step 4: Ongoing operations and risk management. For PoW, monitor rig temperature and hash rate, track difficulty changes and electricity costs. For PoS, choose reliable nodes or platforms to avoid slashing due to downtime or rule violations; also pay attention to asset lock-up periods and price fluctuations.
Key metrics and events this year have shaped participant returns and strategies.
For Bitcoin in 2024, the block reward has dropped from 6.25 to 3.125 BTC per block, making miners more reliant on transaction fees and efficient rigs. Over the past year, total network hash rate has fluctuated around 500 ±150 EH/s (as of Q3 2025 statistics), with average block intervals still close to 10 minutes.
Mining efficiency continues to improve; mainstream rigs in 2025 offer power consumption ratios around 20–30 J/TH—substantially lower than earlier models—reducing electricity costs. The orphaned block rate (blocks found but not accepted by the main chain) usually ranges between 0.5%–1%, with improved network propagation helping reduce this figure.
For Ethereum in 2025, active validator numbers have exceeded one million, with block proposal intervals averaging about 12 seconds and total staked ETH in the tens of millions. In recent months, MEV has accounted for 10%–20% of validator revenue in many cases—sometimes higher during peak periods—but also brings compliance and technical risks.
Fees and congestion tend to follow cycles. In periods of high activity driven by popular trends in 2025, single transaction fees on several networks have climbed to several dollars or more; during calmer phases, common network fees remain lower. For miners and validators, these fluctuations directly impact block production earnings—creating peaks and valleys in income.
They are related but distinct: mining is akin to a “hash power competition,” while staking is more like “ticketed participation.”
In PoW systems, “mining” means using computational power to compete for block production rights; in PoS systems, “staking” involves locking tokens for a chance to be selected as a validator who proposes and confirms blocks. Many platforms label PoS rewards as “mining income,” but strictly speaking these are consensus rewards for staking—not requiring high electricity consumption.
For users, PoW demands hardware investment and electricity costs; risks include token price declines and increased difficulty. PoS requires tokens and node reliability; risks involve price volatility and potential slashing penalties. Your choice should depend on available capital, technical expertise, and liquidity needs.
Hardware needs depend on the blockchain type. PoW mining (e.g., Bitcoin) requires dedicated rigs (ASIC chips), which are expensive; PoS staking has much lower hardware requirements—typically a standard computer suffices. Beginners should first understand their chosen network’s consensus mechanism before assessing capital outlay.
Profitability depends on network difficulty, electricity costs, and token prices. In PoW mining, individuals compete against large pools; returns often fall below electricity costs. PoS staking has lower barriers to entry with more stable rewards—though these depend on the staked asset and overall network participation rates. Always calculate your investment payback period before deciding.
Key risks include hardware failure or obsolescence leading to higher costs, falling token prices impacting earnings, mining pool centralization risks, and environmental concerns from high energy consumption. Evaluate electricity costs and maintenance expenses ahead of time; pick reputable pools and regularly check equipment health.
Efficiency improvements are the main reason. Ethereum’s transition from PoW to PoS (The Merge) aimed to reduce energy usage while boosting transaction speed and security. PoS models are greener with lower barriers to entry—and are becoming the industry standard as traditional PoW mining is gradually phased out.
Gate offers several options: support for mainstream assets via staking (PoS), allowing users to earn steady yields directly on the platform; as well as services related to mining pools. Visit Gate’s mining/staking section for up-to-date project offerings and yield rates.


