Here's a recent news item: the recent US attack on Iran has brought Iranian mining machines to a standstill.
Many people have probably heard of terms like " mining ," " miner ," and " mining machine ," but may not fully understand what they actually mean. So today, let's briefly talk about what "mining" in the blockchain actually is.
Mining: What are you mining?
Mining involves creating new blocks, which contain everyone's transaction records. Whoever successfully adds a block to the blockchain first receives a reward (BTC). Therefore, mining is essentially a competition for the "right to record transactions ." Miners are the "bookkeepers," responsible for recording all transactions on the blockchain, this public ledger.
How is mining carried out?
Simply put, it's brute-force enumeration , letting the computer find the answer to a "mathematical problem" through brute-force enumeration. The so-called mathematical problem is a hash function , which is random, and the only way to find the target hash value is through brute-force trial and error.
Each block has a target hash value (e.g., requiring at least 18 leading zeros). Miners continuously adjust the random numbers within the block, repeatedly calculating the hash until they happen to find a value that meets the requirements. The first person to calculate the correct hash proves they have contributed "Work" (PoW) and is then eligible to record the transaction. This process is executed by powerful mining machines , consuming a significant amount of electricity .
Currently, there are three mainstream consensus mechanisms: PoW, PoS, and DPoS. This section mainly introduces PoW-type mining.
What is the significance of mining?
The core meaning is to increase the cost of malicious behavior , ensuring that no one can arbitrarily tamper with the ledger. The more miners there are, the greater the computing power required to tamper with the ledger, the higher the cost, and the more secure the blockchain becomes.
Miners' rewards
For each new block mined, the system generates a certain amount of new coins for the miners. This can be seen as a reward from the system, as the miners have invested a significant amount of computing power to maintain the network security. In addition, the tips paid by the senders of transactions packaged in the block also belong to the miners; this portion is paid by users of this blockchain.
Since miners earn their income in tokens, and token prices fluctuate greatly, while mining consumes a lot of electricity, mining is a high-cost, high-risk, and high-energy-consuming industry .
The price of BTC has now broken through $100,000 per coin, so miners are hoping for high returns and will be very active in mining during periods of rising Bitcoin prices.
Mining is an investment activity, and all investments carry risks. It's important to consider your individual circumstances before making a decision!
