What is crypto mining, and how does it work?

4
min read

What is crypto mining, and how does it work?

4
min read
Metallic Bitcoin symbol embedded in rocky terrain, glowing with red light, representing the concept of cryptocurrency mining.
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minutes

Ever wondered how new cryptocurrencies like Bitcoin or Ethereum magically appear? Spoiler alert: there’s no wizard behind the curtain-just a lot of computing power and some serious number crunching. Welcome to the world of crypto mining!


What is crypto mining?

Think of crypto mining as a giant, global puzzle competition. Miners act like digital bookkeepers, verifying transactions and adding them to the blockchain-a decentralised public ledger. In return for their hard work, they earn crypto rewards.

It’s kind of like a security team making sure no one cheats in a game. Whenever you send or receive crypto, miners verify the details to prevent sneaky moves like double spending (trying to use the same coin twice).

How does it work?

Imagine solving a really complex Sudoku puzzle, but instead of numbers, you’re dealing with cryptographic equations. Miners compete to find the right solution-called a hash-which is a unique digital fingerprint of a block of transactions.

Here’s the fun part: the first miner to solve the puzzle gets to add the block to the blockchain and earn new crypto coins as a reward. Since each block is linked to the one before it, any attempt to tamper with past transactions changes the hash, making it obvious that something fishy is going on. That’s how blockchain stays secure!


Centralised vs. decentralised cryptocurrencies

Not all cryptos play by the same rules.

Type of Cryptocurrency Who’s in Charge? Examples
Decentralised No single authority—controlled by miners and nodes Bitcoin, Ethereum
Centralised Managed by a company or government CBDCs, USDT


Centralised cryptos are often pegged to traditional money, making them more stable but less independent. Meanwhile, decentralised cryptos thrive on community power and security.


Why does crypto mining matter?

Mining isn’t just about earning coins-it keeps the entire blockchain system running smoothly. Here’s why it’s a big deal:

  • Transaction verification – Makes sure every transaction is legit and recorded correctly.
  • Network security – Decentralisation prevents any single player from controlling the blockchain.
  • Coin supply – New crypto enters circulation through mining.
  • Consensus mechanism – Helps everyone agree on a single, accurate version of the blockchain.
  • Incentives – Miners earn crypto rewards, which keeps them engaged and ensures the network stays active.


Ready to trade crypto?

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Want to learn more? Check out our other guides or try a risk-free demo account!

Quiz

What’s the main job of a crypto miner?

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Controlling the blockchain
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Verifying transactions and adding them to the blockchain
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Storing cryptocurrency for users
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FAQs

Can I mine crypto on my phone or laptop?

Technically, yes. But don’t expect to get rich-mining on regular devices is super slow and can overheat your system. Serious miners use powerful hardware called ASICs or GPUs.

Is mining bad for the environment?

Traditional mining uses a lot of electricity, which isn’t great for the planet. But newer methods like Proof of Stake (used by Ethereum 2.0) are much more eco-friendly.

How long does it take to mine 1 Bitcoin?

It depends on your mining power! On average, it takes about 10 minutes to mine a block, but mining 1 BTC solo could take years unless you're part of a mining pool.