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But how can you create a system Which Has a decentralized ledger How can you give someone the ability to update the ledger without giving them too much powerin case they become corrupt or negligent in their work
Well, Bitcoins rulesalso known as the Bitcoin protocolsolves this in a very creative way I like to call Who Wants to Be a Banker
In short, anyone who wants to take part in updating the ledger of all Bitcoin transactions, known as the blockchain, can do so. Whatever you need is to guess a random number that solves an equation generated by the system. Sounds easy, right
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Obviously, this guessing is all done by your PC. The more powerful your computer is, the more guesses you can create in one second, increasing your chances of winning this match. If you manage to figure correctly, you earn bitcoins and have to write the next page of Bitcoin transactions on the blockchain. .
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1. Once your mining computer comes up with the ideal guess, your mining program determines which of these current pending transactions will be grouped together into the next block of transactions. Compiling this cube represents your moment of glory, as youve now become a temporary banker of Bitcoin who has to update the Bitcoin transaction ledger known as the blockchain. .
2. The block youve generated, along with your solution, is sent to the entire network so other computers can validate it. Its somewhat similar to some Rubiks cube: The solution is very tough to achieve but quite easy to validate.
3. Each computer which validates your solution updates its copy of this Bitcoin transaction ledger together with the transactions you chose to include in the cube.
4. The system generates a predetermined amount of bitcoins (currently 12.5) and rewards them as compensation for the time and energy you spent solving the math issue.
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5. Additionally, you get paid any transaction fees which you can find out more were attached to the transactions you inserted into the next block.
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6. Each of the transactions in the block youve only entered are now confirmed by the Bitcoin network and therefore are virtually irreversible.
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So thats Bitcoin mining in a nutshell. Its called mining because of the simple fact that this procedure helps mine new Bitcoins from the computer system. But if you think about it, the mining part is just a by-product of the transaction confirmation procedure. So that the name is somewhat misleading, since the main goal of mining is to maintain the ledger in a decentralized manner. .
As you can look at these guys imagine, since mining is based on a form of guessing, for every block, a different miner will suppose the number and also be granted the right to update the blockchain. Of course, that the miners with computing power will succeed more often, but due to the law of statistical probability, its highly unlikely that the exact same miner will succeed every time. .
Now you know what Bitcoin mining is, you may be thinking, Cool! Free money! Where do I sign up Well, not so fast
Satoshi Nakamoto, who invented Bitcoin, crafted the rules for mining in a manner that the more mining energy the network gets, the harder it is to guess the answer to the mining mathematics problem. So that the difficulty of the mining method is really self-adjusting into the accumulated mining capability the network possesses. .
If more miners join, it will get harder to address the issue; when many of them fall off, it is going to get easier. This is known as mining issue.
Now, remember, this is on average. We can have two cubes being added minute after minute and then wait an hour to the next block. In the long run, this will even out to ten minutes on average.
As you can imagine, this type of self-adjusting mechanism has made a type of arms race to acquire the most efficient and strong miners as soon as possible.
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When Bitcoin first started out, there werent a great deal of miners out there. In fact, Satoshi, the inventor of Bitcoin, and his friend Hal Finney were a couple of the only people mining Bitcoin back at the time using their own personal computers.
Using your CPU (central processing unityour computers brain and an integrated component in any computer) was enough for mining Bitcoin back in 2009, since mining issue was reduced. Since Bitcoin began to catch on, folks looked for more potent mining solutions.