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But how can you create a system that has a decentralized ledger How can you give someone the ability to upgrade the ledger without giving them too much powerin case they become corrupt or negligent in their job

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. All you need is to suppose a random number that solves an equation generated by the system. Sounds simple, right

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Of course, this guessing is all done by your PC. The stronger your computer is, the further supposes you can make in a second, increasing your chances of winning this game. If you manage to guess right, you earn bitcoins and get to write the next page of Bitcoin transactions on the blockchain. .

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1. Once your mining pc comes up with the ideal suspect, your mining program determines which of the current pending transactions will be grouped together into the next block of transactions. Compiling this cube represents your moment of glory, as youve now develop into a temporary banker of Bitcoin who has to upgrade the Bitcoin transaction ledger known as the blockchain. .

2. The block youve created, along with the solution, is sent to the entire network so other computers can validate it. Its somewhat similar to a Rubiks cube: The solution is quite hard to attain but very easy to validate.

3. Every computer that validates your solution upgrades its copy of the Bitcoin transaction ledger together with the transactions that you opted to include in the block.

4. The system generates a predetermined amount of bitcoins (currently 12.5) and rewards them as compensation for time and energy you spent solving the math problem.

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5. Additionally, you get paid any transaction fees which 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 merely pop over to these guys a by-product of this transaction confirmation procedure. So the name is somewhat misleading, since the main goal of mining would be to maintain the ledger in a decentralized manner. .

As you can 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 upgrade the blockchain. Obviously, the miners with more computing power will succeed more often, but due to the law of statistical probability, its highly unlikely that the same miner will succeed each time. .

Now that 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 way that the further mining power the network has, the harder it is to imagine the answer to the mining mathematics problem. Therefore the difficulty of this mining method is actually self-adjusting to the gathered mining capability the network possesses. .

If more miners join, it will get more difficult to solve the issue; if many of them drop off, it is going to get easier. This can be known as mining difficulty.

Well, he wanted to make a steady stream of new bitcoins into the system. In a sense, this was done to keep inflation in check. Mining difficulty is set so that, on average, a new block will be inserted every ten minutes (i.e., the number is going to be guessed every ten minutes on average). .

Now, rememberthis is on average. We can have two blocks being inserted minute after minute and then wait an hour for the next block. In the long run, this may even out to ten minutes on average.

As you can imagine, this type of content self-adjusting mechanism has made a sort 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 reality, Satoshi, the inventor of Bitcoin, and also his friend Hal Finney were a few 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 difficulty was low. Since Bitcoin started to catch on, people looked for more powerful mining solutions.