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If you're mining Bitcoin, you do not need to figure the entire value of that 64-digit number (the hash). I repeat: You do not need to calculate the entire value of a hash.

Remember that ELI5 analogy, where I wrote the number 19 on a piece of newspaper and put it in a sealed envelope

In Bitcoin mining terms, that metaphorical undisclosed number in the envelope is called the objective hash.

What miners are doing with these huge computers and dozens of cooling fans is guessing in the target hash. Miners create these guesses by randomly generating as many"nonces" as you can, as quickly as possible. A nonce is short for"number only used once," and also the nonce is the key to generating these 64-bit hexadecimal numbers I keep talking about.

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The first miner whose nonce generates a hash which is less than or equivalent to the target hash is awarded credit for completing that block, and is given the spoils of 12.5 BTC. .

In theory you can Attain the same goal by rolling a 16-sided die 64 times to arrive at random numbers, but why on earth do you want to do this

The screenshot below, taken by the website Blockchain.info, might enable you to put all of this information together at a glance. You are looking at a summary of everything which happened when block #490163 was mined. The nonce that generated the "winning" hash was 731511405. The goal hash is shown on the top.

As you see here, their contribution into the Bitcoin community is that they confirmed 1768 transactions for this block. If you truly want to see all 1768 of those transactions for this block, go to this webpage and scroll down to the heading"Transactions." .

There's no minimum goal, but there is a maximum goal determined by the Bitcoin Protocol. No goal can be greater than this number:

Here are some examples of randomized hashes and the criteria for if they will lead to achievement for the miner:

You would need to get a fast mining rig , more realistically, join a mining pool--a group of miners who combine their computing power and split the mined bitcoin. Mining pools are somewhat similar to people Powerball clubs whose members buy lottery tickets en masse and agree to discuss any winnings. A disproportionately large number of blocks are mined by pools rather than by individual miners. .

In other words, it is literally just a numbers game.  You cannot imagine the pattern or make a prediction based on preceding target hashes. The difficulty level of the most recent block at the time of writing is 2,874,674,234,416, i.e. the chance of any given nonce producing a hash below the target is just 1 in 2,874,674,234,416--significantly less than 1 in 2 trillion. .

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The aforementioned site Cryptocompare offers a very helpful calculator which allows you to plug in numbers such as your hash speed, electricity prices etc. to estimate the costs and benefits.

Mining rewards are paid to the miner who discovers a solution to the puzzle , and also the likelihood that a participant is going to be the one to find the solution is equivalent to the portion of the total mining energy on the network.  Participants with a small percentage of their mining capability stand a very small chance of discovering the next block on their own.  For instance, a mining card that one could buy to get a few thousand bucks would represent less than 0.001percent of their network's mining power.  With such a small chance at finding the next block, it could be a long time before that miner finds go to website a block, and also the problem going up makes things even worse.  The miner may never recover their investment.  The answer to this predicament is mining pools.  Mining pools are run by third parties and coordinate groups of miners.  By working together in a swimming pool and sharing the payouts amongst participants, miners can get a steady stream of bitcoin starting the afternoon they trigger their miner.  Statistics on a few of the mining pools can be seen on Blockchain.info. .

Sure. As discussed, the simplest way to get Bitcoin is to purchase it on an exchange such as Coinbase.com. Alternately, you can consistently leverage the"pickaxe strategy". This is based on the old saw look at here that during the 1848 California gold rush, the wise investment was not to pan for goldbut instead to make the pickaxes used for mining.

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In a crypto context, the pickaxe equivalent are a company that manufactures equpiment utilized for Bitcoin mining. You can start looking into companies which make ASICs miners or GPU miners. .