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

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

In Bitcoin mining conditions, that metaphorical undisclosed number in the envelope is called the target hash.

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

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The primary miner whose nonce generates a hash which is less than or equal to the target hash is given 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 that

The screenshot below, taken by the site Blockchain.info, might help you put all of this information together at a glance. You're looking at a summary of everything which happened when block 490163 was mined. The nonce that generated the "winning" hash was 731511405. The target hash is shown on 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 find all 1768 of these transactions for this block, then go to this webpage and scroll down to the heading"Transactions." .

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

Here are some examples of randomized hashes and also official source the criteria for whether they will lead to achievement for your miner:

You would need to find a speedy mining rig or, more realistically, join a mining pool--a bunch of miners that combine their computing power and split the mined bitcoin. Mining pools are similar to those Powerball clubs whose members buy lottery tickets en masse and consent to discuss any winnings. A disproportionately high number of blocks are mined by pools rather than by individual miners. .

In other words, it's literally only a numbers game.  You cannot guess the pattern or make a prediction based on previous goal 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 1 in 2,874,674,234,416--significantly less than 1 in 2 trillion. .

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

Mining benefits are paid to the miner who finds a solution to the puzzle first, and the probability that a participant is going to be the one to find the solution is equal to the portion of the entire mining energy on the network.  Participants which have a small percentage of the mining capability stand a tiny chance of discovering the next block on their own.  For instance, a mining card that one could buy for a couple thousand dollars would represent less than 0.001percent of their network's mining power.  With such a small chance at finding the next block, it might be a long time before that miner finds a block, and the problem going up makes things even worse.  The miner may never recover their investment.  The answer to this problem is mining pools.  Mining pools are run by third parties and coordinate groups of miners.  By working together in a 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 mentioned, the simplest way to get Bitcoin is to buy it on an exchange like Coinbase.com. Alternately, you can always leverage the"pickaxe plan". This relies on the old saw that during the 1848 California gold rush, the wise investment was not to pan for goldbut instead to create the pickaxes taken for mining.

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