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

Remember that ELI5 analogy, where I composed 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 objective hash.

What miners are doing with those tremendous computers and dozens of cooling fans is guessing in the hash. Miners make these guesses by randomly generating as many"nonces" as possible, 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 primary miner whose nonce generates a hash which is less than or equivalent to the target hash is given credit for completing that block, and is given the spoils of 12.5 BTC. .

In theory you can achieve the same aim by rolling a 16-sided expire 64 days to arrive at random numbers, but why on earth would you want to do this

The screenshot below, taken from the website Blockchain.info, might enable you to put all this information together in a glance. You're looking at a list of everything which happened when obstruct 490163 was mined. The nonce that generated the "winning" hash was 731511405. The target hash is shown on the top.

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

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

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

You'd need to find a speedy mining rig or, more realistically, join a mining pool--a bunch of miners that combine their computing power and divide the mined bitcoin. Mining pools are comparable to those Powerball clubs whose members purchase lottery tickets en masse and agree to discuss any winnings. A disproportionately large number of cubes are mined by pools rather visit site 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 previous 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 goal is just 1 in 2,874,674,234,416--significantly less than 1 in 2 trillion. .

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The aforementioned website Cryptocompare offers a very helpful calculator that allows you to plug in numbers such as your hash rate, electricity prices etc., to gauge the costs and benefits.

Mining rewards are paid into the miner who discovers a solution to the puzzle , and also the probability that a participant will be the one to discover the solution is equivalent to the portion of the entire mining energy on the network.  Participants which have a small percentage of their mining power 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 the network's mining power.  With such a small chance at finding the next block, it could 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 operated 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 flow of bitcoin starting the day that they activate their miner.  Statistics on some of the mining pools can be seen on Blockchain.info. .

Sure. As discussed, the easiest way to acquire Bitcoin is to purchase it on an exchange such as Coinbase.com. Alternately, you can consistently leverage the"pickaxe plan". This relies on the old saw that during the 1848 California gold rush, the smart investment was not to pan for goldbut rather to make the pickaxes used for mining.

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