# Free Bitcoin Mining Game Fundamentals Explained

Instead, they went with Solution 2. The resulting currency, called bitcoin money, increased the blocksize to 8 Mb in order to accelerate the verification procedure to allow a performance of around 2 million transactions per day. At the time of writing, Bitcoin Cash is valued at \$545.00 to Bitcoins \$6,328.11.

When you hear about bitcoin mining, you envisage coins being dug from the ground. However, bitcoin isnt physical, so why do we call it mining

Because its like gold mining in the bitcoins exist in the protocols design (like the gold exists underground), but they havent been brought out into the mild yet (just as the golden hasnt yet been dug up). The bitcoin protocol stipulates that 21 million bitcoins will exist at some point.

They get to do this as a reward for creating blocks of confirmed transactions and including them in the blockchain.

Backtracking a bit, lets discuss nodes. A node is a powerful computer that runs the bitcoin software and helps to keep bitcoin running by participating in the relay of information. Anyone can run a node, you just download the bitcoin applications (totally free ) and also leave a certain port open (the drawback is that it consumes energy and storage space the network at time of writing carries up about 145GB).

One node will send information to some nodes which it knows, who will relay the information to nodes that they know, etc.. That way it ends up getting around the entire network pretty quickly. .

Some nodes are mining nodes (usually known as miners). These group outstanding transactions into blocks and add them into the blockchain. How do they do this By solving a complex mathematical mystery that is part of the bitcoin program, and including the answer in the cube. The mystery that needs solving is to find a number which, when combined with all the information in the cube and passed through a hash function, produces a result that's within a certain range.

(For fiction fans, this number is known as a nonce, which can be a concatenation of number used once. In the instance of bitcoin, the nonce is an integer between 0 and 4,294,967,296.)

How can they find this number By guessing at random. The hash function makes it impossible to forecast exactly what the output will be. So, miners guess the puzzle number and apply the hash function to the combination of that guessed number and also the information in the block. The resulting hash has to begin with a pre-established number of zeroes.

Whats more, there might be several nonces that produce the desired result, or there may be none (in which case the miners keep trying, but using a different block configuration). .

The first miner to acquire a resulting hash within the desired range announces its victory to the rest of the network. The rest of the miners immediately stop work on that block and start trying to find out the puzzle number for the next one. As a reward for its work, the victorious miner gets some new bitcoin. .

In the time of writing, the payoff is 12.5 bitcoins, which in time of writing will be worth nearly \$200,000.

Though its not nearly as cushy a bargain as it sounds. There are a whole lot of mining nodes competing for this benefit, and it is a question of luck and computing power (the further guessing calculations you can perform, the luckier you're ).

Additionally, the costs of being a mining node are considerable, not only due to the powerful hardware needed (in case you have a faster processor than your opponents, you have a better chance of finding the right number before they do), but also due to the large amounts of electricity that running these chips consumes. .

And, the number of bitcoins given as a reward for i was reading this solving the puzzle will decrease. Its 12.5 now, however, it pits each four years or so (the next one is anticipated in 2020-21). The value of bitcoin relative to price of electricity and hardware could extend up over the next few decades to partly compensate this reduction, but its not certain. .

The difficulty of this calculation (the required number of zeroes at the beginning of the hash string) is corrected frequently, so it takes on average about 10 minutes to process a block.

Why 10 minutes that's the amount of time that the bitcoin developers think is necessary to get a steady and diminishing flow of new coins until the maximum number of 21 million has been reached (expected some time in 2140).