# Etrade Checking Routing Number - Truths

Insteadthey went with Solution 2. The resulting currency, called bitcoin cash, increased the blocksize to 8 Mb in order to accelerate the verification process to allow a performance of around 2 million transactions every 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 out of the ground. However, bitcoin isnt bodily, so why do we call it mining

Because its similar to gold mining in that the bitcoins exist in the protocols design (just as the gold is underground), but they havent been introduced into the light 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 so as a reward for creating cubes 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 keep bitcoin running by participating in the relay of information. Anyone can run a node, you simply download the bitcoin software (free) and 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 a few nodes that it knows, who will relay the information to nodes they know, etc.. That way it ends up getting around the whole network pretty fast. .

Some nodes are mining nodes (usually known as miners). These group outstanding transactions into cubes and add them to the blockchain. How do they do this By solving a complex mathematical mystery that is part of the bitcoin app, and including the answer in the cube. The mystery that needs solving is to find a number that, when combined with the data in the block and passed via a hash function, creates a result that is within a certain range.

(For fiction fans, this number is called a nonce, which can be a concatenation of number employed once. In the case 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 predict exactly what the outcome will be. So, miners guess the mystery number and apply the hash function to the combination of the 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 intended result, or there might be none (in which case the miners keep trying, but with a different block configuration). .

The first miner to get a resulting hash within the desirable range announces its success to the remainder of the network. All the other miners immediately stop work on that block and start trying to figure out the puzzle number for your next one. As a reward for its work, the victorious miner has some new bitcoin. .

At the time of writing, the payoff is 12.5 bitcoins, which in time of writing is 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 reward, and it's a question of fortune and computing power (the further guessing calculations you can execute, the luckier you are).

Also, the expenses of being a mining node are considerable, not only due to the effective hardware needed (in case you've got a faster processor than your competitors, you've got a better chance of finding the correct number before they perform ), but also due to the large amounts of power that running these chips consumes. .

And, the number of bitcoins given as a reward for solving the puzzle will decrease. Its 12.5 now, however, it pits each four years or so (the next one is expected in 2020-21). The worth of bitcoin relative to cost of electricity and hardware could extend up during the next few years 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 view it now adjusted frequently, so that it takes on average approximately 10 minutes to process a block.

Why 10 minutes that's the amount of time 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 attained (expected some time in 2140).