Bitcoin miners by addressing the workload have proved that the mechanism has a certain amount of work, and in order to manage the Bitcoin network, confirm the transaction and prevent double payments.
Nakamoto explained in his paper and said, “There is no central authority either encouraging support to the Bitcoin miner network, or letting Bitcoin currency circulation system be the initial source of money.” Nakamoto Bitcoin is generated by the CPU’s power consumption and time consuming resources likened gold that is injected into the economy.
Bitcoin mining and node software is done mainly through peer to peer networks, digital signatures, and interactive proof systems to initiate zero-knowledge proof  and to verify transactions.
Each network node to the network broadcasts the deal, which broadcasts out of the deal after the miners (in computer networks online) have completed verification.
The miners used to prove the results of their work to express confirmation and after confirmation will be packed into a data block.
The data block is a data string hat that together forms a continuous chain of blocks. Nakamoto designed the first version of the bitcoin mining program; this program was subsequently developed for widespread use of first-generation mining software. This software became very popular from mid-2009 to 2010.
Each Bitcoin node will collect all the transactions that have not been confirmed, and the imputation is sent to a data block, and the miner’s node appends a random adjustment, and calculates the SHA-256 hash value of the data block.
Mining nodes constantly repeat the attempts to adjust until they find a random number generated by making the hash value that is below a certain target.
As the hash operation is irreversible, to find a random number of adjustments to meet the requirements is difficult, and requires an estimated total number of trial and error processes. At this time, the workload proof mechanism plays a role.
When a node that can be broadcast to the entire network is found, the solution of their results meets the requirements. Other nodes can receive this new solution from the blocks, and verify their compliance with the rules.
If other nodes are found by calculating the hash value that meet the requirements (op Bitcoin required targets), then the data block is valid, and the other nodes will accept the data block.
In addition to packaging the received transaction information to the data blocks, each data block will be allowed to issue a new bit number of coins, for driving the data block that was successfully discovered by the miners.
Bitcoin system determines the number of bitcoins issued in accordance with a predetermined rhythm. If other payment transactions have to be charged, then the miners will receive a fee.
Since the miners can decide whether a particular transaction will be packaged to the data block, the miners have the option of charging a higher fee for packaged deals.
Data block is expected to be produced at the rate of one every 10 minutes, but each new issue of bitcoins cannot contain more than 50, and this figure will be halved every four years, so the total number of bits will not be more than 2100 coins. With the decline in the number new issues of bitcoin, the fees will be the main motive of mining.
Those who are into bitcoin mining activities from the beginning will have easier access to Bitcoins, when compared to new miners.
The reason for this design in the early stages of development was to ensure Bitcoin can attract enough computing power to handle the data block.
In fact, if no one is engaged in mining, Bitcoin’s early trading activity cannot be handled; Bitcoin economy will also stop functioning.
In order to maintain uniform speed in the generation of data block, the generation of new data blocks will be adjusted periodically. If the speed of data block generated is accelerated, then it will increase the difficulty in mining and production of data block slows down.
Due to the large number of computing devices the ASIC added, the current mining difficulty rose upwards geometrically, and the current average is 50 percent every 15 days, so that the mining work of ordinary individuals has become extremely difficult.
Bitcoin miners were first mining using Intel or AMD CPU products. But because mining is a computer-intensive application, and with the rising number of people with complex mining equipment the performance gradually improved, and CPU mining had either no income, or even negative returns.
As of 2012, the miners gradually began to use GPU or FPGA and other such mining equipment. Meanwhile, the ASIC device also listed a large number of devices mid-2013 .
From July 2013, the entire network experienced a large number of operational ASIC devices presented straight up, in order to calculate the average count for July 2013.
All the GPU mining equipments have been unable to generate positive returns, including the FPGA device, which have not generated much income.
In September 2013 average operator force estimates for the personal development of existing small ASIC mining equipment in the next 1-2 months is close to no positive returns at all. A large number of operators belong to 5THash / s or a more clustered ASIC mining equipment monopoly. Individual mining stopped because there is no income, leaving many almost out of mining groups.
Bitcoin miners will charge a small fee for each transaction. Its main purpose is to prevent people from sending a large number of small transactions, which is a silly waste of network resources. In future, low incentive fee for Bitcoin blocks will become a major source of income for the miners.
In March 2014, fee per transaction was generally 0.0001btc. In the future, Bitcoin transaction fee will depend on the number of related bytes.
In the Bitcoin peer network the transaction history is stored in the block chain, the Bitcoin block chain transaction is found in the bill heading, “accounting”, and usually consists of Bitcoin client assist.
Payer transaction needs to be digitally signed for approval of the transaction. Bitcoin address will be recorded on the payee, for transactions without participation of the payee, the payee cannot be found online, or may even be non-existent.
Sources of financial transactions are referred to as “input”, the money that goes out is called “output.” The input must be greater than or equal to the output, the input is greater than the output of part transaction fees.
Miners cannot do input-output transactions, only the output, in addition to the miners’ output transaction, and an input must always be an output of some other transaction. When an input-output does not become another deal, it is known as “not spent”, or “account balance.”
After this transaction is included in the block and broadcast, the transaction will get “a confirmation.”
On an average, miners take 10 minutes to produce a block, and the birth of every new block will confirm this transaction plus a number.
When the confirmation number reaches six, usually the deal is considered safe enough, and it is difficult to reverse it.
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