jewelry wholesale manufacturers What is the block in blockchain technology?

wholesale gold jewelry suppliers usa Which industry does not belong to the blockchain? Blockchain is a new application model of computer technology such as distributed data storage, point -to -point transmission, consensus mechanism, and encryption algorithm. In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential order in order, and is not tampered with and irrefutable distributed ledger in the way of passwordology.

jewelry making supplies wholesale prices Blocks are the collection of many transaction data. It is marked with the unique label of the time stamp and the previous block. Effective blocks are recognized by the entire network and will be added to the main blockchain after being recognized. The blockchain is a data structure that contains a block that contains transaction information.
Here, I use Bitcoin related knowledge to give a chestnut to explain it.
In the Bitcoin field, there is a concept of "miner". Miners refer to various network nodes that generate workloads through continuous hash operations. (Each node is a routing, the function collection of blockchain database, mining, wallet service)
Miners need competition to complete a mathematical problem based on the encrypted hash algorithm. The answer exists in the new block Who can give priority to this answer, who can broadcast on the P2P network to declare that they have obtained this block, and other absenteeism will realize that it has lost in this game, and they will start the mining work of the next block immediately. Essence Each miner has a special transaction in his block. They will use the newly generated Bitcoin (currently 25 bitcoins per block, in 2016, which is halved this year), and then pay to their Bit bits In the currency address. Once this block is recognized and verified, that is, it is added to the blockchain, his compensation can become an available consumption state.
In the Bitcoin system, an average of a new block can be found every ten minutes, in which the completely decentralized Bitcoin network (that is, is not controlled by any third party), and the independent automatic automatic automatic node is automatically automatic in each complete node. The difficulty adjustment will maintain the output rate of the new block at an average of one per minute.
The 32 regions of the generated time of a block generated = difficulty value X2/hashrate
(havehrate is the number of hash per second)
difficulty value = maximum target value r r
The explanation of it anthropomorphic.
Solders to find female tickets. The mother -in -law said that I have a lot of daughters, so I will give you some questions and solve one of the WeChat signals to one of the girls.
Solders to compete crazy, trying to break their heads to solve the problem. As long as one of them explained a question, he immediately confessed the world proudly that all the demonstrations were single. This girl was mine. You give up. Even if the other singles are not convinced, there is no way. It's not a matter of annoyance. After the lucky girl, Xiao Wang, who was recognized by her mother -in -law, could get the gifts of 25 currency units, which was a winner in life.
The mother -in -law will adjust the difficulty of the problem at the rate of solving the problem. Sometimes it ’s too difficult. I have a long time without a guy who has the ability to come to the door. Ah, you have to reduce the difficulty. Sometimes the difficulty is too simple, and the unit will marry one in less than 10 time. This is even more difficult. Hurry up the difficulty to improve the skills. By the way, this year is 2016, and my mother -in -law's gift will be halved. Essence Essence
. Essence Don't make trouble. Essence Back to the topic. Essence
The concept described above is actually the concept of "mining"
The so -called mining is to guess a Nonce value that allows the summary value of the block to be less than one target value that will be adjusted linearly according to the difficulty. This is also the so -called workload proof. To put it simply, it is to repeatedly calculate the head of the head, and constantly change the parameters until a process that matches the hash value.
Is when the node creates a candidate block, then the absenteeism is ready to start mining. The mining machine starts to run the SHA256 algorithm ultra -high -speed. These hardware will be connected to the mining nodes that exist on the computer through USB links, and then the mining node will pass the block head information to these hardware, allowing them to perform very high -frequency Nonce tests.
When a transaction is included in the block, it can be considered a confirmation. Every time after this block generates a block, the number of transactions of this item is added. When the number of confirmation reaches more than six times, it is usually considered that the transaction is safe and irreversible. So now, this transaction has been spread on the Bitcoin network, but only when it is verified and added to a block can this transaction be part of the blockchain.
The new transactions are constantly pouring into the Bitcoin network. When the nodes watch these transactions, they will temporarily put these transactions in a temporary trading pool that they respectively maintain. You can put these transactions from the trading pool to this new block, and then prove the legitimacy of this block by solving a difficult problem.