Bitcoin transfer block

1. bitcoin transfer fee is a fee paid by traders to miners, which is used to encourage miners to compete for bookkeeping and provide enough computing power for bitcoin, so as to ensure the security of bitcoin network. In some places, it is also called miners' fee
when users initiate a transfer in bitcoin network, they usually need to pay a certain transfer fee to the bookkeeper. The transfer service charge is generally 0.001-0.0015 bitcoins. Due to the limited capacity of the block to hold transaction records, miners will give priority to the transaction with high service charge, so the overpaid service charge can be recorded faster
the existence of bitcoin transaction fees can improve the transfer threshold, effectively prevent the blockchain from being full of junk information, and ensure that the miners still have the motivation to maintain the bitcoin network after bitcoin is g up.

2. Computers with bitcoin clients are called nodes, and all nodes on the Internet constitute a bitcoin network. Whenever a new bitcoin is generated and traded on a node, the node will broadcast to the nearby bitcoin node, and finally the whole network node will record the transaction information
in the bitcoin network, each node with a client installed has a distributed database to manage bitcoin proction, transaction, query account balance records, and update and record the latest records of changes in the bitcoin system
when you want to send 10 bitcoins to your friends. You need two things, one is the bitcoin address, the other is the corresponding private key. Bitcoin addresses are different from bank accounts. You don't need to sign a bunch of documents to apply for them. They are randomly generated, just a string of letters and numbers. The private key is also a similar string, but this is strictly confidential. The bitcoin address is like a transparent piggy bank. Everyone can see what's in it, but only the person with the private key can open it.
after you send the transaction application, the surrounding nodes will check whether your account has 10 bitcoins. If there are, they will agree to the transaction, and broadcast the message to the nearby nodes, which will be transmitted from one to ten, and from ten to 100, Soon the whole network will confirm the transaction information and write it to the block. Your friend will receive 10 bitcoins, and the transaction will be completed.
if you want to send small bitcoins, in theory, digital currency can be cut infinitely. At present, the smallest bitcoin unit is called "Nakamoto Tsung", which is equivalent to 0.00000001 bitcoins.

3. This has nothing to do with the browser, this need to go to a professional website to query, you can query. Because bitcoin transactions are recorded on the blockchain, there is no way to modify and delete them. However, Google browser is generally used
bitcoin, Ruitai coin, Laite coin, dogcoin and other digital currencies all use blockchain technology.

4. A block size of bitcoin is 1MB. There is no limit on the size of each transaction. A block can generally contain 2000-3000 transactions.

5. Each block contains the information of all recent transactions, a nonce (random number) and the hash value of the previous block. When the SHA-256 hash value of the whole block is lower than the current target value, it is marked as "resolved" (published and verified by multiple nodes). Usually, it is difficult to achieve the goal by hashing once, so nonce must be increased, and blocks must be hashed millions of times to achieve the goal.

6. You are right. Indeed, it will be rolled back. If the transaction is unfortunately packaged on the fork, the transaction is likely to be cancelled after the main chain is synchronized

the reason why we need six confirmations is that it is more difficult to obtain the optimal solution (to prevent single node fraud). One block may also be able to get an optimal solution, and it is basically impossible to get six blocks together. It has nothing to do with bifurcation

7. Each block contains the information of all recent transactions, a nonce (random number) and the hash value of the previous block. When the SHA-256 hash value of the whole block is lower than the current target value, it is marked as "resolved" (published and verified by multiple nodes). Usually, it is difficult to achieve the goal by hashing once, so nonce must be increased, and blocks must be hashed millions of times to achieve the goal. Bitcoin transactions are broadcast to the network through remitters, and all mining nodes (clients) collect bitcoin and add it to their working blocks. If the transaction volume is large, exceeding the average transaction volume, the network will dect a small amount of transaction fees. The first transaction in each block is special: it creates a new bitcoin for the first person to take a valid block. Other nodes (clients) will only accept the block when the transaction amount is correct. The number of bitcoins generated per block is 50, which is halved for every 210000 blocks (about four years). The network tries to create six blocks per hour. Every 2016 blocks (about two weeks), all bitcoin clients will compare this target with the number of blocks actually created, and modify the difficulty percentage of block acquisition to maintain this target. The client believes that the "longest" blockchain is effective. The "length" of the whole blockchain refers to the chain with the most difficulties, not the chain with the most blocks. This can prevent someone from forging and creating a large number of low difficulty blocks, which can be accepted as the "longest" chain by the spoofing network. How many blocks have been collected? Click here to see the current number of blocks collected. What is the maximum number of blocks? There is no maximum number. Will blocks continue to be added to the end of the blockchain at a rate of 10 minutes, even after all 21 million bitcoins are collected[ b] Yes. Blocks are used to prove that a transaction exists at a specific time. After all bitcoins have been collected, the transaction will still take place. So as long as someone trades bitcoin, the block will still be created[ b] How long does it take to acquire a valid block? No one can say it accurately. There is a mining calculator that will tell you how much time it might take. What does it mean if I calculate that the progress of a block has increased by 1%? There is no saying that the progress will increase by 1%. Each operation does not increase progress. After 24 hours of calculation, your chance of getting bitcoin is the same as when you first calculated it. This is the same as rotating 37 coins at the same time and making them face up. Every time you try, your chances of success are the same.

8. It's five seconds. This requires an internationally recognized RTXP Internet financial agreement to enable quick global transfers. The radar currency is international Alipay. Bitcoin does not have the function of quick transfer

9. Say strong, in the game book can only be regarded as entry-level graphics card, say weak, basically better than all the office books carrying graphics cards, such as mx250 / 150 and so on.

10. For the poor, it's good. All the games are taken. It's just that high-end games have the lowest special effects. Not bad money, get a gtx1080, cool.