BTC trading block

1.

The remitter will pay bitcoin directly to the other party according to the address of the payee through the computer or smart phone

after the transaction data of bitcoin is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed

the bitcoin peer-to-peer network stores all transaction history in the "blockchain". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. In fact, blockchain is a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history

extended data

users can buy bitcoin, and at the same time, they can "mine" bitcoin by using computers to perform a large number of calculations according to the algorithm. When users "mine" bitcoin, they need to use the computer to search for 64 bit numbers, and then compete with other gold miners by repeatedly solving puzzles to provide the required numbers for the bitcoin network. If the user's computer successfully creates a set of numbers, then they will get 25 bitcoins

from 2012 to 2014, bitcoin swept the world, and graally formed the "virtual currency" instry chain represented by bitcoin. This is a change in the financial instry and a new proct of the combination of the financial instry and the Internet. It represents a financial milestone in the new era and marks a new chapter in the history of the Internet. Bitcoin fund is one of the derivative procts represented by bitcoin in the era of "virtual currency"

according to the relevant news reports of Fuhui China, bitcoin fund will be open for operation in the autumn of 2014. Fuhui bitcoin fund, as the world's first operation mode of mutual benefit and win-win with financial management mode, is original and full of temptation and challenge

2. Ah, the transaction logic of bitcoin is generally based on a principle of a blockchain, and then as we say, it is a buy and buy out of content

3. 1. TEDA currency (usdt) is a virtual currency that links cryptocurrency with legal currency US dollar. It is a kind of virtual currency kept in foreign exchange reserve account and supported by legal currency
2. Contract trading is a general term for the future contract trading of bitcoin

warm tips: ① the above contents are for reference only, without any suggestions. The relevant procts are issued and managed by the corresponding platform or company, and our bank does not undertake the responsibilities of investment, cashing and risk management of the procts. ② There are risks in entering the market, so investment should be cautious. Before making any investment, you should make sure that you fully understand the nature of the investment and the risks involved in the proct. After a detailed understanding and careful evaluation of the proct, you can judge whether to participate in the transaction
response time: February 2, 2021. Please refer to the official website of Ping An Bank for the latest business changes
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4. 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.

5. 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.

6. 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.

7. 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

8. 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.

9. Bitcoin receives payments almost instantaneously. However, there is an average delay of 10 minutes before the network starts adding your transaction to a block to confirm the transaction and that you can use the received bitcoin. Confirmation means that there is a consensus on the Internet that the bitcoin you receive is not used to pay others, so it is recognized as your property. Once your transaction is included in one block, all subsequent blocks will include it, which will greatly consolidate this consensus and rece the risk of transaction cancellation. Each user can determine the time when the transaction is confirmed, but generally speaking, receiving six confirmations is as safe as waiting six months after a credit card transaction
anyone can become a bitcoin miner by running software on specialized hardware. Mining software monitors transaction broadcast through P2P network and performs appropriate tasks to process and confirm these transactions. Bitcoin miners can earn transaction fees paid by users to speed up transaction processing and additional bitcoin issued according to fixed formula

new transactions need to be included in a block with mathematical workload proof before they can be confirmed. This kind of proof is hard to generate because it can only be generated by trying billions of calculations per second. Miners need to run these calculations before their blocks are accepted and rewarded. As more people start mining, the difficulty of finding effective blocks will be automatically increased by the network to ensure that the average time to find a block remains at 10 minutes. Therefore, the competition for mining is very fierce, and no indivial miner can control the content contained in the block chain
workload proof is also designed to rely on previous blocks, which forces the time sequence of block chain. This design makes it extremely difficult to cancel previous transactions, because the workload proof of all subsequent blocks needs to be recalculated. When two blocks are found at the same time, the miner will process the first block received, and once the next block is found, it will be transferred to the longest block chain. This ensures that the mining process maintains a global consistency based on processing capacity
bitcoin miners can neither increase their rewards by cheating, nor deal with the fraulent transactions that destroy the bitcoin network, because all bitcoin nodes will reject the blocks containing invalid data that violate the bitcoin protocol rules. Therefore, even if not all bitcoin miners can be trusted, the bitcoin network is still secure
if you still don't understand, go to bitcoin home to see the deeper understanding of netizens.

10. 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.