Will bitcoin transaction be invalid without confirmation

1. Wait a minute,

2. No, bitcoin transactions are irreversible. Only the payee can return bitcoin

any bitcoin transaction is irreversible and can only be returned by the payee. This means that you need to pay attention to dealing with indivials and organizations that you know and trust or have established credibility. On their side, businesses need to control the payment requests that customers see. Bitcoin system can detect typing errors and usually won't let you accidentally pay to an invalid address. In the future, there may be other services that provide consumers with more choices and protection.

3. Don't go to the platform. If you make money for others, you can use your wallet in private. If you fry money, it's because your wallet address is not bound to the trading platform!

4. 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

5.

Transaction mode of bitcoin

bitcoin is e-cash similar to e-mail, and both parties need "bitcoin wallet" similar to e-mail and "bitcoin address" similar to e-mail address. Just like sending and receiving e-mail, the remitter pays bitcoin directly to the other party through a computer or smart phone according to the recipient's address. The following table lists some websites that download bitcoin wallets and addresses for free

a bitcoin address is a string of about 33 characters long, consisting of letters and numbers, always starting with 1 or 3, such as & quot& quot; Bitcoin software can generate address automatically, and it doesn't need to exchange information online, so it can be offline. More than 2 bitcoin addresses are available. Figuratively speaking, there are about two grains of sand in the world. If there is an earth in each grain of sand, then the total number of bitcoin addresses far exceeds the number of all the sand on all these "earths"

the bitcoin address and private key appear in pairs, and their relationship is just like the bank card number and password. A bitcoin address is like a bank card number, which records how much bitcoin you have on it. You can generate bitcoin address at will to store bitcoin. When each bitcoin address is generated, a corresponding private key of the address will be generated. This private key proves that you have ownership of the bitcoin at that address. We can simply understand the bitcoin address as the bank card number, and the private key of the address as the password of the corresponding bank card number. Only when you know the bank password can you use the money on the bank card number. Therefore, please keep your address and private key when using bitcoin wallet

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. Bitcoin P2P stores all transaction history in a "blockchain.". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. Blockchain is actually a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history. Nakamoto predicts that when the amount of data increases, users hope that not all the data will be stored in their own nodes. In order to achieve this goal, he uses the hash function mechanism. In this way, the client will be able to automatically eliminate those parts that it will never use, such as some very early bitcoin transactions

6. Radar coin will, bitcoin did not encounter this situation!

7. The worst thing is not to transfer bitcoin directly from one trading platform to another, because some platforms do not support this transfer method. It is better to withdraw bitcoin from one trading platform to the wallet, and then transfer the coin in the wallet to another trading platform
in this case, it's better to consult the customer service staff of the platform. Similar situations may be encountered with counterfeit coins such as Wright coin, Ruitai coin and dog coin.

8. Should be all right, should be an invalid address, so it is an unconfirmed transaction ah! No deal.

9. It won't be cleared. You also need to pay for the site. Because this does not mean that there will be no more trading after falling to zero, but continue to fall. We also have to bear the responsibility.