Bitcoin transactions can be cancelled

1. You may have been delayed in bitcoin transactions. For this reason, okcoin makes the following explanation on the concerns and doubts of users
methods / steps
1 bitcoin network is a global P2P network, which is jointly maintained by all the nodes (which can be understood as computers) accessing the network. On average, the global network (not a company or an indivial) will confirm the transaction once every 10 minutes. According to the network rules, the bitcoin received by the user needs to be confirmed six times (that is, one hour) before it can be used by the user to pay again
2 recently, bitcoin's arrival speed is slow, because there are too many transactions in the whole bitcoin network, and the block capacity is close to the upper limit, resulting in the congestion of bitcoin network, and slowing down the confirmation of bitcoin on major trading platforms. This is determined by the characteristics of bitcoin network itself and is not controlled by the trading platform
3 generally speaking, if the transaction is not confirmed by the bitcoin network for more than 3 days, bitcoin will be returned. Unconfirmed bitcoin will not disappear, please don't worry. This process is determined by the characteristics of bitcoin network itself, and the trading platform cannot intervene in the operation. Therefore, please wait patiently for the confirmation or return of bitcoin network
4 there is no way to cancel the exported bitcoin, which needs to be confirmed by the bitcoin miner; If you want to speed up the confirmation, you can appropriately increase the service charge paid to the miners, which is not collected by the platform.

2. 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.

3. 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
bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman. From the user's point of view, bitcoin is much like Internet cash. Bitcoin can also be regarded as the most outstanding three style bookkeeping system.

4. Bitcoin is an electronic currency proced by open source P2P software. Digital currency is a kind of network virtual currency. Bitcoin is also paraphrased as "bitcoin.". Short for: BTC
bitcoin does not rely on specific currency institutions to issue. It is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction
bitcoin is very similar to cash
the advantages of bitcoin are: no freezing, no tracking, no taxes, and extremely low transaction costs. Compared with people who speculate in currency, it is wealth, and people outside the currency circle may think it is a fraud
bitcoin is a relatively mainstream digital currency, which can be properly invested. There are risks in the transaction. You can invest cautiously. You can search the fire coin, coin security, OK, dobby trading platforms on the Internet, which can trade bitcoin. These are relatively large trading platforms. Invest in mainstream digital currency, do not invest in counterfeit currency or air currency. The rules of each trading platform are different. Now they are basically 24-hour trading, and the digital currencies that may be exchanged are different. You can go to the trading platform.

5. The state has only banned the opening of domestic exchanges, but not the trading of bitcoin. At present, all platforms are registered overseas

6. Bitcoin transactions on bitcoin networks cannot be withdrawn.

7. cancelable

8. It's better to operate in the entrusted management, but now I've turned to OK to check the original post & gt& gt;

9. 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.

10. sure. However, domestic bitcoin trading platforms have been shut down. Also check the latest bitcoin market