can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
If your transaction was sent to blockchain, it can not cancel. So be careful if you want to make a transaction. Or sometime your order has not been executed, exchange's support can cancel the order before it is on the blockchain. In my opinion that is the only way now. 
Topic: Can a bitcoin exchange or any altcoin transaction be cancelled due to error? (Read 349 times)
July 28, 2019, 11:28:26 AM
July 28, 2019, 08:30:55 AM
The blockchain is an immutable technological structure. Once anything has been transmitted through it, it can never be reversed or altered. One a bitcoin transaction has been sent and confirmed, it can neither be cancelled or reversed. That is a tampered proof.
July 28, 2019, 05:41:06 AM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
what is the meaning of you when the transaction or exchange occurs an error and hopes to return? I don't think that can be done, errors that are not from the system cannot be undone. Then from that when transacting, prioritize accuracy and read again if necessary and make sure the exchanges done are not error. July 28, 2019, 05:35:16 AM
If a transaction was made, it cannot be undone, because it is blockchain my friend. However, if you have paid a small fee, this transaction can take ages to get confirmed. I have waited for 6 days for a BTC transaction, so never get greedy by paying fees.
July 27, 2019, 03:39:22 PM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
Well I have a small trick on how to alter a sent transaction
Most preferably on etherum network;
Once you send out the token and you want to avert it, you immediately send out the token to another wallet address with a higher gwei.
NB: this works perfectly if you did the first transaction with a low gwei
July 26, 2019, 11:32:08 AM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
Unfortunately no. This is the disadvantage of blockchain as p2p decentralized network where you have to responsible with your own transaction. Once it enters the blockchain, it can't be reverted.
July 26, 2019, 11:06:04 AM
Once any transaction enters the blockchain, it cannot be revoked, that is one of the beauty of blockchain technology, the best you can hope for is that it runs out of gas and fails but there is absolutely no way for you to revert the transactions.
July 12, 2019, 09:33:25 PM
I don't think BTC will be able to withdraw once it has traded on the blockchain. If no transactions are recorded on the blockchain, contact the exchange technical team to roll back the data.
July 12, 2019, 08:47:43 PM
Unfortunately, it can't be undone.
If it is executed, then it is out of your hands, literally, since blockchain is distributed around the world.
You can track it's progress though, see where it goes and stuff.
I'm guessing you sent something to the wrong address?
If you made a mistake using an exchange wallet, there is a tiny chance something can be done.
But in most cases, no.
That's why it's improtant to have your own system of keeping track of addresses, keys, etc.
double and triple checking everything will help lessen mistakes.
If it is executed, then it is out of your hands, literally, since blockchain is distributed around the world.
You can track it's progress though, see where it goes and stuff.
I'm guessing you sent something to the wrong address?
If you made a mistake using an exchange wallet, there is a tiny chance something can be done.
But in most cases, no.
That's why it's improtant to have your own system of keeping track of addresses, keys, etc.
double and triple checking everything will help lessen mistakes.
July 12, 2019, 06:27:13 PM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
Even if you are putting a little fee and that will make your transaction will be trapped to the blockchain with low priority. When your transaction already broadcasted to the network and you can't do anything to reverse your transaction remember if your transaction already reached the block and that will be delivered. July 12, 2019, 06:22:51 PM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
I think you are taking it from the standpoint of an exchange. There must be a problem from the exchange, because this sometimes happens. If it does, the best you should do, instead of waiting for years, is to contact the support of the exchange and make enquiry on why that is happening. I believe it will be solved. July 12, 2019, 06:01:24 PM
Unfortunately, all transactions in the blockchain are irreversible. If you made some mistake, you can not fix it. I've had cases where I've lost money because of my mistake. But now these situations have taught me to be careful and check all the addresses several times.
July 12, 2019, 05:44:31 PM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
If the transaction is off the blockchain and just within the exchange database then it's possible, but once a transaction is being broadcasted to the blockchain, there is no stopping it. Except for rare case of the infamous 51% attack on the coin's blockchain network.
July 12, 2019, 04:22:50 PM
Ethereum transactions, especially ERC-20 token transactions could fail and tokens come back to you. This happens when you pay low fee. But in Bitcoin network the transaction could remain in mempool forever. 
July 12, 2019, 04:16:56 PM
Yes but it's not often after you have sent a bitcoin or altcoin and they notify you that the transcation was successful all you need to do is wait till the blocks are confirmed this might take few seconds or for some longer time
July 12, 2019, 03:47:17 PM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
Its practically not possible to reverse a confirmed transaction on blockchain. Once the transaction has been made then it remains irreversible. Therefore its very important to double check any transaction on blockchain before initiating it.
July 12, 2019, 01:25:48 PM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
Once a transaction has been confirmed, there is no way you can reverse it. But, if it has 0 confirmation, you can try Replace-by-fee(RBF)/doubling spending by using higher amount of fee. But looks like you don't have access to your wallet, so it is nearly impossible for you to "cancel" the transaction. 
July 12, 2019, 01:06:36 PM
the blockchain is created in such a way that if you sent a transaction then there is no way back. there is no way to turn around a bitcoin transaction
yes, all transactions on blockchain was "irreversible"
thats why people should double check all things before they make a transactions on blockchain network my friend
July 12, 2019, 07:08:35 AM
can a BTC exchange be terminated before it has been affirmed, or is it that once communicated it is beyond the realm of imagination to expect to drop whenever
Crypto transactions cannot be reverted in all manners at this is the good side, the bad side is the sender, he has no means to correct and or he will be able to carry the losses, and transactions can be seen by anyone if they wanted to see the transactions, but in your case, it cannot be reverted, and just accept the fact that once it is sent, it will be received by the addressee.
July 12, 2019, 07:00:25 AM
the blockchain is created in such a way that if you sent a transaction then there is no way back. there is no way to turn around a bitcoin transaction
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