This is a used unit i cant find foucking manual anywhere thanks for asking.

Another thing to think about.

We are raised to take certain risks without thinking very much about them.  The risk is so low, and accepting that risk is so much a part of daily life, that we often don't even notice.  Therefore, when we find something new (but similar), we have a tendency to notice the risks in the "new" thing without taking into consideration how much identical risk we are accepting in the "old" thing.

I'm not sure which country you are from, but all countries have their own fiat currency.  All those currencies have similar risks.  Let's use the word "dollar" here, but you can substitute your own currency and government agencies as you see fit...

I'm not sure where you got this impression, but I suspect you are mistaken.  There are no "people who control the bitcoin code".  There is a group of people that control releases of the wallet that is called "Bitcoin Core".  They don't have much more power than that.  Individuals decide for themselves if they want to run that wallet, or if they want to run some other wallet. Other than changing the wallet software and convincing a large number of people to upgrade to their new version of the wallet, there isn't much else that the people that control that software can do.


This is a warning that the blockchain.info website chooses to place on their website when they notice that an input that was received at an address is used in more than one transaction that has been broadcast to the network.  Many times this warning is not due to any malicious attack.


Not txns.  Confirmations.  There's a difference, and using the wrong word is likely to lead to disagreement, misunderstanding, and confusion.

I understand that you're uneasy about it.  It's difficult to trust something that you don't completely understand.  I get nervous every time I get in an airplane, or hear about severe weather headed my way.  It can be even more disconcerting when you understand a few of the basics but don't know much about the important details. Like most things in life, at some point it comes down to a few options:

• Completely avoid the thing that you don't understand, since you can't make an accurate risk assessment without complete understanding of the entire process
• Trust the knowledge of other experts that do completely understand the process.  Rely on their expertise, and keep yourself aware of any new developments and warnings from those that have demonstrated reliable and trustworthy knowledge.
• Become an expert yourself.

...but the way u reacted to Keyser Soze, is bad. He was trying to explain u... may be u dont like that. But telling it useless is utter insult, which is most unwelcome.

... knowledge ...

It rarely happens.  It can happen accidentally if someone sends a transaction that isn't likely to be confirmed.  It can happen intentionally as per the previous descriptions if the attacker has the appropriate skills and resources.

Wait for a few confirmations.  Be aware of any significant changes in the rate of new blocks.  Be aware of any significant changes in the block orphan rate.

... answers ...

Multiple people are trying to explain u with reasoning. I'm sorry to say, that your adamant attitude is extremely unwelcome.

I suppose I shouldn't have wasted my time with "useless" answers. Insulting people trying to help you usually doesn't get you far...

You can't do it. The system is supposed to do it for you. Rational actors are supposed to preserve the system but as we all know people don't always live up to our version of rational.

I don't believe you were the victim of a double spend. It's more likely that your original bootstrap.dat file became corrupted. You then downloaded it over the corrupted copy adding to the problem. Did you finally delete the old copy of bootstrap.dat or rename it bootstrap.old? If I were you I would save my wallet.dat file, delete all Bitcoin folders, download a fresh copy of QT, copy over the old wallet.dat, and resync with the network.

...snip...

I looked at some of the transactions, but did not see any issues with double spending, even when you were still experiencing the problem yesterday. I admit I did not look through them all or maybe I missed something.

That blockchain.info warning shown on an address (it doesn't appear on transactions) can happen when unconfirmed coins are spent and blockchain.info thinks they may never be confirmed.

The warning went away because the transaction(s) in question received a confirmation. (If I am wrong about the blockchain.info's warnings, please let me know.)

The only difference in the two wallet screenshots is one (https://i.imgur.com/TdZfNG1.png) is missing transactions that the other (https://i.imgur.com/fyQCrWR.png) has listed. It seems the wallet fixed itself after the corrupted data issue was resolved and it was fully synced.

What questions do you still have?

It is not possible for select transactions, with many confirmations, to suddenly become unconfirmed in the blockchain and then disappear from your wallet. There is no way to "suspend" the transactions like you have suggested before. They either are confirmed or unconfirmed. Do you have an issue with a specific transaction? If so, what is the transaction id (not the address) and what problem do you think exists?

Also, as I previously stated, that warning you may see on blockchain.info doesn't necessarily mean anything.

It was an issue with his wallet not showing all the transactions. The blockchain.info warning he was seeing on some addresses doesn't necessarily mean anything.