no it's normal. you really should have learned how bitcoin works before using it. transactions take an average of 10 minutes for a single confirmation. i don't know what threshold of confirmations electrum deems fit but generally speaking 6 confirmations (60 minutes on average) is considered sufficient for a transaction to be deemed irreversible.

It can't be done on an offline computer. But it can be done in a watch-only wallet on an online computer. So the private key of the target address can be on an offline PC. The private key you are sweeping would still be exposed though.

zaptakes two things occured to me now after reading pooya87s post. First I suggest trying to open your wallet with a 1.8 version of electrum. If you manage to open it then you should view the seed and write it down for later restoration in a newer version. Sending the bitcoins to another address you control will probably not work because there have been changes to the bitcoin network that the 1.8 version doesn't support.

The other thing that's interesting is that you forgot to mention in the OP that your wallet was on a USB stick? Is that correct? I know a lot of lay people just yank the USB stick out without first unmounting it in software. They don't do the whole safely remove USB stick thing that you are supposed to do. So maybe you did that and that is the cause of your file corruption. It would explain why you were initially able to open the wallet but can't do it anymore.

yeah the console tab is what jhanzo means. do this for both the change address and the other one. let's see if either one is in your wallet.

One of those addresses is a change address that belongs to your own wallet. I think it is this one:

https://blockr.io/address/info/1B8NdzkEfHcP3p2Yvi4pjYEq7cd7FDjuHL

This address seems to be where you sent the coins:

https://blockr.io/address/info/1PpZGZ755gCAXAyujFPj244Yo6XJYkiR6y

Is this not correct?

try switching to a different electrum server using tools menu > network. you say the bitcoins are still in your wallet so what does this transaction do anyway? maybe you can save the transaction and then upload it to pastebin so we can see what it's all about. you can find the save option in the transaction details that omegastarscream talked about above.

LOL the developer doesn't control your wallet. It's not a bank!

Tell us what's going on and maybe we can guide you. If there is a problem with a transaction then tell us what you see in your electrum wallet and post the transaction id here so we can check it on the blockchain.

Yes that's right. There's a guide here if you are interested:

http://docs.electrum.org/en/latest/coldstorage.html

right click on the transaction on the history tab and select details. it will list which addresses the inputs came from.

note that if you are looking to refund  the sender then don't assume they control those input addresses. it could be that they sent the money from a shared wallet like those on exchanges. you need to contact them and ask them for an address to send the refund to.

remove your wallet file or somebody will come and steal all your bitcoins. if you want someone to brute force the wallet you should hire dave from walletrecoveryservices.com. you then deal with him in private.

it seems like your wallet is out of sync with the blockchain. click on the green/red orb icon in the bottom right of the window or go to tools menu > network to bring up the server selection dialog box. switch to a different server and wait for it to sync with it.

Wow thanks!

If you need something smaller then look at my plugin bitcoin address or the bitcoin way plugin for woocommerce.

In the case of my plugin the files in /includes/libs are all you need.  This code is borrowed from the bitcoin way plugin. The function mpk_to_bc_address() in electrumhelper.php does what you want.

I don't know how codeigniter libraries work or I would offer to convert this for you. But you can use the above php code directly can't you?

bump. still buying.

You can only deposit BTC into your skrill account. You can't withdraw money from your skrill account in the form of bitcoin. It's quite typical really. Everyone is happy to take BTC because it is an irreversible payment method but few will give you BTC in exchange for your dollars.

Since electrum is a deterministic wallet it is possible to derive all the addresses in the wallet with the extended public key which is also known as the master public key (MPK). You cannot derive private keys with just the MPK and without the private keys you cannot spend your bitcoins. So it is safe to install the MPK on your web server and let it generate addresses for users to send money to without any risk of theft. This is how bitcoin payments for woocommerce does it. It is also how mycelium gear works. It is how you should do things too.

You haven't mentioned which shopping cart software you are using? Perhaps there is a bitcoin plugin for that. Otherwise I can point you to opensource deterministic address derivation libraries in the programming language that cart is written in so you can make your own.

because i don't trust them so i can't recommend them.

your math probably isn't correct because it is supposed to take until the heat death of the universe even if you use all the computers in the world non-stop  . you're using just 1000 asics in your example.

part of that seed mnemonic is actually a checksum so you have to discount that. once you remove the checksum you find it's a 124bit seed. so 2^124 possibilities.

Install electrum on a desktop pc and run it. Choose to restore from seed and restore your wallet. Then after that is done press ctrl+A or select addresses from the wallet menu. A new tab labeled addresses should appear. Go there and  expand the list of "used" addresses by clicking on the arrow/+ sign next to "used". Can you see any familiar addresses there like the HEL one?

PMed you sir.