Addresses that begin with 3 are multisig addresses. Addresses that begin with 1 are single private key addresses.
If you are trying to restore a multisig wallet, such as a 2fa wallet, you can only do that with the seed mnemonic. That is a series of random English words. In the case of a 2fa wallet it'll be 25 words. You have to select the correct wallet type too when restoring a multisig wallet. The correct type is the same type as the original wallet i.e. 2fa in the case of a 2fa wallet or multisig in the case of other multisig wallets. Once you've restored a 2fa wallet it ceases to be a 2fa wallet. All the private keys are now on your computer so it's a single factor wallet now.
Do you have any guide to back and restore it to other wallet because in electrum its always error when i am making a sign message with electrum.. To restore a 2fa wallet you need the 25 word seed mnemonic. Do you have it? If yes then run electrum, choose file menu > new/restore, give your new wallet a suitable name and then on the next step choose 2fa as the wallet type. After that you just enter the seed mnemonic and set a password. In future if you want to open this wallet use file menu > open. As for signing messages with multisig addresses you have been told in that other thread that it isn't possible. |
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Addresses that begin with 3 are multisig addresses. Addresses that begin with 1 are single private key addresses.
If you are trying to restore a multisig wallet, such as a 2fa wallet, you can only do that with the seed mnemonic. That is a series of random English words. In the case of a 2fa wallet it'll be 25 words. You have to select the correct wallet type too when restoring a multisig wallet. The correct type is the same type as the original wallet i.e. 2fa in the case of a 2fa wallet or multisig in the case of other multisig wallets. Once you've restored a 2fa wallet it ceases to be a 2fa wallet. All the private keys are now on your computer so it's a single factor wallet now.
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If this has been asked please direct me to correct thread. If its really dumb please explain why.
If i create a new electrum wallet. I have money transferred into it. Then i delete wallet from my computer. If my computer has not been previously hacked, is this a fairly secure method of storing bitcoins. Obviously i have my seed written on paper. So five years from now could i just create wallet from seed and everything would be there?
Thanks,
Valdos
Deleted files can be recovered. They are just marked as free space by the operating system. If you get malware before the OS overwrites that area of the disk with other data the malware has the opportunity to recover the wallet file and get at your coins. It's far fetched no doubt because no one creates malware to go fishing for bitcoin wallets among deleted files. But it's possible. |
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Yes, I meant Circle not Circ. No, I am not seeing a transaction number during send, but I do have one for the receive from Circle. I don't see how it's a Circle issue as the transaction from Circle to Electrum appears to be completed. I run into the "Warning: Invalid Lines Found -- Line 1: <address of wallet I attempt to send to>" I am running version 2.6.4 Electrum. Nobody is familiar with the error or warning message I am receiving? I have adequate funds for transaction. If my send to wallet address is incorrect or not valid would that cause this warning/error message? I don't believe it is a wrong address; I've checked it 3 times. Go to blockchain.info and paste the target address in the search box there. Tell us what happens. I think the address you are trying to send to is an invalid address and that is why electrum is refusing to send coins there. When you paste it into blockchain.info it should tell you the same thing i.e. it's an invalid address. You may have a typo somewhere in the address. |
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That's a multisig bitcoin address. There is more than one private key for that. I don't know whether litecoin electrum supports multisig or not but if it does you can restore your multisig wallet in that. You will need all your extended private keys or your seed mnemonics. The extended private keys start with xprv and the seed mnemonics consist of random English words.
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you should upgrade to the latest stable version of bitcoin core. 0.11 is old. whatever bug you are encountering may have been fixed in newer versions of the program.
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It's my first time buying bitcoins ever. I don have anyone to help me so I kind of just freestyled it and now I'm deeply regretting it as i may have lost my bitcoins. (it was only £32 but thats quite a lot of money to me lol). So i will just explain what i did. I bought the Bitcoins using Bittylicious and sent them to a randomly generated bitcoin address from an address generator online. I spent ages messing about, trying to import the bitcoins to Electrum not knowing that all I had done was use the bitcoin address to try to import them, rather than the private key, which was also provided on the address generator. However I paid no attention the private key. Frustrated, later on I closed the address generator tab, which had the only record of the Private Key. I had not written it down or saved it anywhere. So, having lost the private key, is there any way i can get my bitcoins back to spend them? I'm guessing no... any replies would be greatly appreciated  If you can get access to your bitcoins with just the address then so can anyone you give the address to to receive bitcoins. Did you not think about that? Yeah your coins are gone. |
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The litecoin was sent from Bittrex to my bitcoin wallet, and Bittrex told me that I just need to import my private key from my bitcoin address/wallet that I sent it to, to a litecoin wallet. The problem I'm having is that I'm following the instructions to import the private key into the wallet, but the litecoin wallets that I downloaded don't seen to recognize the private key. I checked the bitcoin address that the litecoin were sent to, and it looks like all the litecoins are still there, but I just can't figure out how to import the private key and retrieve them.
Did you read my post just above yours? Litecoin addresses are a different format altogether and it is not possible to send litecoins to a bitcoin address. If you still think that that's what you did then how about sharing the address in question with us so we can see for ourselves? |
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I deleted the wallet.dat by accident. I replaced the wallet.dat while bitcoin core was still running which caused an error and then the wallet.dat was gone.
If you run bitcoin core and there is no wallet.dat file in the data directory then bitcoin core will generate a new unencrypted wallet.dat file. It will obviously be empty of any coins. I think that if you found unencrypted private keys in WIF format then those are from the empty wallet.dat file that core generated. |
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You should post this as an issue on github. If you can help with the translation then that would be great. Electrum is made by volunteers. |
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The only thing you can do is use some general purpose data recovery software to "undelete" the deleted files. But if you keep using the hard drive on which the files were the OS will overwrite the deleted data so you first need to stop using that hard drive. You have to boot your computer off another hard drive or a linux live CD and then you use the data recovery software to find the deleted files on your restored hard drive. If the amount of coins is greater than a few hundred USD you should get this done by professional data recovery people because this is not something that a newbie can do.
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I didn't realize that Electrum had both a bitcoin and litecoin wallet, so I downloaded the wrong wallet (bitcoin instead of litecoin) and sent litecoin to it. What will happen? Is is possible to retrieve my litecoin or is it unretrievable? Thanks for any help!
Litecoin addresses begin with an L. Bitcoin addresses begin with a 1. Both litecoin and bitcoin have checksums to avoid typos. It is not possible to send litecoins to a bitcoin address. The litecoin client you use will refuse to send them there because the address would not be a valid litecoin address. So what exactly did you do? |
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If you are going to connect the android device to the online PC then it's not going to be cold anymore. But apart from that what you want can work. Look up the minimum version of android that electrum will work with on play store.
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I'm not a cryptologist so I'm starting to regret posting in this thread I quoted this bit below because I thought it would answer your question about a larger size seed: In either case brute forcing the seed would allow you to gain access to all the private keys, where as brute forcing a single private key only gives you access to that key. It is generally speaking academic if the seed has sufficient entropy because keys with 128 bit key strength are considered beyond brute force anyways.
I've highlighted the relevant bit. DeathandTaxes is someone who knows what he's talking about. |
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Type "which electrum" in a terminal. it'll tell you the location of the executable file. You can then copy that location into your gnome launcher creation window.
However I will again recommend that you stop using linux for something so important until you become a lot more comfortable using it.
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Dabura667 is right on the money as usual. However if you want to make a larger seed (like 256 bits) you *can* do that. The make_seed command line option will generate larger seeds: So you have 128 bits (+15 bits extra thats irrelevant) + key stretching ? Am I correct? What 15 extra bits? NVM There is a discussion here on this subject. Some of it refers to the old 1.9 branch. One thing that stands out: Private keys only have 128 bit key strength. Not 160 bit and not 256 bit.
and this too: In either case brute forcing the seed would allow you to gain access to all the private keys, where as brute forcing a single private key only gives you access to that key. It is generally speaking academic if the seed has sufficient entropy because keys with 128 bit key strength are considered beyond brute force anyways.
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First of all you shouldn't have had to restore from seed when upgrading electrum on the cold storage machine. Electrum would have found your wallet and upgraded it automatically.
Second you didn't upgrade your watch only wallet? You should upgrade that and then create a new transaction to sign with the cold storage wallet.
Edit: I see from the other thread that you've made a right royal mess of things. Sorry but you shouldn't be using linux and doing offline/cold wallets unless you really know what you are doing. I suggest upgrading electrum on your watch only system, creating a new wallet*, select restore and enter your seed. This will bring your wallet online. Then you can use it as a regular online wallet and forget about complicated cold storage.
* to create a new wallet select file menu > new/restore, choose to restore a standard wallet. to open this wallet in future use file > open.
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How can I see or generate a single xPub key for the multi-sig wallet so I may view all the transactions in a wallet-watching service?
There is no single xpub because it's a multisig wallet. If the service you are using does not support electrum multisig wallets then you can't use it to create a watch only wallet. BTW if you enter the 3 xpubs when restoring a wallet using electrum it will create a watch-only wallet. So why not just use electrum itself? |
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