Upgrade to at least v2.9.3... (note: If you have Windows 7, v3.x may have some issues... If you have Windows 10 or Linux or Mac, v3.x should be fine)

Do a search for the transaction ID on your favourite block explorer and see what the current status of the transaction is. As long as that transaction exists in the mempool as an unconfirmed transaction or it is already confirmed on the blockchain, you won't "lose it"...

I'm not sure how exactly you upgrade on Tails... I've heard various reports that it can be a bit problematic...

Did you try following the Linux install instructions here: https://electrum.org/#download

Although looking at the docs for Tails it seems to wipe any additional software every time you boot up... You'll probably need to get support from the Tails peeps on how to upgrade and/or install a newer version of Electrum.

People just call it wallet.dat out of habit (as that is the default name used by Bitcoin Core, and I believe at one point in earlier versions, Electrum was using electrum.dat)... However, as you have noticed, current versions of Electrum default to using NO file extension... All the wallets are just "walletname"... with NO .dat extension, eg. The wallet generated by default is simply called "default_wallet".

If you are moving Bitcoin from one address to another, it can only be achieved using an "on-chain" transaction... And therefore will require a transaction fee.

You can of course "import" private keys, to get access to coins from a different wallet, but this does not move them.

That all depends on how much you trust the wallet your import your seed/private key into... and also whether or not you trust your computer to be free of malware/keyloggers/screengrabbers etc so that the simple act of just exporting your seed/privatekey from your current wallet and/or typing your seed/private key into the new wallet, doesn't end up compromising your BTC.

Everyone is so desperate to save a few pennies on transaction fees... they don't seem to care about securing their $$$... #pennyWisePoundFoolish

No idea to be honest... seems like "pip" failed to install the necessary libraries... I have no idea why. I don't use a Mac

Try installing the libraries one at a time:

sudo pip install bitcoin
sudo pip install protobuf
sudo pip install pylibscrypt

See which one "chokes"...

Are you sure about that?


Seems like they tell you exactly where it has been saved too... maybe try and create another backup and check what directory it shows...

There isn't really a "usual" number as such... it ebbs and flows... Here is the chart for the last 60 days... https://blockchain.info/charts/mempool-count?timespan=60days

As you can see, occasionally it "spikes"... the trick is to check things like the number of unconfirmed transactions and recommended fees (https://bitcoinfees.earn.com/ and https://btc.com/stats/unconfirmed-tx) before transaction... to get an idea of what fees are currently the "average" and what the likely confirmation times are based on the fee chosen.

What the output is showing you, is that the file is indeed signed by ThomasV's key:

However, because you have not explicitly stated that you trust that key (ie. it's not in your personal circle of trust) nor is it trusted by any of your "trusted" signatures... you end up with the "scary" warning:

If you are satisfied that the key you have for ThomasV is trustworthy... and that ThomasV is a trustworthy person (because if you trust ThomasV, depending the level, by default you'll trust HIS trusted keys), you can add ThomasV's key to your list of trusted keys... then when you check the signatures, you won't get the warning.

As mentioned, there are various levels of "trust", and it can be a very subjective thing. Refer: https://www.gnupg.org/gph/en/manual/x334.html for more info

That looks OK... seems that you already have the key loaded on your system?

Did you download the .asc file? you might need to right click on it and select "save link as"... save it in the same folder as the .exe

Then just try running the 2nd command: gpg --verify electrum-3.0.1-setup.exe.asc electrum-3.0.1-setup.exe

I believe there were some issues previously with the methods used for implementing the BIP38 encryption, which meant that sometimes you could run into difficulty when trying to decrypt them. There was one particularly nasty episode of this when it required a specific browser version on a specific operating system!

If you're worried about it, what I would suggest doing is create a throwaway wallet using the original method, and then attempt to decrypt it using various methods (bitaddress.org, blockchain.info etc)... that should at least prove that the systems you are using are compatible.

In a word, Yes.

100,000+ unconfirmed transactions: https://blockchain.info/charts/mempool-count

Ok... try "saving" the transaction out to a .txn file... then try loading it into your other Electrum wallet(s?) ("Tools -> Load Transaction -> From File" and select the .txn file)... Hopefully it will load up and let you "sign" it in at least one of your wallets.

If it doesn't, then I'm sorry, but I'm out of ideas... you'll have to try and remember how you created the MultiSig and what keys you used.

If it makes you feel any better... and it probably shouldn't, because MD5 and SHA1 don't really prove much... but I got the same hashes as Pooya87

If all those addresses are in the same wallet, then chances are you're not increasing the security... as they will all be able to be generated from the same seed, so if the wallet/seed gets hacked, they'll all be exposed.

You'd need to create several new wallets, each with their own seeds and then split your coins across the different wallets.

In any case, you can use the "pay to many" option in Electrum and do one transaction that sends your coins from Address1 to Addresses 2, 3 and 4... and save a little on fees. Especially because fees are just insane right now.

What does the "title" of the Electrum Window say? something like "Electrum 3.0.1 - default_wallet [2fa]" or "Electrum 3.0.1 - default_wallet [2of2]" ?

I'm interested to know what the bits between the [ ]'s are?

It seems you have a MultiSig wallet of some description (either normal MultiSig or perhaps 2FA). Unfortunately, you cannot recreate a MultiSig wallet from only one private key... it needs all the keys that were originally used to create the wallet.

Also, with Electrum you should not need to save private keys... you should only be using "seeds" to restore wallets... that is the whole point of having seeds!

I'd suggest dropping back to v2.9.3 for the time being... it seems there might be an issue with recreating the 2FA codes on v3.0.1

v2.9.3 available here: https://download.electrum.org/2.9.3/

Watching only = No private keys...

Unfortunately, the ONLY way to move those coins is to have the seed or private key(s) for the address(es) that hold the coins. If the seeds you have don't regenerate the same wallet/addresses, then your coins are stuck. Nobody can help you.

If you want to reset the 2FA, you need to do:

- New/Restore -> Wallet with Two Factor Authentication -> I already have a seed
- Enter your 2FA seed
- Select "Keep" when prompted to "keep or disable"
- Put in email address you originally used
- It'll ask you to enter you 2FA code, instead, tick the "I have lost my Google Authenticator account"... 
- Put your 2FA seed in again

It'll show you the Google Authenticator QR Code and "secret key" so you can setup your GAuth again.

Is the accidental transaction confirmed yet?

If it isn't, check that Electrum isn't configured to only allowing spending of confirmed coins: "Tools -> Preferences -> Transactions" and seed if the "spend only confirmed coins" box is ticked... If it is, then untick it, save the changes and then you should be able to send.

Armory only works on desktop computers (Windows/Mac/Linux). You'd need to download and install in on a computer. Restore the wallet using your rootkey backup... and then export the private keys out. Then you could sweep/import those private keys into a wallet on your tablet/phone.

As far as I'm aware, there is no other applications (computer or tablet/phone based) that can import Armory root keys, aside from Armory itself.