If someone else created a wallet (most probably blockchain.com (formerly blockchain.info) for you, i agree with LoyceV, you got scammed.

This is a very common scam for quite some time now.

The 2 most often heard scenarios are the following:
1) They create a watch-only wallet for you, where you only can view BTC's sitting on the scammers address.
2) They create a real wallet for you, where you need to send some coins from an exchange to.

In the fist case, you don't have access to any coins at all.
In the second case, the attacker knows the seed which is needed to access the bitcoins (seed != password on a website).

Such claims are always made by people with hidden agendas or no knowledge at all.

The whole bitcoin network is using a 'huge' amount of energy, yes. But it covers world wide money transfers.
The banking sector does consume WAY more energy. And the money is WAY less secured.

The security behind bitcoins PoW is the key element. And this argument can't be beaten.

Finally.

Mycelium definitely was one of the best wallets around until other wallets were created with segwit support.
Since then, for me there wasn't any mobile wallet which was close to being perfect.

Supporting segwit is definitely a good first step, but i think there are still some features which would be very handy if they would reach a big userbase.

I am definitely looking forward to the segwit support, since this will have a real influence on the daily usage of BTC.

If the administrator restricts the access to/from special ports/addresses, the easiest way would be to either setup a VPS or route the traffic through another network (e.g. your home network).

Using a VPN to route the traffic to your home network is the most elegant way to circumvent their measurement.
The traffic will be encrypted and is not recognizable as bitcoin-related traffic. Just some 'random' data to/from your home network.

Fortunately you won't need pruning. The current size of the blockchain is at about 184 GB.

You might also want to backup the chainstate folder (on the same sd card, in a different directory).
This will allow you to get to a working state if your current chainstate will get corrupted.




Feel free to update regarding stability and convenience.
We'll also gladly assist in any occurring problems.

What libaries did you try out ?

One of the best libary is from peter todd (https://github.com/petertodd/python-bitcoinlib).
It is not outdated and working properly.

It is documented relatively well. You shouldn't have any problems figuring it out.




You should first learn programming overall before starting a project you don't understand.
If you limiting yourself to the lowest amount of lines, you don't program properly yet.

Don't expect someone to give you a full tutorial to create your project. Learn the basics, then advance.

Weird, i thought blockchain.info had 17 word seeds earlier before changing to 12 word seeds.

Did you create multiple 'accounts' (within blockchain.info) using this seed ?
If so, you need to change the derivation path according to the account number (0 = 1st, 1 = 2nd) to:

The easiest way probably would be to use blockchain.com directly to recover it (e.g. through Lucius' link).

That's not really a good reason.
Your files can not be accessed when your computer is shut down, yes.

But malware could theoretically access these information while your computer is running. If ledger live is then protected by a password, no information can be extracted.
Otherwise you'd leak some information there.


Even though i believe that people using full drive encryption know how to protect against malware, this shouldn't be unmentioned.
For a standard user a password definitely is recommended.

This.. is a local file. It is on YOUR computer only (on your desktop), dear ASKU.
If you want to share screenshots, upload them to a site (e.g. imgur) and post the link here.




This is a very very detailed explanation of your issue. Thanks for being that detailed...

I suggest you read the "READ BEFORE POSTING"-thread before posting..
Then edit your post accordingly and add all relevant information.

You might want to read what i have wrote earlier:



Logically, you therefore don't have to consolidate them first.
Your wallet simply picks some UTXO's for you (e.g. from 'old' AND 'new' addresses) and creates a transaction.

Also.. there is no 'newest' or 'oldest' address. All addresses are equal.


You don't have to move your coins between your addresses at all. Just simply receive coins, and later send coins.
Your wallet will handle everything for you.




Of course it is not free. This is a normal on-chain transaction.

There are no seed files.
There are wallet files and seed's. Those seeds are mostly encoded as 12-/24- word seeds.

Am i right assuming that you NEVER wrote these word seed down ?


Also, i heavily doubt your 'laptop software' is deleting everything on shutdown. I am not aware of any firmware doing this actually.
Are you using a live linux distro ? Because thats something completely different and definitely not 'laptop software'.

You might start off with explaining WHAT programs you EXACTLY use. Usually, you are able to recover deleted files, but only if you immediately stop using that hard drive.




Yes, without the seed (or the private keys which are derived from the seed) there is no way to access your coins.

If an malicious actor gets to install malware on your computer, he has full control over your PC.
This means once you open your wallet, the malware will be able to move all your funds out (assuming the malware is aimed at this task).

Even a keylogger would gain access to the password. Making it 'invisible' when typing doesn't add anything regarding security (except maybe that nobody can stand behind you to get the password).




Do not use them.
Even if you use them offline, they might have a smaller key space.

The best would be to use a proper wallet (e.g. core or electrum) on an offline machine, generate a few private keys, write them down together with the addresses.
If you do this on a linux live system (usb live boot), after a shutdown all information will be gone .

Possible? Yes.
Recommended? No.

The whole purpose of a hardware wallet is that the seed is being generated AND kept in an isolated offline environment.
If you use your seed which has been generated OR entered OR used on an pc with had an internet connection at ANY time, you are destroying the whole purpose of a hardware wallet.
You might as well stay with a desktop wallet in this case.

Just create a transactions. Fees are relatively low currently anyway. Don't cheap out on transaction fees. You are risking all of your coins which will be stored on your nano s (currently AND in the future) if you don't generate the seed properly.

Answer the questions we ask you, if you want proper help. Ready my last post and please answer my questions.

Regarding your concerns, usually wallets are HD wallets (unfortunately you didn't reply to my question, so we don't know which of the 40 wallets you are talking about).
HD wallets do generate a private- / public- keypair for each incoming transaction.




How did you discover that ? Chances are high you just misinterpret what you see.
Each address has its own private key. But all of them are derived from the seed used (backup ?).

You seem to have quite a lot misconceptions about how bitcoin / wallets work. Please answer all questions as detailed as possible. This makes it way easier for us to help you.

If you don't have the seed or the correct private key, you are out of luck.

But, first start off with the wallet you were using. The private keys should be stored inside of this wallet.
How to exactly extract the private keys (to import them into another wallet) depends on the wallet you are using (which one is it ?).


Can you share the address you are talking about ? No transaction should be 'stuck' (unconfirmed) for 3 months.
Even 1 sat/B transactions (lowest possible fee) do get confirmed relatively fast.

So please share the address with us or check it yourself on a blockexplorer whether the transaction is confirmed or unconfirmed.
Note, that 'unspent' means that the UTXO is sitting on this address and has not peen spent yet (ready to spent -> therefore unspent).

'It' didn't decide anything. If your password isn't accepted, it is the wrong one.
Make sure caps lock is off and you typed in the correct password without spelling errors (e.g. check keyboard layout).




What do the addresses in the 'new' wallet start with ?
And what do the addresses of your old wallet start with ?
Is it the same ? If so, it seems like it is the wrong seed. If not, you just made a small mistake when importing the seed.




Did you actually try to create a new wallet file (on the mainnet) using your seed ?
Do you remember adding any 'seed extension' to your seed ?

What do you mean with 'crash' ?

If your laptop crashed, but is bootable -> Everything should be fine. Just start electrum and choose the wallet file (and make a backup of your seed (non-digital, e.g. piece of paper)).

If your laptop is NOT bootable anymore -> Do what LoyceV said. STOP USING THE DISK IMMEDIATELY.
Get a live linux distro on a bootable USB and try to recover the lost data (-> Backup your seed!). Preferably first create an image of the disk and try your recovery on the image.
This way you will still have your original drive ready for another image if you somehow corrupted the first image with your tools.


You need either the wallet file and your password OR the seed to restore the private keys holding your coins.


By the way.. how did you manage to create an electrum wallet WITHOUT backing up the seed ?
AFAIK electrum wants you to confirm you have backed up the seed. Why didn't you do that ? This is the most crucial thing to do. The seed IS your money.

Yeah, i also believe this won't work out well. SD cards (or external HD's) aren't very good at guaranteeing a continuous connection.
But without pruning and some rescans, it theoretically should work somewhat good.




SD cards use flash memory (same as USB sticks and SSD's).
So a SD card should be at least as fast as a HDD by default, even cheap ones (but their durability is way lower than from a quality SD card).

Please be more detailed.
If you really want help, first answer my questions:



Simply answer these questions. It will make it a lot easier for us to help you.

Backup your seed and walletfile, then get the latest version (3.2.3: https://electrum.org/#download).
Also, make sure to verify the signature using the downloaded file and the signature file using this command:


You should see this line:

If you see this line, the file is legit. Even if another line says that you are not trusting this signature. This just comes from not adding ThomasV's key to your keyring.