According to ledger's article about restoring ETH:

• Download and run the BIP39 tool (https://github.com/iancoleman/bip39)
• Select 'Ethereum' and BIP32
• Enter the derivation path m/44'/60'/0'/

Your first private key will be the one with the path m/44'/60'/0'/0.
The second private key will be the one with the path m/44'/60'/0'/1, and so on.


But make sure to get the tool from github and run it on an offline machine. You might be compromising your seed if you run the tool on an online pc.
Afterwards you'll just need to import the private keys into a compatible wallet.

The extended private key (xpriv) is specified in BIP 32.
It is not a private key to actively spend your funds, it is used to generate private-/public- keys for you to receive/send BTC.
The xpriv is 111 bytes long, compared to 32 bytes for a 'standard' private key.



Could you please elaborate what exactly you are referring to ?
If you have exported the xpub (extended public key), you can generate 'all future' public keys (and therefore also addresses) of your wallet.
If you want to have a backup, you need to export the xpriv key.

If you have downloaded the MAC-version, it definitely should be compatible.

Did you already try to run it via the terminal ?

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There can be multiple electrum forks installed if you specify different data directories for them (i do believe electrum-ltc does NOT use the same as electrum standardly).

An application usually does not disappear without someone removing it.

You might try to start electrum via the terminal:

If this doesn't work and you can't locate the executable, do what jackg advised and reinstall it.
But this does of course require you to either have the mnemonic seed phrase (12/24 words) OR the wallet file (usually inside /home/USER/.electrum/wallets) and the password (if existing).

If you have deleted the data directory and only copied the backup of the chainstate into it, you did delete your local copy of the blockchain.
You need to keep your blocks (*.blk files) if you aren't running core with pruning.




What i was revering to with 'syncing' was the process of core reading the block files and building the chainstate (which usually takes way more time than the download process).

It is heavily advised to NOT run your PC under the root user on a usual basis.
You are basically bypassing the security model, where programs are meant to be run with user privileges without being to be able to access/modify the underlying system.
Any small bug or vulnerability could crash/compromise your whole system since any process you start (graphical destkop environment, browser, flash, .. ) runs with root privileges.

The better alternative would be to create individual user and move them (if you want them to be able to gain root privileges) into the sudo group.

Everything can be hacked. It is just a matter of time and effort used to attack it.
As long as there vulnerabilities which can be found, there also will be black hats who are trying to find an exploit them.

ATM's (whether crypto or fiat) always has been a lucrative goal. These are basically money storing machines.




Probably yes. I am sure that there are a lot of vulnerabilities in all wallets which just havn't been found yet.

The good thing about hardware wallets is that an attacker would need the device AND a vulnerability + exploit to steal funds.
Thats a big advantage compared to a desktop-/mobile- or web wallet, where a simple malware would be enough to steal your funds.

If you are importing the private keys (those which belong to an address which shows a balance on a block explorer), your balance will appear after the scan.
But note that this is not a long term solution. Imported private keys are harder to handle when backing up etc.

After the scan, if you see your whole balance, create a new wallet and send your funds over there. You will then only have to back up the seed from the latest wallet.

The message structure is:

• 4 byte which define mainnet/testnet
• 12 byte command
• 4 byte length
• 4 byte checksum
• X byte payload

You can read more about the structure / possible values in the protocol documentation (https://en.bitcoin.it/wiki/Protocol_documentation#Common_structures).

Well, if blockchain.com doesn't check after 20 unused addresses you could simply send small amounts to the other addresses,
which have been crated before the address which received the funds.
After you have send funds to enough addresses, so that the address used by your custer will be inside the address gap of 20, it will appear and be accessable.

But, why did you use blockchain.com in the first place ?
For a proper OTC exchange, you should be able to implement everything yourself. For your and your customers security.

Were you already able to move any funds out?
Or did the person you have dealt with only import addresses as watch-only ?

If you can access any funds, move them out ASAP. Get a new wallet (preferably a desktop wallet instead of a web wallet) and NEVER share any private information.

Remember, to receive bitcoins you need to provide your public address. This should be the ONLY way for you to receive bitcoins.
If someone claims he needs access to any account of you to 'load up' some btc, they are lying and try to scam you.

Create a wallet yourself and provide the other party your btc address. Do only accept btcs SENT to this address.

Every thing has been in beta once. The LN is still in development stage. Did you expect the LN would be built within a few weeks ?




This is right. The bitcoin blockchain is the most secured one.
Not a single attack on bitcoin could really damage its network.
And since it has the most hashrate (and the most 'work' being used to mine) it is the crypto which needs the highest 'investment' to get attacked.




Everything is possible.
But both pools would effectively go bankrupt if they would decide to perform 51% attacks.
They would be left with worthless hardware and coins without any value anymore.

These pools actually are the most ambicious one letting bitcoin NOT get attacked. Thats how they make their money.

I was under the impression that most wallets were for 'testnet only'. And that you could configure them to run on mainnet, but it was recommended not to do so.
It may have been like that a few months ago. But unfortunately i don't remember, i could also be wrong.

That's 6 sat/B. 10 would have been needed for an instant confirmation today. Can be seen here.




The lightning network still is in beta.
And most of the wallets available currently do only work with the testnet (except if you make changes to the configuration, then it is possible to use them on the main net).
So if you didn't explicitly configure them to work on the mainnet, they were configured for the testnet.




No. Thats not how it works.
At least use 3 minutes of your precious time to check the link i have posted (to have at least a bit of knowledge regarding LN):

This probably happened because you have picked a fee which was too low.
Usually 1 sat/B transactions get confirmed pretty fast, but the mempool started growing a bit today. This happens in cycles.
You can check the current status here: jochen-hoenicke.de/queue/#1,8h.

How high was your transaction fee ?
If you really need it to be confirmed as fast as possible, you might bump the fee (assuming you have the RBF-tag set; depends on the wallet you are using).




Bitcoin is the most proven and secured payment system around.
Each other crypto is either a clone or some untested system which massive vulnerabilities.




The LN is completely different from master nodes. You seem to have a misunderstanding of the LN.
If you want to get a deep understanding you might read want this article (part1 , part2).

If you instead don't want to spend 15 minutes of your life, you might look at the wikipedia article instead.

Both sources should make it clear that the LN in not similar to the concept of master nodes.

This is just some low-quality content. Nothing new here. Articles from that point of view are being distributed since 2017.
I agree with DooMAD on this point, there hasn't been any comparison between multiple financial systems. Nothing scientific relevant.


Particularly this made me laugh:

Now the developer aren't just responsible for writing the code and developing the software, but they have to either (1) choose a fast algorithm or (2) build ASICS for their algorithms  
The whole article is full of rash statements without any substance.

That's never a good idea 

Did you check whether you received the email to confirm your address ?
Since you didn't even verify your email it may be possible that you have misstyped your address when registering ?
Or is the resetting email the only one not showing up in your mailbox?

Usually you should be able to gain access to your account. You will just have to wait for the support to answer your ticket. And you will prove that you own this account.

Bitcoin does not have a 'private blockchain'.
There is just one (valid) public blockchain. It contains all transactions ever made on the network.

There is a concept of private blockchains where a permissioned network is set up. This places restrictions on who is allowed to participate in the network.
However, this is not the case with bitcoin and it is not really useful. A blockchain is a distributed database which does not require any trust.

In a permissioned network there is an authority which controls the rules whether someone is allowed to join the network. It is not a trustless nor decentralized solution.

This is definitely not normal. It might be a network issue. Did you check your firewall ? Does your FW forward packets sent to the corresponding ports?

According to their Github (https://github.com/bitcoinj/bitcoinj/blob/master/.github/CONTRIBUTING.md#contributing-guidelines) they prefer to get contacted via their Google group or bitcoin stackexchange.


You will get further guidance there.

Do you have any source or any statistic which backs your claim ?

I don't know what you are thinking about when reading the word adoption. But this is a slow process.
More and more merchants are starting to accept bitcoin. The number of BTC user in countries with a broken financial system is rising too.

If you look at the number of open channels on the lightning network you will see that there is a big community which already starts to use the LN on the mainnet even though it is still in beta.
Once the LN is ready and running, there won't be any factors holding mass adoption back anymore.