Passphrase is a combination of characters or words added to your seed phrase for extra security. If you extend your seed phrase with a passphrase, you will get completely different addresses and you will need that whenever you want to recover your wallet from seed phrase.
The passphrase is also called "13th word" or "custom words".

According to 2-b in your reply, it seems that you had no passphrase.

Take note the the seed phrase is not generated by selecting words. For a generating a seed phrase, a random entropy is generated and that's encoded to a series of words.

If the seed phrase has been generated in the correct way, there's nothing to worry about.
The chance of a word repeating 3 or 4 times is very very low and even if that happens, there's nothing to worry about in the case the seed phrase has been generated completely randomly.

What do you mean by "two seed formats"? Are you talking about the script type?

In the case the seed phrase has been generated by electrum itself, its type is recognized by electrum once you enter it.
It's not possible to generate a legacy wallet from a segwit seed phrase or vice versa.

If the seed phrase has not been generated by electrum and that's BIP39, there would be three script types, not two.

Yes, that's possible.
(In theory) It's even possible that you generate a 24 word seed phrase and a single word is repeated 24 times.

The probability of a single word is repeated n times decreases exponentially with increase in n and that's why it's unlikely that you generate a seed phrase in which a single word is repeated 3 times, but as I said that's possible.


This post has been edited. Thanks LoyceV for the correction.

Whenever you generate a BIP39 seed phrase, you actually generate a random number and your seed phrase represents that random number.

For example, if you generate a 24 word BIP39 seed phrase, the random number can be any number between 0 and 2²⁵⁶-1. This means that any of the words can be repeated multiple times.


This is completely wrong.

FbnGbz, people here are trying to help you.
Your posts have been already reported for plagiarism and there's a big possibility that they will be removed by moderators soon and you will be banned.
According to the new post you made on reddit, it's clear that you have not plagiarized anything and the posts on reddit have been made by you.


I recommend you to edit the topics you made on this forum. Add something like "I have already posted this on reddit  and I have not plagiarized .............." so that moderators are aware of that whenever they handle the reports.

We can't see the topic creation time, but we can sort the topics into their creation time order.

To do so, just add ";sort=first_post" at the end if the URL.
To sort topic into descending order, add "first_post;desc" at the end of URL.

For example, you can sort the topics posted in Meta into their creation time using the following URLs.

Ascending order: https://bitcointalk.org/index.php?board=24.0;sort=first_post
Descending order: https://bitcointalk.org/index.php?board=24.0;sort=first_post;desc

I hope this helps you.


These URLs don't sort the topics into their creation time, but into their last post time.

It may worth mentioning that there are no addresses in the protocol level.
Bitcoin addresses are used for sending and receiving fund easier. Coins are always locked using scripts.


0.3 BTC minus transaction fee.


The more inputs/outputs your transaction contains, the bigger size of data you have to broadcast and the more fee you have to pay miners to include your transaction in the blockchain.

I don't think OP is going to invest in (scam) cloud mining services. He/she referred to ViaBTC which is a mining pool and has probably purchased a mining machine. (Click here to read the post.)

Edit:
According to another topic made by OP, it seems that OP is going to buy an Antminer S19.
Antminer S19 95TH setup

So, you have no idea about possible passphrases.
Unless the passphrase is short and it contains only a few characters, there is no way to brute-force that.

Since you say the password was set by someone else, I doubt that's yours.
Isn't the wallet owned by the person who set the password?

The biggest percentage of tickets that didn't lead to winning the lambo was 10.8%.
In the first round, someone with 644,523 out of 5,954,090 tickets had around 10.8% chance to win the prize, but someone with only 185 tickets and the winning chance of 0.0031% won the prize.

Once a node validates a transaction, the node puts the transaction in its mempool and broadcast it to other nodes. This doesn't mean the transaction will be definitely included in the blockchain.
The transaction will go to the blockchain and will be permanently there, after a miner includes it in a block.

Take note that even a transaction has been been validated by many nodes, there is no guarantee that it will be finally confirmed.

This is an uncompressed private key and as stated by nc50lc, the problem is with how Unisat generates address from an uncompressed private key.

The compressed private key associated with the uncompressed private key you posted is KztQAyo4qogd3wc8ejEaYVeFGYKtiDbVhbT47CMpHGvpk741sBA1.
If you import this private key in electrum, you will get the same address as the one generated by Unisat.

There's another requirement that should be considered by miners when they place transactions in the block.

Since nodes verify transactions in the order they have been placed in the block, if there's a parent and a child and a miner wants to include both of them in the same block, the parent must be placed before the child.

There's nothing you can do. If you have neither the wallet file nor the seed phrase, there is no way to recover the wallet.

It's always recommended to keep multiple copies of your seed phrase in different locations.
For more security, you can consider graving your seed phrase on a stainless steel plate instead of a writing it down on a paper.

A seed phrase (which is called mnemonic phrase as well) is a series of words and can generate the master private key and numerous addresses.


A single private key can generate three types of addresses. A legacy address which starts with 1, a nested segwit address which start with 3 and a native segwit address which starts with bc1.

Electrum isn't like a website/service in which you register an account.
Electrum is an open-source non-custodial wallet. In electrum, you can create a wallet, send and receive bitcoin and have full control over your fund.

In the case, you want to use electrum, download it only from its official website and verify your download.


In a hardware wallet, the keys are kept offline and it can give you a good security.

It may worth mentioning that electrum can be also used offline if you have an airgapped device. Of course, you may not need that, since you have a hardware wallet.


There's nothing stopping you from receiving fund from a mining pool to your hardware wallet.

The transaction hash isn't determined by miners or mining pools.
The transaction Hash (TXID) is obtained by hashing the transaction data through SHA256 function twice.


Nonce is something completely different.


What do you mean by volume of the payment?
If you mean the amount of bitcoin, you are wrong. The transaction fee doesn't depend on the amount you send.
The transaction fee depends on the number of inputs and outputs, addresses type, how much you can wait for your transaction to be confirmed and how congested the network is.


The gas is the term used for some altcoins like ethereum. There is no gas fee in bitcoin.

This is completely wrong.
The transaction fee is set the by the person who makes the transaction. To be more precise, the transaction fee is the the total value of inputs minus the total value of outputs and it's the sender who decides on how much is paid a transaction fee.

Miners usually prioritize transactions based on their fee rate and they are free to even include transactions not paying any fee.
Nodes don't determine the transaction fee and it's not that they force people to pay certain amount of fee for their transactions. The only rule we have is that nodes don't relay transactions paying less than 1 sat/vbyte. Even that rule isn't a consensus rule and as I said miners can even include transactions paying zero fee.  

Cripto(dot)com? Do you mean crypto?
I have never used any of the services you mentioned, but I know both are custodial services.

As mentioned by _act_ above, you should always use non-custodial wallet for keeping your bitcoin.

In a non-custodial wallet, you have access to your private keys and you have full control over your fund.
In a custodial wallet/centralized exchange, your fund in controlled by a third party.