And yes this safe as hardware wallet.
It's not. You don't make your device air-gapped with disconnecting it from the internet, even if keep it offline and never connect to the internet in the future. The only difference is you can’t transfer funds conveniently like the hardware wallet technology. I do this before to my old laptop but it’s hassle for me because I always want to transfer part of my funds so I just purchased a HW that only cost a couple of hundreds for safety and convenience of my asset.
Take note that whether you want to spend the whole balance or part of it, you should make your transaction offline which means that you should create an unsinged transaction on an online device and sign it on an offline device. Otherwise, you would defeat the purpose of the cold storage. |
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If you want your electrum wallet to be completely secure, you should create it on an airgapped device.
This means that you should use a device which has been always offline and will never connect to the internet.
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Username: hosseinimr93
BTC SegWit Address: bc1qujkywfu4hd92vtk5p6hgy922df83jeyc8g3t0p
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Did you read the article you shared yourself? The link you shared has nothing to do with coinbase transactions and what we are talking about here in this thread. That's about how to create an account on coinbase website which is an exchange. |
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Every time miners (or mining pools) mine a block, they add a coinbase transaction in the block.
The coinbase transaction is always the first transaction of the block and it includes the newly generated coins.
You can easily check all coinbase transactions on block explorers and see how they work.
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I actually changed my mind about sending it, would going to Send tab and right clicking on Unpaid and delete suffice if I don't want to progress i.e. cancel it?
If your transaction has not been broadcasted, there's nothing to cancel at all and you can make a new transaction with the same input(s) whenever you want. If your transaction was broadcasted and there are nodes that have your transaction in their mempool, chances are the transaction will be confirmed in the future. |
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But according to what you quoted, it only just means that Electrum version 2.0, that you can only sweep and will not be able to import the private key. In higher versions, you can import the private key. Since I know Electrum in 2020, I can import private key.
It says that you can't import a private key into a wallet that has a seed. In versions older than 2.0, you could generate a HD wallet with a seed phrase and import a private key into that existing HD wallet. Since the imported private key was not backed up by the seed phrase and that could make people lose their fund, that feature has been removed since the version 2.0 |
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Yeah it’s satoshis address and people basically send money there for fun. Most likely it Will be lost forever. Sure it’s possible to spend but it’s highly unlikely that satoshi will ever surface or spend those coins.
Even if Satoshi owns the private key of that address, the 50 BTC premined in genesis block is still unspendable. It may worth mentioning that satoshi would be able to spend other coins that have been sent to that address if he owns the private key. More information on bitcoin wiki: The first 50 BTC block reward went to address 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa, though this reward can't be spent due to a quirk in the way that the genesis block is expressed in the code. It is not known if this was done intentionally or accidentally. It is believed that other outputs sent to this address are spendable, but it is unknown if Satoshi Nakamoto has the private key for this particular address, if one existed at all. |
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The most activity points that a member can earn per activity period is 14
This is not accurate. It's possible that a user can earn more than 14 activity in a single two week actvity period. Assume that a user has made one post in activity period 1 and one post in activity period 2. Now the user has 2 posts and 2 activity. Now, the user can make 40 posts in activity period 3 and earn 40 activity. |
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This is like quiz number 1 and we again use the formula mentioned on page 7 of bitcoin whitepaper. This time, q would be 300/(300+564.9) = 0.3469 The following chart shows how the probability of the transaction being removed from the blockchain decreases with more confirmations.  confirmations probability
0 100
1 72.43575878
2 57.97100299
3 47.38109469
4 39.11081073
5 32.47345203
6 27.06746477
7 22.62412667
8 18.9496105
9 15.89762035
10 13.35446183
11 11.23001478
12 9.451846572
13 7.961150496
14 6.709821413
15 5.658280815
16 4.773818575
17 4.029304111
18 3.402169509
19 2.873597716
20 2.427868307
21 2.05182626
22 1.734447962
23 1.466484873
24 1.240169733
25 1.048973513
26 0.887403752
27 0.750836835
28 0.635378198
29 0.537745613
30 0.455171586 If my transaction receives 26 confirmations, the dishonest miner would have less than 1% chance to remove my transaction from the blockchain and I can be 99% certain that my transaction will surely remain in the blockchain. |
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As already said by others, the fee is too low and that's why you couldn't broadcast the transaction. Make a new transaction with higher fee. You cannot get a transaction ID for a transaction that hasn’t be broadcasted.
Wrong. The transaction ID is the hash of the transaction data. You don't have to broadcast the transaction for getting the transaction ID. |
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When you add a coin or uxto to coin control does electrum remember that next session or you need to re add and reference dust attack coins each time?
The coin control is automatically reset if you close and reopen your wallet. But, the frozen coins remains frozen even if you close and reopen your wallet. It may worth mentioning that there's also a "Fully Spend" option in right click menu which may be helpful to you. So can anyone explain why if you have 40 uxto each having more than the single spend amount. Why electrum wants to use 40 inputs?
With using all those 40 UTXOs, they are all consolidated and that can make your next transactions cheaper. That's very useful, if the transaction including those 40 UTXOs can be made with low fee rate. Due to privacy reasons, electrum doesn't do so by default, if your UTXOs are associated with different addresses. |
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Mining fees are not refunded because when you are cancelling your transaction you must have a higher fees to make sure that your it will be added in the next block.
The replacement transaction which is made for cancelling the original transaction doesn't have to be included in the next block. As already said, you can replace your transaction with a one and wait until it's confirmed. Immediately you send your transaction,It has validated your Bitcoin withdrawal on the block chain,and so when you cancel it, that process can't be reversed on the Blockchain, remember Blockchain can't be altered .
Again wrong. An unconfirmed transaction doesn't exist in the blockchain at all. If a transaction is in the blockchain, it has been confirmed and it can no longer replaced. |
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This opened without an error, but there was nothing in the wallet.
Do you see any transaction in history tab? If there are transactions there and the balance is zero, your wallet may have been compromised. If your wallet is synced (the circle located at bottom right corner of the window is green) and you don't see any transaction, you have opened a wrong wallet. |
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I'm using the latest version and installed it on my desktop, memorized my seed phrase, set my password and moved some coins into my wallet.
Are you sure you will remember your seed phrase forever? You should never rely on memory. Keep your seed phrase somewhere safe. (It's recommended to have multiple copies of your seed phrase in different locations.) Why is this? If my computer gets stolen all anyone needs to do is crack my password and they get my coins. I want to remove any trace that Electrum was ever on my computer. Can somebody tell me how to do this please?
As stated by above by Zaguru12, you should delete the wallet file. Visit the link below to see the default location of electrum wallet files. Where is the Electrum datadir located?It may worth mentioning that files may be still recoverable after they are deleted. |
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It id because your transaction is still on the mempool unconfirmed.
You didn't understand OP correctly. OP cancelled the unconfirmed transaction and that means that he replaced the unconfirmed transaction with a new one paying higher fee. OP paid the fee for the replacement transaction. If RBF is not enabled then I think CPFP should be the other ways get it confirmed.
You can't do CPFP, if you don't have control over any of outputs. |
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