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1781  Bitcoin / Wallet software / Re: How safe are offline wallets? on: November 30, 2022, 07:21:37 PM
What happens if the HDD goes bad, though? Backing up the seed phrase enough to recover it from another computer, I guess.
Right. All your private keys can be derived from your seed phrase and that's all you need for recovering your wallet.


So, if I understand correctly, backing up the seed phrase on paper, for example, and setting the wallet to watch-only removes the ability to send funds and practically secures your wallet. Thus, in case I want to send Bitcoin to someone, I have to recover my wallet using the seed phrase. Am I correct?
For spending bitcoin from your wallet, you should create an unsigned transaction on your watch-only wallet, sign it on the offline device and broadcast it using your online device.
In this way, you can make transaction without your seed phrase connecting to the internet.
1782  Other / Meta / Re: What happen when two person report the same post on: November 30, 2022, 06:41:28 PM
So if its good everybody that has reported it gets a good report and so is it the same with a bad one or unhandled report !
All reports that are made for a post won't necessarily have the same status.
If a report is marked as bad, that doesn't mean all other reports are bad too. Moderators should handle other reports manually. It's possible that there's a good report among them.
1783  Other / Meta / Re: What happen when two person report the same post on: November 30, 2022, 04:40:10 PM
Your report status will depend on moderator's action.
If the post is deleted, all the reports made for that post are marked as good. Otherwise, the moderators should handle all the reports one by one.

For more information, read the post made by halab before.
1784  Bitcoin / Bitcoin Technical Support / Re: Wallet.dat Inquiry on: November 30, 2022, 03:39:15 PM
You can easily export all your receiving addresses from your wallet and check their balance on a block explorer.
To do so, open your wallet, click on "Window" button at top of the window and select "Receiving addresses".

You can also go to "console" and use the following command.

Code:
listreceivedbyaddress 0 true

Note that if you have ever made any transaction from the wallet, it's possible that your fund is on your change addresses.
1785  Bitcoin / Development & Technical Discussion / Re: Randomly picking 24 words from the BIP39 wordlist on: November 30, 2022, 03:22:21 PM
I was just curious on behalf of those that don't trust wallet software and wanted to be hardcore about it.
If a wallet or the tool you use for generating the seed phrase is open-source and the code has been reviewed, there's nothing to worry about.
If you still want to generate the seed phrase yourself for any reason, it would better to generate a random number and convert that to a seed phrase instead of directly going the word list.
1786  Other / Beginners & Help / Re: Bitcoin for beginners: Five tips you should know as a beginner on: November 30, 2022, 08:01:57 AM
The hot wallet example that you choose is just not good since they are all custodial wallet which doesn’t have privacy or full control to the wallet.
Note that there are two coinbase wallets. One of them is custodial and the other one is non-custodial.
Of course, even the non-custodial coinbase wallet should be avoided. Because it's close source and we don't know how the keys are generated and whether they have the access to the keys or not.

To OP:
I recommend you to avoid any close-source wallet.
As already suggested above, for your bitcoin, you can use electrum. It's open-source and gives you full access to your fund.
1787  Other / Beginners & Help / Re: My gut is telling me that I am missing a part here on: November 30, 2022, 07:22:27 AM
But they provide P2P, is it ok to say P2P is decentralized?
No. In a DEX, you should be able to trade without relying on any third party and without KYC while in binance P2P exchange, binance acts a third party and you have to verify your identity.
Binance P2P may have some advantages like giving you more payment method options, but as said it's not decentralized.
1788  Bitcoin / Bitcoin Technical Support / Re: 12 and 24 seed-phrases on: November 30, 2022, 06:54:24 AM
I think that 25 phrase is more reliable and has more security
A seed phrase can't include 25 words. The number of words should be 12, 15, 18, 21 or 24 and as already said in the previous posts, a 12 word seed phrase is secure enough.
By a 25 word seed phrase, you may mean a 24 word seed phrase which has been extended by an additional word or characters. If that's the case, note that the 25th word isn't a part of the seed phrase. That's called passphrase.
1789  Bitcoin / Wallet software / Re: No balance in mycelium and electrum on: November 29, 2022, 04:15:34 PM
As far as I know, restoring wallets or generating addresses from individual private keys is not doable in the case of Mycelium wallet.
Mycelium allow you to create a wallet using a single private key.
To do so, you should tap on "Add account" button at top of the screen and then "Advanced & more" button under "Single address account".
With mycelium, you can even generate a individual  private key.
1790  Other / Beginners & Help / Re: Bringing it back to your ears: Not your keys, not your coins on: November 29, 2022, 02:44:26 PM
2. Don’t paste your passphrase on any exchange, I know very soon other exchanges will follow the same pattern which will result in the stealing of funds.
You probably mean seed phrase, not passphrase.
Seed phrase (also called recovery phrase or mnemonic seed) is different from passphrase. Seed phrase is a series of words, usually 12 or 24 words. Passphrase is the additional word(s) or characters which is added to the seed phrase for more security.  
1791  Bitcoin / Bitcoin Technical Support / Re: Can Someone help me to know where is my BTC plz? I have txid + wallet on: November 29, 2022, 02:33:16 PM
i though it would be electrum but when i checked it's 0 and cant' find my funds  and there is normally 0.44 btc it's a lot for me
As mentioned by OmegaStarScream above, the address in question belongs to binance.
Note that when you deposit fund into an exchange, they move the fund to their hot wallet. That's normal and that's why the address is now empty.
Also, the address hasn't received all the 0.44 BTC you are talking about recently. It has received 0.41 BTC of that 0.44 BTC around 1 year and half ago.
1792  Other / Meta / Re: Posting about metaverse project? on: November 28, 2022, 08:11:58 PM
It is likely that you are still in the development phase, so you can publish the topic in detail in the "Project and Development" section before thinking about publishing the official announcement.
I don't think "Project Development" board is suitable for altcoins/tokens announcements, even if the project is in development phase.  As you can see in the homepage of the forum, "Project Development" is under "Bitcoin" section and I think you should post bitcoin related topics there.
OP should make his/her topic in "Alternate cryptocurrencies" section.

From Guidelines for threads:

Project Development - Organization of Bitcoin and related projects (sites, software not yet developed/in development), bounty campaigns, advertising etc. No hiring here although "looking for partners" threads should be here.
1793  Bitcoin / Bitcoin Technical Support / Re: What happens if the hashrate drops by 50% at once? on: November 28, 2022, 07:35:05 PM
Thanks for your answers, I understand that it is really unlikely that this will happen but wouldn't there be a way to improve BTC's algorithm to consider a large and fast variation of its hashrate (maybe with an average time of the last 50 blocks or any suitable system), some kind of security system to prepare BTC to fight against any eventuality.
Note that with decreasing the difficulty adjustment period that much, we would decrease the accuracy of our estimation. To get a good average, we need enough samples.
Till now, difficulty adjustment algorithm has worked well and I don't think there is any need to change the difficulty adjustment period.
1794  Other / Meta / Re: Posting about metaverse project? on: November 28, 2022, 01:35:51 PM
I don't have any information about metaverse, but whatever your project is, you are probably launching a token/coin.
If it's a coin, post your topic on "Announcements (Altcoins)" and if it's a token, post your topic on its child board, "Tokens (Altcoins)".
1795  Other / Beginners & Help / Re: Mining difficulty explained on: November 28, 2022, 09:47:38 AM
Bitcoin mining difficulty is  an expression of how many hashes a miner needs to produce a cryptographic string, these strings then earn the right to add the next block transactions to the chain.    
This is not true. Bitcoin difficulty determines how difficult it is to mine a block. But there is no way to know how many hashes a single miner should generate to solve a block.
It's possible that a miner with the hash power of only 1 MH/s can find a block.

This readjustment depends on how many miners are operating in the network and their combined hash rate in the mining network. This ensures the steady discovery of blocks.
It doesn't matter how many miners are trying to solve the blocks. There is no way to know that at all.
1796  Bitcoin / Wallet software / Re: How safe are offline wallets? on: November 27, 2022, 07:40:43 PM
I don't feel quite safe or comfortable practically having my bitcoin stored on my computer.
Your bitcoin isn't stored on your computer.  Your bitcoin is on the blockchain and the keys you need to access your bitcoin are on your computer.


How safe is a wallet like Electrum?
Electrum is an open-source wallet and there isn't anything hidden from the users. If it's used in the correct way, it's completely secure.


If we suppose that my computer is infected with malware (or a Trojan horse, you name it), can someone access my wallet and send funds to another address?
Yes. That's possible. Your safety depends on how you use electrum. There's always the possibility that your computer gets comprised.


Using a separate computer or hard drive for my wallet? The best option, I guess, is a hardware wallet.
If you want to be 100% secure, you should use electrum on an air-gapped device.
1797  Bitcoin / Development & Technical Discussion / Re: Randomly picking 24 words from the BIP39 wordlist on: November 27, 2022, 03:22:37 PM
If you pick 24 words randomly, the probability of having a seed phrase which passes the checksum would be 1 in 256. For the last word, 8 out of the 2048 words would produce a valid seed phrase.

I know the last word is a checksum generated from the first 23 words,
The checksum isn't the last word. In a 24 word BIP39 seed phrase, the last 8 bits are the checksum. The first 3 bits of the last word are chosen randomly.
1798  Bitcoin / Electrum / Re: Is bip32 safe with electrum? on: November 27, 2022, 03:17:15 PM
It is safe, but these are the remaining standard deviation paths:
The common derivation path which is usually used is m/x'/0'/0' not m/x'/0'/0'/0/0.
For example, m/44'/0'/0' is derivation path used for deriving legacy addresses and refers to the whole wallet while m/44'/0'/0'/0/0 refers to the first legacy receiving address and m/44'/0'/0'/1/0 refers to the first legacy change address.
1799  Economy / Gambling / Re: FreeBitco.in-$200 FreeBTC⭐Win Lambo🔥0.2BTC DailyJackpot🏆$32,500 Wager Contest on: November 27, 2022, 01:46:00 PM
I also don't understand how the FreeBitcoin lottery system works and picks winners,
The winners are determined through a provably fair lottery.
Every week, they publish a list containing user IDs of participants and their ticket numbers. Winning ticket numbers are determined through some mathematical calculations.
The provably fair lottery guarantees that the tickets numbers are picked randomly and there is no way for them to cheat the users.
For details on how the provably fair lottery works, go to "Lottery" tab and click on "the lottery is provably fair.".
1800  Bitcoin / Development & Technical Discussion / Re: private key - quick balance check for several addresses / coins on: November 27, 2022, 09:52:26 AM
Aha, now I understand. So this would only work with Bitcoin Gold and Bitcoin SV, right?
A bitcoin private key should work for all bitcoin forks as well.
The most popular forked coin is bitcoin cash (BCH). The bitcoin cash fork happened on August, 1, 2017. Any bitcoin transaction made before that date exists in the bitcoin cash blockchain as well.
So, if a bitcoin address has received fund before that date, it has received bitcoin cash as well.
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