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1

Bitcoin / Electrum / Stupid newbie question, but can I make copies of my wallet?

on: March 02, 2024, 09:38:14 PM

I'm in the process of creating a new wallet and I'm still deciding on how to proceed this time around. I was thinking on getting a sole 2fa wallet or standard wallet instead of getting a multi-sig again. But hypothetically would I be able to just have one wallet and make multiple copies of it and then put it on cold storage? I would only use the wallet in the event of moving my crypto back to the exchange to sell it.

2

Bitcoin / Electrum / Re: I might've messed up on my Multi-Sig Wallet. HELPPP!

on: March 02, 2024, 06:26:44 PM

Quote from: nc50lc on February 25, 2024, 06:17:40 AM Quote from: purepwn8830 on February 25, 2024, 12:08:40 AM bad-txns-inputs-missingorspent You might have a local transaction in your wallet that this transaction builds on top. You need to either broadcast or remove the local tx." I'm really concerned? because as far as I'm aware my BTC is still confirmed on my main multi-sig wallet . On the wallet that I recently restored via your advice(laptop). I'm currently shown the original BTC transaction, but with a local transaction that is adding almost the same amount of BTC to that wallet but the inputs for the address are unknown, which shouldn't be possible?! First thing first, the error is caused by spending that local transaction's output as input of the transaction that you've broadcasted. Since the network isn't aware of it, it will cause that "bad-txns-inputs-missingorspent" for spending a missing input. Don't know how you got an inbound local transaction but it's mostly caused by having an unconfirmed transaction dropped from the selected server's mempool or for outbound txns; created a transaction but didn't broadcasted it and used "Add to History" instead. "Address Unknown" are just scripts that Electrum can't decode, you can try to tick "download missing data" in the setting icon on the top-right side of it to see if it'll update. If not, it's impossible to tell without the actual raw transaction. In any case, backup it first by opening the transaction (double-click) and using "Share->Save to file" menu; (in case you need to restore it) so that you can safely remove it from your history via "Right-click->Remove" so it wont be used in your transaction. Alternatively, you can enable the coins tab via "Show->Coins", then go to that tab and freeze that specific output through "Right-click->Freeze->freeze Coin". Thank you so much for your help! if I could I would kiss you! Removing the local transactions has fixed the problem and now I've transferred all of my BTC out of my electrum wallet.

3

Bitcoin / Electrum / Re: I might've messed up on my Multi-Sig Wallet. HELPPP!

on: February 25, 2024, 12:08:40 AM

Quote from: nc50lc on February 11, 2024, 05:55:09 AM Quote from: purepwn8830 on February 10, 2024, 09:46:49 PM Quote from: nc50lc on November 04, 2023, 03:46:47 AM -snip- Heyo sorry for the long reply, The first keypool of the 2fa wallet matched the third keypool in the Multi-Sig wallet. This is good since all you have to do is to get the master private key from the console (View->Show console) using the command: getmasterprivate() Then create a new MultiSig wallet (2nd Cosigner) using that master private key, set the other two keypool of the MultiSig wallet (1st and 2nd) as the wallet's cosigners. Just make sure to use the same "required signatures - of - number of cosigners" as shown in the name of your current MultiSig wallet. (e.g.: My_Wallet_Name [2of3]) Then select the option "Use a master key" instead of the seed phrase. If the setting is [3-of-3], you'll have to create another cosigner using the other 2fa wallet's master private key as the third cosigner, otherwise if it's [2-of-3], you can fully sign your transactions with those two cosigners. P.S.: That was quite long, I have to re-read the whole topic to make this reply Ok so I ended up doing a Test to send my BTC to my exchange wallet. I ended up sending only 10 dollars CAD worth, and the transaction ended up completing, which is "8547a96e35a3b2d29eeb08c621ce649c77bdbc0b7c133d5d91fcccb68b07a865". So I figured I'd be good to send another transfer of BTC. I'm able to cosign on both wallets now I'm getting an error when attempting to broadcast the local transaction: "The server returned an error when broadcasting the transaction. Consider trying to connect to a different server, or updating Electrum. bad-txns-inputs-missingorspent You might have a local transaction in your wallet that this transaction builds on top. You need to either broadcast or remove the local tx." I'm really concerned? because as far as I'm aware my BTC is still confirmed on my main multi-sig wallet . On the wallet that I recently restored via your advice(laptop). I'm currently shown the original BTC transaction, but with a local transaction that is adding almost the same amount of BTC to that wallet but the inputs for the address are unknown, which shouldn't be possible?! Did I get hacked somehow?

4

Bitcoin / Electrum / Re: I might've messed up on my Multi-Sig Wallet. HELPPP!

on: February 10, 2024, 09:46:49 PM

Quote from: nc50lc on November 04, 2023, 03:46:47 AM Quote from: purepwn8830 on November 03, 2023, 04:34:06 PM Ok I found that the public key for the 3rd keystore on the multi-sig wallet matches the one on my 2fa laptop wallet. Good, if it's 2-of-3 you may already have the required keystore to spend, given that the MultiSig wallet itself has one. (if it doesn't say "watching only", it has one) So, which keypool of the 2FA wallet matched with the third keypool of the MultiSig wallet? If it's the first, you only need to use the command `getmasterprivate()` to get the master private key which you can use to restore another cosigner. The options should be: "Multi-signature wallet -> n-of-m (same setting) -> Use a master key -> Add Cosigner 1 (paste your 2fa wallet's master private key)" In Cosigners 2 and 3, paste the other two master public keys, that would be the MultiSig wallet's 'keystore 1' and 'keystore 2'. If it's the second, you need to restore the 2fa wallet's seed and disable 2fa when prompted, then do not set a password so that the wallet file will be human-readable. The go to Electrum's wallet directory (location) and open that newly created wallet as "text". Find the keystore 2 which is under `"x2/": {`, its master private key should be closely below it, then restore using the same instructions above. If it's the third, I'm afraid that it's TrustedCoin's master key which is Electrum's 2FA service provider. Heyo sorry for the long reply, The first keypool of the 2fa wallet matched the third keypool in the Multi-Sig wallet.

5

Bitcoin / Electrum / Re: I might've messed up on my Multi-Sig Wallet. HELPPP!

on: November 03, 2023, 04:34:06 PM

Quote from: nc50lc on November 02, 2023, 06:39:28 AM Quote from: purepwn8830 How do I find the Public Key of my cosigners ? Also is there any way to change the wallet used for cosigning? Open your MultiSig wallet and click the menu: "Wallet->Information" The "master public keys" are viewable in "keystore n", there'll be multiple keystores (clickable) depending on your MultiSig setup. Ok I found that the public key for the 3rd keystore on the multi-sig wallet matches the one on my 2fa laptop wallet. I'm still figuring out how to get the 3rd wallet from my old phone on android.

6

Bitcoin / Electrum / Re: I might've messed up on my Multi-Sig Wallet. HELPPP!

on: November 03, 2023, 01:10:07 PM

Quote from: hosseinimr93 on November 01, 2023, 04:54:07 PM I am not sure I am understating you correctly. You created a multi-signature wallet using electrum in 2021 with 3 co-signers. You are saying 2 out of the 3 seed phrases used for creating the multi-signature wallet was 2FA seeds. Am I getting you correctly? If so, that's not possible at all. Electrum 2FA wallet itself is 2 of 3 multi-signature wallet and you can't use its seed phrase as a cosigner seed when creating a multi-signature wallet. Can you please elaborate more on how you created your wallet? How did you generate your keys? I believe I ended up using the master private key when assigning the cosigners instead of the seeds. Quote from: nc50lc on November 02, 2023, 06:39:28 AM Quote from: purepwn8830 How do I find the Public Key of my cosigners ? Also is there any way to change the wallet used for cosigning? Open your MultiSig wallet and click the menu: "Wallet->Information" The "master public keys" are viewable in "keystore n", there'll be multiple keystores (clickable) depending on your MultiSig setup. No, it's not possible to change cosigners, your addresses are all made from those keystores. Creating a new wallet with a different keystore will produce a different wallet with entirely different addresses. Quote from: purepwn8830 I've been attempting to find the seed phrase for my 2fa laptop wallet but it's grayed out and I'm unable to select it in the menu unlike the multi-sig wallet. It's normal for 2FA wallet for security purposes since the 2fa seed has two cosigner master keys. If a hacker can get access to your wallet and able to get the seed, the 2fa device will be useless because he can already spend using those two cosigner keys. Quote from: purepwn8830 on November 01, 2023, 04:22:54 PM Turns out 2 /3 of the cosigning accounts used were both 2fa instead of being a multi-signature wallet. Let's confirm if it's really the case: Take note of the three keystores of your MultiSig wallet in 'Wallet->Information'. Open your alleged 2fa wallet cosigner and open its wallet information and check if one of its keystore matches any of the keystore of your MultiSig setup. Open the other 2fa wallet if it has a matching master public key as well. If it's the case, your chance to recover is based on which keystore you've used because one of them is from the 2FA service provider. Also if you have the seed phrases or passwords of those 2fa wallet. Ok I will try this now thanks and I'll let you know of my findings. [moderator's note: consecutive posts merged]

7

Bitcoin / Electrum / I might've messed up on my Multi-Sig Wallet. HELPPP!

on: November 01, 2023, 04:22:54 PM

Hey guys I'm pretty new here but I created an electrum wallet for my BTC back in 2021 that was a multi-signature. I tried to migrate the BTC back to my account via cosigning but nothing ended up happening, I've tried using both the cosigning plugin and also loading the partially signed transaction and opening it on my laptop wallet. Turns out 2 /3 of the cosigning accounts used were both 2fa instead of being a multi-signature wallet. I have access to all of the wallets via passwords and seeds but I've been having a lot of trouble trying to restore my wallet with the multi-sig wallet that has BTC on it. Everytime I attempt to recover the wallet with the seed phrase + extended custom words, it just loads an empty wallet with no BTC. I've been attempting to find the seed phrase for my 2fa laptop wallet but it's grayed out and I'm unable to select it in the menu unlike the multi-sig wallet. How do I find the Public Key of my cosigners ? Also is there any way to change the wallet used for cosigning?

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