Possible method for cold wallet spend with bitcoin core.

[alexeyneu]

Code:

bitcoin-cli createrawtransaction '[{"txid": "input_txid", "vout": "vout"}]' '{"address": amount}'

Code:

bitcoin-cli signrawtransactionwithwallet "your_raw_transaction"

but you don't have private key needed for latter in your wallet hehe

[1714294677]

1714294677

[1714294677]

1714294677

[1714294677]

1714294677

[1714294677]

1714294677

[1714294677]

1714294677

[BlackHatCoiner]

forgive me. i am struggling with this stuff as well.

Feel free to make any question you want. There are no stupid questions.

could someone just install btc core on an airgapped device. launch core. create a new wallet. create a "receive address" and the from an exchange or other hot wallet send btc to that  receive address?

Well, yes, but my question is why would you want to do that? Bitcoin Core is not newbie friendly, and does not support a seed phrase standard like BIP39 (which helps a lot for backups). Instead, I would follow this little guide and install Tails which come with Electrum pre-installed.

would this not be a cold wallet? then that person could make back up copies of the wallet.dat file for redundancy/protection?

It would be a cold storage, but you should not rely on digital back ups, as disk corruption is a common phenomenon. Instead, you should be able to back up your bitcoin in paper, human-readable. That's a seed phrase.

[Pmalek]

If I were you, I'd buy myself an airgapped device instead of a hardware wallet. Either Foundation Passport or SeedSigner. It is an opportunity to educate yourself about the Bitcoin space as well.

I would add the Blockstream Jade to that group. It can be used as a normal hardware wallet (not-airgapped) or as a stateless signer, as it uses SeedQRs just like the Seedsigner. The one thing that is questionable is that it requires Bluetooth or USB connection with the Blockstream Green software wallet during the initial setup to download the firmware. After that, everything can be done with QR code scanning. The official shop is in the US, but they have a bunch of resellers all over the place.

[fasttimes]

Feel free to make any question you want. There are no stupid questions.

thank you. i genuinely appreciate that.

Well, yes, but my question is why would you want to do that? Bitcoin Core is not newbie friendly, and does not support a seed phrase standard like BIP39 (which helps a lot for backups). Instead, I would follow this little guide and install Tails which come with Electrum pre-installed.

trying to get a streamline, airgapped process using btc core only if possible and no manufactured hardware wallets (don't trust them). for some reason i am weary about having to use other apps or programs in the process. that is either due to a lack of understanding or paranoia.

also, isn't electrum quite difficult/not newb friendly? i have started looking into seedsigner but again it seems like i need an electrum server set up and sparrow wallet. two additional programs to keep all this together. but i don't know what i don't know.

thank you for the links i will check them out.

would this not be a cold wallet? then that person could make back up copies of the wallet.dat file for redundancy/protection?

It would be a cold storage, but you should not rely on digital back ups, as disk corruption is a common phenomenon. Instead, you should be able to back up your bitcoin in paper, human-readable. That's a seed phrase.
[/quote]

and getting a paper back up of a btc core HD wallet is difficult/cumbersome?

[Pmalek]

for some reason i am weary about having to use other apps or programs in the process. that is either due to a lack of understanding or paranoia.

But if that is the reason, why aren't you worried about using Bitcoin Core? It's open-source, like many other software, but it means very little to you personally if you have no understanding of how it works under the hood. I don't see why you would be paranoid about Electrum and at the same time not be paranoid about Bitcoin Core.

also, isn't electrum quite difficult/not newb friendly?

It's more user-friendly than Bitcoin Core. It's a light client with a native seed format, but also supports BIP39 seeds. It's not hard to learn the basics.

and getting a paper back up of a btc core HD wallet is difficult/cumbersome?

You would be backing up a long string of letters and numbers that make no sense to the human brain. It's not user-friendly, and it's easier to make a mistake with a random character than it is when backing up a set of 12 or 24 English words. Don't forget, there are no seeds in Bitcoin Core.

[BlackHatCoiner]

also, isn't electrum quite difficult/not newb friendly?

No, and according to my little guide, it's even easier. Once Tails start, all you need to do is connect to a Tor circuit, open Electrum, create a wallet, backup the seed phrase, and it will connect to random Electrum server via Tor automatically.

i have started looking into seedsigner but again it seems like i need an electrum server set up and sparrow wallet.

SeedSigner is more comfortable than an airgapped computer once you learn the basics, but it'll take a few hours until you set it up and experiment with Sparrow to see how it works. You don't need to run your own node, even though it's always recommended for better privacy.

Generally though, Electrum is the way to go for a Bitcoin newbie. Sparrow is more advanced. If you don't feel like you'll study Bitcoin, then just dedicate a computer as an airgapped device, and install Tails, using Electrum.

Please note that if you don't run your own full node, then the Electrum / Sparrow server can link your addresses together.