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Questions tagged [offline]

The tag has no usage guidance.

1 vote
0 answers
36 views

Offline wallet.dat storage for large amounts

I would like to store my bitcoin wallet offline and need a few pointers. Since this will be my long-term savings storage (decent amount, rarely accessed), I will use one PC (online) with only ubuntu ...
MostlypeacefulBitcoin's user avatar
0 votes
1 answer
50 views

Offline transaction on exchanges

Do cryptocurrency exchanges use offline transactions?And if yes when they use it?Also is offline transactions somehow related to off chain transaction?
juhasa's user avatar
  • 1
0 votes
1 answer
86 views

Where to find a people who have bitcoins, to exchange USD to BTC with no KYC offline?

I have cash in USD, i want to buy BTC in my city, but i don't want to buy it with exchange magazine, because bad exchange rate and because it requires KYC and i'm not want to my personal data will ...
user143572's user avatar
2 votes
1 answer
133 views

Create offline bitcoin tx for p2pkh address in a user-friendly way?

You created vanity p2pkh-addresses in the past, you have access to the private keys (WIF) and addresses (1...). Now you want to spend the funds securely and in an offline way (you do not want to ...
hodddl's user avatar
  • 101
1 vote
1 answer
39 views

What if there where no nodes to share a new block

I am fairly new to blockchain technology, so bear with me if i make mistakes So lets say there are 10 people trading a cryptocurrency 5 of them are online from 8 to 10 am and the other half on online ...
DanishDeveloper's user avatar
1 vote
1 answer
130 views

Pay invoice to offline lightning node

I wonder if there is a way to force a refund. Let's say A makes a payment to B. Later, B finds that he has to refund A, but A is offline. Can B reverse this payment while A is offline? Could it be a ...
Olympus's user avatar
  • 13
0 votes
0 answers
86 views

How safe it is to store keys in Electrum? I think Luke Dash JR didn't recommend it

I agree with Luke Dash Jr and in general this wiki with the fact that doing anything without a full node is a mistake: https://en.bitcoin.it/wiki/Clearing_Up_Misconceptions_About_Full_Nodes But my ...
walamagic's user avatar
0 votes
1 answer
231 views

How to use Bitcoin Core on a laptop as a hardware wallet [duplicate]

I would like to have the following setup: Bitcoin Core on an offline laptop. Here the private keys are stored. Full disk encryption. Bitcoin Core on an online laptop. Here watch-only addresses from ...
walamagic's user avatar
0 votes
1 answer
507 views

How to create a physical/paper backup for bitcoin-core wallet?

I am using bitcoin-core for my offline storage. In electrum I can do a paper backup by writing down the mnemonics. bitcoin-core seems to be using a different mechanism to generate the wallet. What I ...
bbnn's user avatar
  • 247
0 votes
3 answers
727 views

Is there a way to create a tx completely offline? Maybe with a script or cli commands?

I mean generating the transaction itself offline, assuming I know in advance how much bitcoin a UTXO has. In other words, without querying the network for the UTXO balance. Then I also need to sign ...
Pineapple29's user avatar
1 vote
1 answer
153 views

Is there some kind of USB antenna I can buy to be able to use Bitcoin even when there is no Internet?

Let's say they cut the Internet tomorrow. I will still have my private keys on my offline computer, but I won't be able to sync the blockchain (as won't anyone else) nor would i be able to make any ...
Flem Zenthoefer's user avatar
0 votes
1 answer
105 views

Offline Bitcoin Wallet [closed]

I would like to have bitcoin and store them as safely as possible. I want bitcoin data to be stored on my disk -- I don't want to some online service to manage my wallet. I also would like to have ...
Trismegistos's user avatar
1 vote
2 answers
82 views

Taking out bitcoin from offline wallet

Ok, let's say I have an offline wallet for storing my bitcoin, now I have got a good amount of bitcoin, but i don't want to take out everything from the wallet, I only want to take out a small amount, ...
oliber's user avatar
  • 11
2 votes
1 answer
231 views

how to get bitcoin off an exchange?

As a corollary to asking how to transfer from cold storage, how is bitcoin first put into a paper, or other wallet, when it originates on an exchange? My primary concern is more getting the coins out ...
Thufir's user avatar
  • 211
0 votes
1 answer
159 views

Generating a BCH address offline

To generate offline BTC addresses, I use the bitcoin-core app from bitcoincore.org. What is the BCH equivalent of this? Is it the bitcoin-unlimited app?
oshirowanen's user avatar

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