50 votes

Is there a 'BTC Refund Department'?

I have been scammed 6 months ago Then criminals expect you to be gullible and foolish. You are a prime target for them. So they'll try new ways to trick you. BTC REFUND DEPARTMENT No such thing. ...
RedGrittyBrick's user avatar
25 votes

Wallet gone and lost recovery phrase, how to get back my bitcoins?

Your bitcoins are lost forever, unless you have the key. Let this be a lesson learned to always write down your keys on paper. There are no ways to recover your bitcoins without the key.
Callerap's user avatar
  • 431
16 votes

opening an old wallet.dat

I recently recovered an old wallet.dat file using pywalley.py and Electrum, which allowed me to read the wallet and sweep the coins to a new Electrum wallet. Steps: Get the jackjack pywallet https://...
Phillip Remaker's user avatar
13 votes

Lost my Bitcoin wallet and have only 11 out of 12 mnemonic seed phrase words. How can I get my Bitcoins?

If you are missing the first word and you know the rest of the 11 words, there are 2048 possible mnemonics but only ~128 of them are valid. Using Python and this library you can print all the valid ...
Mike D's user avatar
  • 3,569
12 votes

How can I find a Bitcoin private key that I saved in a text file?

If you're programming savvy you could write a small program that searches for the regular expression of a Bitcoin private key. Bitcoin private keys have a very specific format: They are 51 keys long, ...
Murch's user avatar
  • 75.2k
11 votes
Accepted

In a multisig wallet setup what needs to be backed up and why?

Ben Kaufman answered this on Twitter. The main caveat in a multisig wallet is that, while you need only a threshold of devices (ie. 2 of 3, 3 of 5, etc.) to sign a transaction, losing access to even a ...
Michael Folkson's user avatar
10 votes
Accepted

Is the Electrum seed compatible with other wallets?

There are different "backup-standards". Some use BIP39 (mnemonic) which lacks a flexible wordlist and versioning. It's used by KeepKey, Ledger, Trezor, Bitpay/Copay, etc. Electrum uses a ...
Jonas Schnelli's user avatar
9 votes

Wallet gone and lost recovery phrase, how to get back my bitcoins?

You need your 12 words to get it back. Just that. There is no other way. No bank, no insurance company and no helpdesk that you can turn to. No person or computer in the world is able to recover the ...
Christiaan Westerbeek's user avatar
9 votes

Wallet gone and lost recovery phrase, how to get back my bitcoins?

Depending on what kind of phone you have and depending on what program you used to store your words, you may be able to find a copy of the data on Google Drive (Android default), OneDrive (Microsoft ...
Stephan Bijzitter's user avatar
9 votes

Why do people go looking for old hardware that has a wallet?

Are you talking about the people who mined or bought bitcoins in 2009 - 2011 and are surprised that the price is that high now? HD-wallets (wallets with such a recovery phrase, it's called seed) are ...
hardfork's user avatar
  • 2,117
9 votes

Can I recover btc sent to an incorrect address? (electrum)

Can I recover btc sent to an incorrect address? Confirmed Bitcoin transactions cannot be cancelled, reversed, undone or recovered. The only person who can give you your money back is the recipient, ...
RedGrittyBrick's user avatar
7 votes
Accepted

Can I "duplicate" a wallet using a backup phrase (12 words)?

Can I “duplicate” a wallet using a backup phrase (12 words)? Yes Where is my balance stored? Both wallets will scan the relevant parts of the public transaction-journal ("blockchain") to ...
RedGrittyBrick's user avatar
7 votes

Is it not possible to have password reset feature in Bitcoin Core Wallet?

Because it could be used by anyone with access to your device. You may as well have no passphrase and leave the wallet completely unprotected. Businesses can offer a password reset for an account ...
RedGrittyBrick's user avatar
7 votes

What is the controversy with Ledger's new recovery service?

Christopher Allen answered the question on Twitter. In large part because we didn't expect seeds to ever leave the Ledger device. As it turns out (as all hardware wallet designers already know), all ...
Michael Folkson's user avatar
7 votes

What is the controversy with Ledger's new recovery service?

Ledger Wallet users are concerned if their keys are actually cold and secure after the latest "feature" release and several tweets that have later been deleted by Ledger. The answer to ...
m1xolyd1an's user avatar
  • 5,636
6 votes
Accepted

How to generate recovery phrase from private key

A short working example is worth a 1000 words. % echo -n "This is a VERY pooor low entropy brain wallet" | bx base16-encode | bx sha256 | cut -c 1-32 | bx mnemonic-new health boil host ostrich fire ...
skaht's user avatar
  • 3,057
6 votes

How can I recover the missing end of my private key?

TL;DR: You don't need to bruteforce anything here (at least almost), and can recover the missing last 7 characters on an average PC at home within less than 1 second using a simple Python script! In ...
Johannes Zweng's user avatar
6 votes

I have lost my wallet, what can I do?

I had an account on a website, but don't remember which one Search your email account for an account creation confirmation email. Helpful search terms may include "bitcoin", "wallet&...
5 votes

I've deleted my wallet and never backed up my files. How can I recover my coins?

First, don't panic! Second, make an image backup of the wiped drive to a physically different drive. Third, you maybe able to recover the deleted files with tools such as magic rescue so long as the ...
S0AndS0's user avatar
  • 181
5 votes
Accepted

Bitcoin Cash accidentally sent to Bitcoin address. Can I get them back?

In my case I sent the Bitcoin Cash to an address created by a Mobile Bitcoin (!) wallet from btc.com. The support from btc.com told me the solution: B) You have sent BCC to your BTC wallet: 1. ...
Wolfgang Klenk's user avatar
5 votes

How to generate recovery phrase from private key

Firstly, it is highly recommended not to use a brainwallet, your coins will be stolen. But in general, if you have a private key, there is no way to obtain the 12 word recovery phrase from it. That ...
meshcollider's user avatar
  • 11.8k
5 votes
Accepted

Recover Bitcoin From Transaction ID

All of the information in the screenshot is publicly available. And no, they won't be useful for recovering your Bitcoin. If you used Electrum, you either need the wallet, the recovery phrase(seeds) ...
Chak's user avatar
  • 1,301
5 votes

Can I recover my own wallet from the public key?

This is impossible. The whole point of public key cryptography is that the public key can be shared with anybody, without compromising the private key. If there were a way to recover the private ...
Nate Eldredge's user avatar
5 votes

I formated my hard drive with bitcoin core on it

Addresses are not magically tied to the hardware you use. If you delete the file that contains the private keys for your addresses, you will lose them and thus lose access to your Bitcoin. Since it ...
Ava Chow's user avatar
  • 70.4k
5 votes

Can a BIP39 12-word mnemonic be used to restore a wallet through bitcoin-cli?

Bitcoin Core does not currently support BIP 39 mnemonics nor the size of the BIP 32 seed produced by a BIP 39 mnemonic. BIP 39 produces 512 bit seeds, but Bitcoin Core currently only supports ...
Ava Chow's user avatar
  • 70.4k
5 votes
Accepted

are checksums included in mnemonic seed phrases?

I am assuming that you are talking about BIP 39 here. A BIP 39 mnemonic can have any number of words with the most common being 12, 18, and 24 words. There is a checksum encoded into this mnemonic. ...
Ava Chow's user avatar
  • 70.4k
5 votes
Accepted

How to recover funds from a force-closed Lnd lightning channel?

In c-lightning the per commitment point is derived from the hsm_secret using per_commit_point from: The node id / public key (can be found with listfunds, until the channel is purged some time after ...
Sjors Provoost's user avatar
5 votes

is there such a thing as a wallet frozen due to fraud. Can funds held in such a wallet be returned to the original owner

It's a scam. The upfront 2% fee is a red flag and just the start, if you fall for that, they'll find other fees and charges you need to pay.
RedGrittyBrick's user avatar
5 votes

Why are n public keys needed for reconstitution of an x of n multisig?

The conditions for spending a coin (UTxO) are expressed using a small script. In order to be able to recover your coins, you need to back up both: The script template The private key(s) corresponding ...
Antoine Poinsot's user avatar
4 votes

I'm trying to find out if I invested in bitcoin years ago, how can I find my bitcoin?

If you purchased bitcoin in the past, there are likely only two ways you were storing it. First, you may have been storing it on some web wallet, where the keys to use the bitcoin are managed for you....
Jestin's user avatar
  • 8,812

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