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Questions tagged [wallet.dat]

A file named `wallet.dat` is used by Bitcoin Core which stores private keys and other information necessary to spend Bitcoin.

Wallet.dat files are files created by software derived from the original Satoshi client, including Bitcoin Core. The wallet file is specifically a Berkeley DB database file. It stores private keys, transactions, and other data required to spend Bitcoin. Wallet.dat files can store private keys in an encrypted form to protect users' money even if the file is stolen.

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How does the Bitcoin client encrypt the wallet.dat file?

What is the algorithm used for encrypting the wallet.dat file?
ThePiachu
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Dumping private keys from wallet.dat from command line (pywallet.py alternatives)

I have somewhere in my hard disks some copies of old wallets which I need to analyse. My idea was importing them into blockchain.info, but to do that apparently you need to dump them with pywallet.py, which is one of the worst pieces of software…
o0'.
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How can I create a new wallet on Bitcoin Core?

How can I create a new wallet on Bitcoin Core (Bitcoin QT)? I forgot my old password, so I can't create transactions using the old wallet. I don't have money on my old wallet, I just need to create new wallet without the forgotten password.
user14998
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opening an old wallet.dat

I had about $8 USD worth of bitcoin in a wallet, and I backed up the wallet.dat to my dropbox. According to the modified date of the file this was in April 2013, so it was probaby from bitcoin qt version 0.8.1, or maybe a little earlier. I basically…
valan
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Filesystem is corrupt. How to find wallet.dat?

A customer of mine brought me a 2TB crashed harddrive. The drive itself is not damaged physically, but the file tables (MFT / NTFS) are corrupt so there is zero ability to recover files with their original names. The contents of the drive is not…
bos
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How can I delete an address (private key) in the list of received Bitcoins?

For every transaction I wanted to get, I was creating a new address, but soon I realized that there is just no way to delete all these addresses from the UI. To make it clear, here is a picture: I am using Bitcoin-Qt Is there an easy way to delete…
Salvador Dali
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Why is the Bitcoin Core wallet database moving from Berkeley DB to SQLite?

Why is the Bitcoin Core wallet moving from Berkeley DB to SQLite for its database backend?
Michael Folkson
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How to determine what type of coins a wallet.dat contains?

I have a number of wallets. Is it possible to detect the type of (alternative) coin it contains?
Sammy
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How to move an address to a new wallet?

I have a wallet with several addresses. I would like to isolate one of the addresses in its own wallet, but I don't know how to do it. I've been trying with pywallet.py, but I've been unable to do it. Can you help me, please? EDIT: I've made some…
Francisco R
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Is there a limit to how long a wallet can be offline?

I have a wallet file I backed up June 2011, and has been offline for over a year now. When I copied it back into where the files are stored with the official client, it says my balance is 0, with no transactions. Does it take a long time for my…
jessicah
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How to dump all of addresses from wallet.dat for other alt-coins?

I'm on binarycoin now, with solo mining. Luck smile to me. I'm found 5 blocks. It is 100.0 binarycoins. I'm trying to use "aggressive" speed-up, my daemon compiled with -O3. After last block I caught crash of daemon. And fails of relaunching with…
user2496
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Backing up my bitcoin wallet - is wallet.dat all I care about?

I know that there are many duplicates of this but I'm hoping that the way in which I word this explains and helps not just me, but others as well. In any of the coin wallet bitcoin and the alt coins, when I run a backup I see a wallet.dat file…
Tom Stickel
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Can I check balance of wallet.dat without downloading the block chain?

I have bitcoin associated with a wallet that I am now moving from a server to external storage for backup. As far as I know, all I need to do is copy the wallet.dat file to external storage and I'm good (given that I won't be doing any transactions…
Hudon
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Public Key + Private Key enough to backup?

I invested in bitcoins and unfortunately I have problems to understand the system. Perhaps you can answer me the following questions? 1.a) I know my public and my private key. Do I still have to backup my wallet.dat? 1b) If I need the wallet.dat:…
user4918
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How do I retrieve my backed up wallet to Bitcoin Core?

I backed up my Bitcoin wallet on a drive for safety. Luck has it that my computer crashed. So now I downloaded Bitcoin Core, but do not how to retrieve my backup. Please help. thanks
Niel
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