The wallet.dat is the file that allows you to spend money from your Bitcoin account. It is the place where your "private keys" for a corresponding "address" is stored.

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Restore wallet.dat on windows 8

How do I use my wallet.dat on my windows 8 bitcoin qt? Someone posted this C:\Documents and Settings\YourUserName\Application data\Bitcoin (XP) C:\Users\YourUserName\Appdata\Roaming\Bitcoin (Vista ...
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Bitcoin core: why does the wallet file contain transactions?

I really don't understand why the strong coupling here. I mean, whenever I go and make a backup, if there's a new transaction involved, the hash of the backup changes. I wonder why this is. And ...
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44 views

How can I find out which wallet belongs to which cryptocoin? [duplicate]

I have multiple decrypted wallets in the same folder. How can I find out which wallet belongs to which cryptocoin? All wallets are named wallet_x.dat, so the name gives no hint. UPDATE: I have no ...
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30 views

Import android mobile wallet to desktop

I have an android wallet (The Andreas Schildbach one). Is it possible to import this wallet into my desktop wallet? I would like to be able to manage my funds using my mobile or my desktop - both ...
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How do I recover newly created bitcoin addresses from an older wallet.dat?

I had a bitcoin wallet and several other coins' wallets on my laptop and did a backup for my wallets several months before the laptop died. Between that time, I had created several new bitcoin ...
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254 views

How do I load wallet.dat on new PC and import everything into Electrum?

My primary PC died last month due to what I believe is a motherboard error. My EVGA board displays "FF". The fans, drives, everything powers up as usual. But I don't hear any beep, no POST, no BIOS, ...
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39 views

Can i limit the back-up data in wallet.dat?

I want to know is it possible to back-up manually from wallet.dat, consider i am running Dogecoin daemon locally scenario: say user(user1) have some dogecoin balance in addr1 and another user(user2) ...
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90 views

Running Bitcoin Core for first time

I was using the official Bitcoin client some time ago. It was version 0.5 I think. Then my computer crashed and didn't use Bitcoin for a long time. I was lucky because I had a backup of the wallet. ...
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118 views

How to import old wallet to Multibit?

I had 2 Bitcoins on my old PC and got a virus so did a format. But I also did a backup of my bitcoin wallet. Now I want to sell these bitcoins but when I went to the site, the official client was ...
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887 views

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 ...
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125 views

get public key from wallet.dat

Is there a way to get the public key of a given wallet.dat to check the balance in the blockchain to avoid having to install the wallet and read all blocks?
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206 views

What happens if I delete wallet.dat?

I have this question, say I have my coins in my local wallet and 1 of 2 things can happen, say I somehow delete the wallet.dat file or some kind of malware deletes the file. I have the password ...
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99 views

Do all Crypto Coins use the same Wallet Format?

There are many crypto currencies now, BTC, LTC, MTC, Potcoin and so on. Each of these have their own wallet.dat files used by the client software. My question is: Do all these crypto currencies make ...
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583 views

Is it possible to send coins WITHOUT importing private key?

I have a cold storage wallet that I periodically move funds into. I want to be able to send funds out of the wallet quickly. Right now, I have to keep a clean VM up with the full blockchain, then ...
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142 views

What is point of encrypting wallet, if Bitcoin API's sendtoaddress needs passphrase?

The Bitcoin API enables programs on the server to use JSON RPC to interact with the Bitcoin wallet. Most commands do not need the wallet locked (which I assume is the same thing as encrypted). ...
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48 views

What is wallet.dat.gpg?

I'm trying to convince myself that I'm backing up my wallet correctly. I am told my private keys are in the wallet.dat file, but what is wallet.dat.gpg? It's not listed here.
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31 views

How to store wallets online?

Something like blockchain.info appears to keep full wallets online. Do they run a standard bitcoind on thousands of servers (one per person)? Or are the somehow managing to keep individual wallets ...
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52 views

Multiple copies of wallet.dat with a constraint

I know it is generally a very bad idea to share one wallet.dat between many clients on different machines because public/private key sets start divirging after some time if all the clients are allowed ...
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276 views

I want to use another wallet.dat file with bitcoin-qt. Is this possible?

my situation is the following: I have a laptop with not much space on disk and therefore using bitcoin on a stick (I start bitcoin-qt with the argument "-datadir=location/to/stick). Now I wanted to ...
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47 views

Read failed error while wallet transfer

I run ubuntu 12.04 and had to reinstall the OS so I copied wallet.dat and saved them into another computer, now that I am done installing the OS and then installed dogecoind and replaced wallet.dat ...
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29 views

Quick question about wallets

On my current OS I have daemons of bitcoin and other altcoins running in bitcoin there were 5 different addresses lets say userA userB userC userD userE userB has sent some coins to a address ...
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442 views

How do I get my purchsed bitcoins from a old bitcoin wallet? [closed]

I had to refresh my computer do to updates and all my installed software such as Bitcoin wallet was gone after the process. I did back up my wallet almost everyday and also I did it on a external ...
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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 ...
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350 views

If I backup my wallet.dat once, am I forever safe?

I have a dogecoin (though should be similar to bitcoin/altcoins) wallet and I encrypted and backed up my wallet.dat file to a few different places (different cloud providers). Now, assuming I never ...
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798 views

How to get private key from litecoin-qt wallet?

I want to backup only the private key, not the full litecoin-qt wallet for the reason that the wallet can be used only with litecoin-qt client and if I have to use it after few years or on other ...
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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 ...
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81 views

Is wallet.dat transferable between OS?

Am I able to transfer my wallet.dat from Ubuntu QT to Windows QT by backing up the file and pasting in the other operating system?
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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?
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118 views

Does leaving your wallet unencrypted mean that all the private keys bundled in the wallet are susceptable to loss of confidentiality?

I noticed that multiple private keys can be imported into a wallet. If each private key originally had their own private password password to protect the elliptic curve private keys, does importing ...
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6k views

how do I create and encrypt a dogecoin wallet?

I've looked at the dogecoin wiki, but don't see any resources explaining how to actually create a wallet and encrypt it. I'm running dogecoin-qt on Linux. Under "much receive" on the GUI, I can add ...
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654 views

Bitcoin-Qt - backing up unencrypted wallet then encrypting it

If I back up unencrypted wallet.dat somewhere safe (TrueCrypt volume) and then encrypt the wallet by Settings / Encrypt Wallet, will my backup still be useful? I think the message after encrypting the ...
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3k views

How to recover an old wallet.dat file

Back in 2011 when bitcoin started to make the news, I created a wallet and let it run for a bit (no pun intended). It almost fried my computer so I stopped. In the process, I think I remember I mined ...
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352 views

How to import my wallet.dat [duplicate]

I had a couple of bitcoins on a PC that crashed. But I was lucky because I made a backup of my wallet. I haven't used Bitcoins since then. Now I want to sell 1 Bitcoin. But when I went to the ...
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359 views

Exported wallet.dat from bitcoin-qt. Then uninstalled bitcoin-qt. Now the wallet is empty!

Some months ago, I installed bitcoin-qt on Ubuntu, created a wallet and address, then transferred funds to it from MtGox. I let it sync up for over 10 days, but it never fully synced. So I exported a ...
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Make sure my offline Wallet is ok?

Let's say I make an offline wallet from a live cd with bitcoins-qt. I make some addresses (10 pcs.) I encrypt the wallet. Save it on a usb (wallet.dat). I then send over some bitcoins to one of my ...
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374 views

Bitcoin-QT client shows coins, but cannot find wallet.dat

It's been a couple years, and I opened my bitcoin-qt client. It says I have coins, but is taking days to "sync with network". Further, I cannot find a wallet.dat file anywhere on my system. How ...
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Wallet.dat Corrupted help please?

I bought bitcoins about a year half ago and my hard drive broke and i managed to recover them using a recovery tool that found wallet.dat from a deleted wallet on another hard drive but its courrped ...
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Sent bitcoins to my unencrypted wallet and encrypted the wallet before file synced, is there any way i can get them back?

Thanks in advance for any light you can shed on my problem.. I think I sent bitcoins from an online wallet to my offline wallet BitcoinQT(0.81) in august. The transaction has been confirmed, but not ...
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How do I find a renamed wallet whose name I can't remember?

I bought BTC in 2011 and renamed my wallet.dat to something else that I cannot remember. How can I find my wallet file on my computer? I'm prepared to use the command line and scripting.
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358 views

Bitcoin wallet - why do i need it for cold storage?

Why do I need a bitcoin wallet for cold storage? Can I just write down randomly generated public address and private key pairs, and keep these on paper? I am confused by the apparent need for a ...
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520 views

Bitcoin-QT wallet.dat prior to adding passphrase

On almost any Bitcoin-QT tutorial I notice people recommending to: (step 1) back up your wallet.dat before adding a passphrase. (step 2) Add a passphrase and copy your new wallet.dat to a USB .... ...
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What permissions should wallet.dat have to be as secure as possible and still work?

I would like to restrict the permissions on my wallet.dat file but but I don't want to stop the bitcoind daemon from functioning. What are the bear minimum permissions that need to be on wallet.dat ...
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Doubt about Bitcoin SCI

What's up guys... I'm trying to figure out what's the best shopping card interface I should use. I want a PHP based, simple to work with. Was looking on bitfreak sci, looks good, but the negative ...
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774 views

Lost my bitcoins, was I hacked?

Last time I used my Bitcoin-qt client was a few months ago. I made a backup of the wallet to an external USB drive. Yesterday, I started the client and after it synchronized the block-chain, I saw ...
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678 views

BlockChain.Info Incorrect Balance

Recently my Bitcoin-Qt client started crashing on start-up (running Mac OS X 10.7.4). I was able to stop the crashing by removing the blocks directory and letting it re-download the blockchain. ...
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136 views

Opening wallet.dat in python, using bsddb3

I'm trying to open wallet.dat using the bsddb3 module for Python 2.7. db = bsddb3.btopen("wallet.dat", "r") contents of db: {'main': '\x00\x00\x00\x02'} I have to Which is almost nothing. ls -l ...
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How frequently should one update wallet backup?

How frequently should one update a wallet.dat file backup?
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2k views

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 ...
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682 views

Shared Wallets and Syncing

A few clarifications about running the bitcoin client (let's say bitcoin-qt) on multiple machines on a private. Question is sort of hypothetical but I was hoping to get some insight into ...
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205 views

Securing web app wallet.dat (Ubuntu)

I'm building a web app making JSON-RPC calls to the bitcoind server. I have security concerns on how to protect the wallet.dat file. I'm encrypting the directory where wallet.dat will be. Should I ...