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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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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48 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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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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52 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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551 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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25 views

Offline storage of wallet in a truecrypt volume

So am I thinking along the right lines here? I have bitcoin-qt that I am running without first installing, pointing it at a truecrypt volume where the wallet.dat is stored as explained in 6015. So ...
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96 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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37 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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28 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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46 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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152 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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31 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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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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243 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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282 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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509 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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635 views

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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74 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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114 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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495 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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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 ...
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340 views

How to import my wallet.dat

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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342 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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469 views

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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365 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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947 views

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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351 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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514 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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759 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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602 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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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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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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643 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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194 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 ...
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297 views

Are desktop wallets transferable?

I know you can make a transaction across the blockchain to move your Bitcoins from say Bitcoin-QT to Multibit, but is it possible to import my wallet.dat file from Bitcoin-QT to another desktop wallet ...
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275 views

Failure trying to import old wallet.dat [closed]

I found an old wallet.dat, but I cannot import it and I don't know why.
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How can I access a bitcoind instance from another device with wallet functionality?

I'm running bitcoind 7x24 on a linux host on my network so it is always in synch. Options like: -rpcuser=<user> Username for JSON-RPC connections -rpcpassword=<pw> ...
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What is the wallet in MultiBit?

What is the actual wallet? The slight confusion comes from the install note - "Backup all your wallets. You can do this by exporting your private keys using 'Tools | Export Private Keys'." If a ...
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2k views

How do I switch from Bitcoin-QT to a lighter, faster (SPV) Bitcoin client?

So, keeping up to date with the blockchain is getting ridiculous in Bitcoin-QT, especially on my laptop. If I leave it off or away from the internet for even a short period of time, it takes forever ...
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335 views

How to remove private keys from wallet.dat and create “receive only” wallet?

I want to create a wallet for monitoring incoming transactions. So it should be receive only wallet that will be place on hosting, that is potentially not secure. If I understand it well, this won't ...
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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 ...
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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. ...