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Questions tagged [wallet.dat]

This tag should be used for questions regarding wallet.dat files. A wallet.dat is a file used by Bitcoin Core which stores private keys and other information necessary to spend Bitcoin.

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2
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1answer
83 views

Can a core wallet coinbase-transaction (generation transaction) be moved intact to a net new core wallet?

Can a core wallet coinbase-transaction (generation transaction) be moved intact to a net new core wallet? Wanting to go through cautious steps to claim BCH but, I hear a BTC coinbase-transaction when ...
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2answers
491 views

Deleted/Can' Find Wallet

I bought and used bitcoins 5-6 years ago through a machine (paid cash) in a bank here in Australia, I had a wallet/dat.file on my Mac Desktop that I think has been deleted well at last I can't find it,...
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1answer
303 views

After generating my own private key, what's the proper way to add it to official wallet software?

I've got some Go code that successfully generates private keys and vanity addresses as described by the wiki. So I have all the parameters around the private key but I'm not sure what to do with that ...
0
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1answer
637 views

how to recover a wallet from crashed bitcoin core

I was synchronising for the first time bitcoin core on Mac OSX. During this never ending process I had the brilliant idea to send some BTC to my wallet from my Kraken account. At some point the app ...
0
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1answer
672 views

View recovered wallet.dat contents without sync?

After recovering a wallet.dat file, and replacing the default wallet.dat file Bitcoin-Core created after a fresh install, should I be seeing the amount of BTC in the wallet even before a full sync? ...
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0answers
267 views

I have an issue with my wallet. it is giving me fatal error

Sorry to ask it here because I can not find a better place.. This question is related to my Dogecoin wallet ... I accumulated some dogecoin in the past, but I have not been able to recover them for ...
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0answers
1k views

Old (2010) Wallet - Can't figure out best and safest way to extract

The following is based on my very limited understanding of the software involved in Bitcoin (I have a reasonable understanding of the structure of Bitcoin itself at a high level). I read an article ...
2
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2answers
1k views

Have a bunch of wallet.dat files. What alt-coins do they have (and may be how much)?

A few years ago I mined a couple of alt-coins. Now I have approximately 5 wallets which are named in non-suggestive way: wallet_01.dat, wallet_02.dat, ..., wallet_05.dat. Each of them has reasonable ...
2
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1answer
329 views

Is it possible to interact with the blockchain through bitcoin-core without a wallet?

Im running a full node and am developing an application that interacts with it. One of its features is users should be able to create a pair of Bitcoin PrivKey and PubKey. But for security reasons, I ...
3
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1answer
1k views

Found an old wallet with transaction history with coins (unconfirmed), but no balance [duplicate]

I have found an old bitcoin wallet in my files. I can see there are old transactions but they aren't confirmed. But there should be more BTC received than was sent, so there should be a balance. Is ...
5
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1answer
15k views

How can I get the private key from wallet.dat from 2011 Bitcoin software on WinXP?

I set up Bitcoin (application) software on a WinXP machine in 2011 and received some Bitcoin. I set the machine aside, disconnected from the internet. Now I want to access the 2011 Bitcoin. Lately I ...
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1answer
2k views

Help with very old wallet.dat file and keys, next steps?

recently I found a very old wallet.dat file back from 2011 (I did some mining back then). I was able to run pywallet to export the keys into JSON file, this file includes private keys and all, so i ...
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1answer
577 views

Bitcoin QT wallet crashed. Recovered using Bitcoin Core. Now password rejected!

My encrypted Bitcoin QT wallet crashed years ago but I have backup copies. It was an earlyish version of Bitcoin QT wallet, first transaction on it is 09/2012. I have loaded the backup into Bitcoin ...
2
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0answers
2k views

Litecoin Core wallet.dat [closed]

I am trying to recover my old LTC account. I still have the address (on blockchain I can still see the correct amount of LTC) and I still hold the old wallet.dat file, which I saved in the past. I'...
3
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1answer
489 views

How do I find out which wallet fits which client?

I found a really old Bitcoin wallet, a wallet.dat file, and tried to open it. Bitcoin Core told me that the wallet is corrupted. But I also found out that different clients make different wallets, so ...
0
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1answer
814 views

How to know a given file is a valid bitcoin wallet? [duplicate]

If I have many files on my hard drive (possibly with different names/extension), how can I test which file is a valid bitcoin wallet.dat ? Maybe there is some string that exists in every bitcoin ...
2
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1answer
495 views

Problems restoring wallet

First of all .. yes im stupid. Now .. I had some BTC a few years ago. Thought I had kept it safe, now I seem to have reinstalled the OS on that PC and wiped profile folder. I looked around for a ...
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0answers
2k views

How to dump all private key from wallet.dat (walletversion > 130000)?

I tried to use pywallet and it can't dump all of the wallet's private keys. When I send 10 transactions & decode raw transactions, I will get 10 new addresses, but I can't dump all of the private ...
4
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2answers
1k views

Identifying wallet file among soup of recovered .dat files

Hello my friends! Here is my situation: I accidentally deleted a partition on my HDD containing the only copy of my bitcoin wallet. Facepalm. After running data recovery tools, I've found and ...
3
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0answers
281 views

Transferring wallet.dat from PC to Raspberry PI

I have the Stratis QT sofware running on my computer. I also have a working version of stratisd running on a raspberry pi, which I set up following this tutorial If I try to swap my wallet.dat on my ...
1
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1answer
83 views

keypool and restoring from backup

I have a wallet running on a raspbery pi and the SD card hit the skids, fortunatley I have a backup of the .iso from 1 month ago so I have recovered the entire state as of that time. My only concern ...
7
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1answer
9k views

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
2
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1answer
3k views

How does salvagewallet work?

What can I expect using the salvagewallet command? What is it actually doing? I am asking specifically about the zcoin fork, if that matters. How can this help with corrupted wallet? How can Wallets ...
2
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0answers
2k views

Extract private keys from litecoin-qt wallet.dat file

I used litecoin-qt back in 2014, and used the backup feature, which gave me a wallet.dat file... Now i want to extract the private key from the wallet.dat file so it can be used in electrum. I do not ...
1
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1answer
346 views

How do I prune/clean wallet.dat for old unused addresses

Are there any easy way to prune wallet.dat? Like, deleting keys for addresses with no current balance and generated more than a month ago?
1
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1answer
276 views

Uniquely identify two wallet.dat files

I have two encrypted wallet.dat files and I'm looking for a way to uniquely identify them from each other. I started using a md5 hash but then I quickly realized that this hash changed each time the ...
1
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1answer
181 views

Can I move my wallet.dat from Ubuntu to Mac OS?

I want to run Bitcoin Core on Mac OS. Can I move my existing wallet.dat file from Ubuntu and use it in Mac OS? I am using Bitcoin Core.
4
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3answers
406 views

How can I verify my wallet.dat file against an older version?

I recently ran into an issue with an unsafe shutdown corruption on an NTFS partition in such a way that the files all existed, but chkdsk had to be run to verify some non-essential files. My peers....
3
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0answers
947 views

Format of mkey field in encrypted wallet.dat file

I am writing a C++ application to scour large files (typically disk images) for wallet.dat files, with the intention of recovering the private keys. At the moment I am struggling the data contained ...
2
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2answers
2k views

Bitcoin wallet file location in smartphone

I would like to know where is the wallet file (or private keys) stored on usually in the Bitcoin mobile wallet such as Android wallet (Mycelium or Bitcoin wallet)? Because I installed Bitcoin wallet ...
2
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3answers
489 views

Is it normal not to see my sending/receiving addresses while the bitcoin client is syncing?

I am using bitcoin core on windows 7, it takes forever to sync and during this time I cannot see any sending/receiving addresses in my interface, I only see "balances" (empty), "recent transactions" (...
2
votes
1answer
881 views

How to import wallet.dat.txt file, to convert a txt document into usable BTC?

this will be my first time posting here so please forgive any newbyness. A friend recently gave me an old thumbdrive with a wallet.dat.txt file on it. He had bought a full BTC but didn't know what he ...
7
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1answer
2k views

Can I retrieve my bitcoins from years ago that I never received?

How can I get hold of my bitcoins that never made it to my wallet years ago? I purchased some bitcoins years ago (have got my receipt and all emails from who I purchased). I downloaded Bitcoin-Qt 7, ...
3
votes
1answer
182 views

What is the risk of using wallet.dat files for long term cold storage?

i created these wallet.dat files on an offline machine in 2014 using QT. I've sent coins to the receiving addies over the years. these files are bip38 encrypted. do i need to do anything to these ...
3
votes
2answers
726 views

Safely transferring bitcoins from wallet.dat to cold storage

A similar question was asked by me in 2014, but I did not find the answer satisfactory back then, and I hope some things changed since in the last two or so years. I have a wallet.dat file with some ...
2
votes
1answer
506 views

Bitcoins lost in Bitcoin Core?

I sent a small amount of bitcoins to my bitcoin core account when I was messing around learning to use bitcoins several years ago. I am trying to access these coins but I never got along to utilizing ...
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0answers
5k views

Where is wallet.dat file?

I have clearly installed Windows 7 and Bitcoin Core. There is no Bitcoin folder in {User}/AppData/Roaming... Blockchain is dowloading but I cannot find where it is and wallet.dat also. Anybody help? ...
2
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1answer
4k views

How can I fix corrupted encrypted wallet.dat?

My only one backup of encrypted wallet is corrupted (last time when backed it up i probably didn't shutdown bitcoin-qt), with hex editor i found in it: mkey ckey (117 that looks fine) Does this ...
1
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0answers
90 views

Do Berkley DB versions need to be the same?

If I build using --with-incompatible-bdb, will the resulting wallet be incompatible with the bitcoin core client from bitcoin.org? What if I'm using a newer version?
3
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2answers
4k views

Recover Old Bitcoin Wallet (Currently getting a Segfault)

I have a bit of bitcoin lingering in an old bitcoin wallet (circa 2011). I just restored it from a backup but I can't seem to load it into bitcoin-qt. If I launch the app, shut it down, the copy in ...
1
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1answer
32 views

Export all address from bitcoind on one server to bitcoind on another server

I need to install bitcoind on a new server, but I already have many addresses in use on the old server. If I want to reuse all of those addresses on the new server, do I need to copy just the wallet....
1
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0answers
426 views

Import Wallet.dat with bitcoins on it [duplicate]

This might sound a bit odd. I have had a Bitcoin app for a few years now. A few years ago I made a copy of Wallet.dat and put it on a stick. Now my computer crashed and i don't know how to import it ...
10
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1answer
2k views

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 ...
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0answers
479 views

How do I import my wallet.dat file into a new wallet? [closed]

I have my wallet.dat backup file, but Bitcoin Core isn't able to verify it. How do I retrieve my backup?
2
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1answer
542 views

Account Addresses after moving wallet.dat to new computer

I reinstalled bitcoin on a new computer, and took my old wallet.dat file from an old pc that had v.0.3 of the bitcoin software. I had 2 receiving addresses when I started. When I typed ...
3
votes
1answer
73 views

Why does wallet.dat differ after running?

What information is exactly saved inside the wallet.dat file? When I run the bitcoin daemon, then stop, then compare the new wallet.dat file with the old one, the binary files differ, although I didn'...
0
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1answer
596 views

Please help! How do I transfer my wallet from bitcoin core to MultibitHD? [duplicate]

I (should by now) have bitcoins in my wallet,I sent them to my wallet whilst i was using bitcoin core but after taking days to sync (and it still hasn't synced) i have given up and installed ...
2
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0answers
697 views

Import OLD wallet.dat to new Bitcoin core

i made a wallet.dat backup in an old version of bitcoin qt. The mac where i had wallet is dead. In other mac with the last version of bitcoin core when i try to replace the wallet.dat the app crushes. ...
2
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1answer
240 views

Why does my wallet size increase over time?

Why does the size of the output of      bitcoin-clibackupwallet or, equivalently, wallet.dat increase over time?
3
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1answer
2k views

What are the contents of the wallet.dat file? What is Key pool, default key and reserve keys?

There is this https://en.bitcoin.it/wiki/Wallet simple explanation of the contents of a wallet.dat file from bitcoin-core/bitcoin-qt. I have some questions about this: What is the default key? Does ...