Jump to: , The data directory is the location where Bitcoin's data files are stored, including the wallet data file.Contents 1 2 3 4 5 Go to Start -> Run (or press WinKey+R) and run this: Bitcoin's data folder will open.For most users, this is the following locations: "AppData" and "Application data" are hidden by default.You can also store Bitcoin data files in any other drive or folder.If you have already downloaded the data then you will have to move the data to the new folder.If you want to store them in D:\BitcoinData then click on "Properties" of a shortcut to bitcoin-qt.exe and add -datadir=D:\BitcoinData at the end as an example: Start Bitcoin, now you will see all the files are created in the new data directory.By default Bitcoin will put its data here: You need to do a "ls -a" to see directories that start with a dot.If that's not it, you can do a search like this: By default Bitcoin will put its data here: An overview of these is in [files.md] in the Bitcoin Core documentation.

The data, index and log files are used by Oracle Berkeley DB, the embedded key/value data store that Bitcoin uses.Contains testnet versions of these files (if running with -testnet) [v0.8 and above] Contains blockchain data.[v0.8 and above] A LevelDB database with a compact representation of all currently unspent transaction outputs and some metadata about the transactions they are from.The data here is necessary for validating new incoming blocks and transactions.It can theoretically be rebuilt from the block data (see the -reindex command line option), but this takes a rather long time.Without it, you could still theoretically do validation indeed, but it would mean a full scan through the blocks (7 GB as of may 2013) for every output being spent.[v0.8 and above] Contains "undo" data.You can see blocks as 'patches' to the chain state (they consume some unspent outputs, and produce new ones), and see the undo data as reverse patches.They are necessary for rolling back the chainstate, which is necessary in case of reorganizations.

There is a torrent file that gets updated every few months that enables a much faster download of the blockchain.Once downloaded, the bootstrap.dat file can be placed in the root of the data directory, and Bitcoin Core 0.7.1 and above will automatically import it.bitcoin miner software macNOTE: As of Bitcoin Core version 0.10.0 and later, the blockchain bootstrap torrent is slower than a direct download using the bitcoin P2P protocol & client.[2]bitcoin kapitalThis section may be of use to you if you wish to send a friend the blockchain, avoiding them a hefty download.bitcoin bowl radioOther files and folders (blocks, blocks/index, chainstate) may be safely transferred/archived as they contain information pertaining only to the public blockchain.bitcoin sync size

The database files in the "blocks" and "chainstate" directories are cross-platform, and can be copied between different installations.These files, known collectively as a node's "block database", represent all of the information downloaded by a node during the syncing process.bitcoin prijs nuIn other words, if you copy installation A's block database into installation B, installation B will then have the same syncing percentage as installation A. This is usually far faster than doing the normal initial sync over again.bitcoin cuanto vale en dolaresHowever, when you copy someone's database in this way, you are trusting them absolutely.bitcoin powBitcoin Core treats its block database files as 100% accurate and trustworthy, whereas during the normal initial sync it treats each block offered by a peer as invalid until proven otherwise.ethereum peers

If an attacker is able to modify your block database files, then they can do all sorts of evil things which could cause you to lose bitcoins.bitcoin farming usbTherefore, you should only copy block databases from Bitcoin installations under your personal control, and only over a secure connection.Each node has a unique block database, and all of the files are highly connected.So if you copy just a few files from one installation's "blocks" or "chainstate" directories into another installation, this will almost certainly cause the second node to crash or get stuck at some random point in the future.If you want to copy a block database from one installation to another, you have to delete the old database and copy all of the files at once.Both nodes have to be shut down while copying.Only the file with the highest number in the "blocks" directory is ever written to.The earlier files will never change.Also, when these blk*.dat files are accessed, they are usually accessed in a highly sequential manner.

Therefore, it's possible to symlink the "blocks" directory or some subset of the blk*.dat files individually onto a magnetic storage drive without much loss in performance (see Splitting the data directory), and if two installations start out with identical block databases (due to the copying described previously), subsequent runs of rsync will be very efficient._ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote down vote favorite 12 I had Bitcoin-Qt on my computer with several bitcoins in my wallet, using Vista.Then my computer crashed.Finally I was able to get my computer fixed and download a new version of Bitcoin-Qt.Now I would like to import my original wallet.dat from the old client which was encrypted into an new version of Bitcoin-Qt.How do I do that?bitcoin-core wallet-import up vote down vote First, close the Bitcoin-Qt client.Then you have to locate your Bitcoin folder.

For Windows, it should be here: %APPDATA%\Bitcoin In that folder, there should be a wallet.dat file.If you currently have no bitcoins in your wallet, you can just delete that file and replace it with your backup.If you have some bitcoins in this wallet as well, backup that wallet file as well, or send all the coins to an address from your backed up wallet.When you placed the other wallet.dat file in place, you should run Bitcoin-Qt with the -rescan option.Here's how to do that in Windows: Go to C:\Program Files (x86)\Bitcoin using Windows Explorer.In that folder, hold shift and right-click and select Open command window here (picture).In the command prompt, type bitcoin-qt.exe -rescan and hit enter (picture).Now Bitcoin-Qt should start and rescan the blockchain to calculate the balances of the addresses in your wallet.dat file.(Source for pictures: cant see bitcoin after restore of backup) up vote 0 down vote I think the above answer is good, but I have typically restored a few times with 1.