Safe Your private keys are encrypted and never leave your computer.Forgiving Your funds can be recovered from a secret phrase.Instant On Electrum is fast, because it uses servers that index the Bitcoin blockchain.No Lock-In You can export your private keys and use them in other Bitcoin clients.No Downtimes Electrum servers are decentralized and redundant.Your wallet is never down.Proof Checking Electrum Wallet verifies all the transactions in your history using SPV.Cold Storage Keep your private keys offline, and go online with a watching-only wallet.Multisig Split the permission to spend your coins between several wallets.Add-ons Electrum supports third-party plugins: Multisig services, Hardware wallets, etc. Documentation Community Support IRC channel: #electrum channel on Freenode Report bugs, request features, help with development: electrum page on GitHub Localization: https://crowdin.net/project/electrum Forums As well as on Reddit Official announcements are made on Twitter Electrum Servers Server source code: ElectrumX (new, faster implementation) How to run your own Electrum server: Install Guide Servers list and status (Lists only Bitcoin Electrum servers) Statistics from Petrkr's server About Electrum Electrum was created by Thomas Voegtlin in November 2011.

Since then, various developers have contributed to its source code.bitcoin nsa ciaDevelopers with Github write access Thomas Voegtlin [github] [gpg] Maran Hidskes [github] [gpg] Michael Wozniak [github] [pgp] EagleTM [github] Impressum This website is hosted by Electrum Technologies GmbH Electrum Technologies was founded by Thomas Voegtlin in 2013.bitcoin miner bladeIts mission is to develop, package and distribute Electrum software, and to provide services to Bitcoin users and businesses.bitcoin ban countriesAddress Electrum Technologies GmbH Waldemarstr 37a 10999 Berlin - Germany Disclaimerbitcoin armory wallet

Jump to: , The data directory is the location where Bitcoin's data files are stored, including the wallet data file.bitcoin hash to dollarContents 1 2 3 4 5 Go to Start -> Run (or press WinKey+R) and run this: Bitcoin's data folder will open.bitcoin pastebinFor most users, this is the following locations: "AppData" and "Application data" are hidden by default.bitcoin keeps climbingYou can also store Bitcoin data files in any other drive or folder.bitcoin dotcomIf you have already downloaded the data then you will have to move the data to the new folder.ethereum short termIf 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.NOTE: 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]This section may be of use to you if you wish to send a friend the blockchain, avoiding them a hefty download.Other files and folders (blocks, blocks/index, chainstate) may be safely transferred/archived as they contain information pertaining only to the public blockchain.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.In 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.However, when you copy someone's database in this way, you are trusting them absolutely.Bitcoin 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.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.Therefore, 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.