Frequently Asked Questions How does Electrum bitcoin wallet file? My transaction has been unconfirmed for a long time. Can I import private keys from other Bitcoin clients?
Can I sweep private keys from other Bitcoin clients? Where is my wallet file located? Can I do bulk payments with Electrum? Can Electrum create and sign raw transactions? Electrum freezes when I try to send bitcoins.
How can I pre-generate new addresses? The seed is a random phrase that is used to generate your private keys. Your wallet can be entirely recovered from its seed. The seed phrase created by Electrum has 132 bits of entropy.
It is not possible to recover your password. However, you can restore your wallet from its seed phrase and choose a new password. If you lose both your password and your seed, there is no way to recover your money. This feature is enabled by default in recent versions of Electrum. Eventually, your transaction will either be confirmed or cancelled.
A CPFP is a new transaction that pays a high fee in order to compensate for the small fee of its parent transaction. It can be done by the recipient of the funds, or by the sender, if the transaction has a change output. A window will popup with the unsigned transaction. When you freeze an address, the funds in that address will not be used for sending bitcoins. You cannot send bitcoins if you don’t have enough funds in the non-frozen addresses. Your seed and private keys are encrypted using AES-256-CBC.
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This is done in order to minimize the amount of time during which sensitive information is unencrypted in your computer’s memory. In addition, your wallet file may be encrypted on disk. Note that the wallet information will remain unencrypted in the memory of your computer for the duration of your session. If a wallet is encrypted, then its password will be required in order to open it. Wallet file encryption is activated by default since version 2.
It is intended to protect your privacy, but also to prevent you from requesting bitcoins on a wallet that you do not control. 0, you cannot import private keys in a wallet that has a seed. If you want to import private keys and not sweep them, you need to create a special wallet that does not have a seed. You will need to back up this wallet, because it cannot be recovered from a seed.
Sweeping private keys means to send all the bitcoins they control to an existing address in your wallet. The private keys you sweep do not become a part of your wallet. Enter the private keys in the appropriate field. That is the destination address and it will be from your existing electrum wallet. You can create a transaction with several outputs.
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In the GUI, type each address and amount on a line, separated by a comma. Amounts are in the current unit set in the client. The total is shown in the GUI. Electrum lets you create and sign raw transactions right from the user interface using a form. The gap limit is the maximum number of consecutive unused addresses in your deterministic sequence of addresses. Electrum uses it in order to stop looking for addresses.
0, it is set to 20 by default, so the client will get all addresses until 20 unused addresses are found. Electrum will generate new addresses as you use them, until it hits the gap limit. If you need to pre-generate more addresses, you can do so by typing wallet. This command will generate one new address.
Note that the address will be shown with a red background in the address tab to indicate that it is beyond the gap limit. The red color will remain until the gap is filled. WARNING: Addresses beyond the gap limit will not automatically be recovered from the seed. To recover them will require either increasing the client’s gap limit or generating new addresses until the used addresses are found. Warning: always save your wallet seed on paper before doing an upgrade. To upgrade Electrum, just install the most recent version.
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The way to do this will depend on your OS. Note that your wallet files are stored separately from the software, so you can safely remove the old version of the software if your OS does not do it for you. Some Electrum upgrades will modify the format of your wallet files. For this reason, it is not recommended to downgrade Electrum to an older version once you have opened your wallet file with the new version. The older version will not always be able to read the new wallet file. The following issues should be considered when upgrading Electrum 1.
Please allow it time to complete, and expect it to take a little longer than usual for Electrum to be ready. The contents of your wallet file will be replaced with an Electrum 2 wallet. Restart Electrum 2 after the upgrade is complete and your addresses will be available. Offline copies of Electrum will not show the addresses at all because it cannot synchronize with the network. You can force an offline generation of a few addresses by typing the following into the Console: wallet. When it’s complete, restart Electrum and your addresses will once again be available.
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Built with Sphinx using a theme provided by Read the Docs. A single-page Android application which allows you to store bitcoins securely and transfer them easily. An HD wallet which means your balance and full transaction history can always be restored using a single mnemonic code should anything bad happen to your device. Is intended for mobile devices, hence it does not store a full Blockchain but instead acquires all the relevant data from remote full Bitcoin nodes using an SPV technique. Mnemonic code All Bitcoin addresses and private keys in Simple Bitcoin Wallet come from a single mnemonic code which is essentially a secret phrase comprising of 12 random words. Please remember: whoever knows your mnemonic code also fully controls your bitcoins so it should be kept private at all times.
Also, only mnemonic code can get your bitcoins back in case if you lose your device or forget your wallet password or simply uninstall an app by accident, it’s that important! Either write your mnemonic code on a piece of paper and store it in a really secure place. Or encrypt your mnemonic code using wallet password as a key and store it wherever you like. For that you can use AES-256 text encryption in Secret Space Encryptor which is a popular open source Android app. Unconfirmed transactions Here’s a simple heuristic: treat any unconfirmed incoming transaction as if it does not exist yet. There are a lot of technical reasons for this and the rule applies to all wallets, not just to Simple Bitcoin Wallet.
Just wait for at least one confirmation and you’ll be fine. Transaction fees Every transaction you send must have some fee attached to it. Fee goes not to wallet developer but to Bitcoin miners who include transactions in blocks and thus give them confirmations. The higher fee you choose the faster transaction will be confirmed. Wallet addresses Due to privacy considerations wallet has not one but many addresses. In fact, wallet’s default address gets changed on every new incoming transaction. Never worry about it as all the old wallet addresses stay valid forever and you can use any of them to receive funds.
It’s important to understand that Simple Bitcoin Wallet is not a centralized service so you can’t regain access to your funds by just providing an email or something like that. Open fresh application and you’ll be given an option to restore your wallet instead of creating a new one, choose it and enter your mnemonic code as well as new wallet password. Important note: restored wallet will appear empty at first and that is completely normal as it needs some time to catch up with network. Doing so will increase wallet’s security and reliability. Check all the recommended wallets at bitcoin. Spanish translation help by Andres Jalinton.
An article from Andres which explains Bitcoin in Spanish. How to Keep Bitcoins Safe What is an Altcoin? How to Get Bitcoins Is Bitcoin Legal? 0is one of the most important decisions for a Bitcoin user to make, and that is why we have done an extremely thorough Bitcoin wallet review for all major Bitcoin wallets.
In this article we will perform bitcoin wallet reviews, including providing the current best option, by looking at ease of use, security and advanced features for the major wallets in each category: Online Bitcoin Wallets, Desktop Bitcoin Wallets and Mobile Bitcoin Wallets. Regardless of what kind of electronic payment system you are using if you want to spend digital money then you need to have a digital wallet. Bitcoin differs from every other online payment system. Bitcoin has no central provider and anyone can build a bitcoin wallet. Consequently, there are several dozen bitcoin wallets to choose from and they all vary in terms of ease of use, security and advanced features which makes it important to carefully consider these bitcoin wallet reviews.
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The Bitcoin wallets come in many different varieties often with trade-offs between ease of use, security and advanced features. Some are websites that simply offer the basic functions of sending and receiving bitcoins and attempt to make these functions as easy to use as possible. Others are fully-featured online bitcoin wallets that offer the user more power and control including advanced options such as custom transactions. Then there are bitcoin wallets that are desktop applications which tend to be more difficult to setup but offer higher security and more advanced features across the board. And digital wallets would be incomplete without a mobile strategy and there are plenty of mobile Bitcoin wallets targeted at this huge market. The list of options to choose from is daunting but we have done the hard work of narrowing the list from dozens to a few in this Bitcoin wallet review. First, ask yourself the question: Do I want a client I can download to my own computer, an online wallet interface, or a client for my smartphone?
If you are an avid Bitcoin user then you may wish to have two of the above or even all three. Once you have narrowed down your use case then look at the options available within each category. Do you want a client that offers more powerful features or do you want something that is easy to use? Perhaps you paranoid and want extra security?
In all three of the categories there are different bitcoin clients to suit various needs. But generally there is a cost of requiring a higher degree of trust in the provider. Blockchain is a hybrid between an online wallet and a desktop client and seeks to offer close to desktop-level security with the convenience of an online application. The client also offers a number of advanced options: the ability to download and backup your wallet to your computer or a printed sheet of paper, private key import and export, brain wallet support and an offline transaction mode are all available.