Questions tagged [bitcoin-core]
Bitcoin Core is a full node implementation of the Bitcoin protocol with a wallet and GUI. Bitcoin Core is a MIT-licensed Qt 5 GUI application for the original Bitcoin codebase. Additional/previous names include "Bitcoin-Qt", "Satoshi-Client", and "Standard Client". This tag should be used when referring to the Bitcoin Core software.
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Bitcoin-qt Not Syncing with errors [duplicate]
My bitcoin-qt (on ubuntu installed via the PPA) just plain won't sync. It's been running for days and no/little progress past ~82256 blocks remaining...
I've also got an error displaying "Warning: ...
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How to access Bitcoin's transaction database?
I want to process the Bitcoin network's transactions. As I understand it, the Bitcoin-Qt client downloads and stores all that information locally.
Since version 0.8 LevelDB has been used to access ...
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When do I have to backup wallet.dat?
Is it obligatory to backup wallet.dat after each outgoing transfer?
I understand it is, but not after each incoming transfer.
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Does the Bitcoin Qt client have a minimum transaction fee?
I'm trying to transfer all of my 0.1 BTC located in one wallet to another wallet. I don't care how long it takes to finish, so I'd rather send it without paying any transaction fee. I'm new to this, ...
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Why do first bitcoin transactions receive most confirmations?
My very first Bitcoin transaction has 740 confirmations, the next have 239, 212, 70, 43, 5, and 5, respectively. Is this just because my first transaction has had more time to get more confirmations, ...
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Bitcoin-Qt listing all Transactions as occurring at same date and time
Any ideas about this one? I've imported addresses into my wallet and on rescan, all transactions come up as same date and time?
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Block data error, reindexing blocks
Bitcoin QT finished syncing this weekend after d/l for Windows 7 on Thursday.
Today, probably 2nd or 3rd time running it, an error came up right away that index could not be found.
What would cause ...
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How much time does it take for the bitcoin-qt window to show up in OS X 10.4?
I have downloaded Bitcoin-Qt for Mac yesterday. I understand that it takes a while to "synchronise" but this site says one can access it whilst this process takes place. I have the Bitcoin in my ...
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How to export an encrypted non-seedless electrum wallet into bitcoin-qt?
How to export an encrypted non-seedless electrum wallet into bitcoin-qt?
Is it even possible?
Cheers
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transaction creation failed
I am using bitcoin Qt
version v0.7.0-beta and when I tried to send a transaction (1.5 bitcoins) I received a message
transaction creation failed
what can be the reason? Few minutes ago I sent 0.1 ...
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Data directory issue
I have everything set up normally. My only issue is that my data directory is in C:\Users\User Name\AppData\Roaming\Bitcoin.
Normaly this is what you would want, but, if you noticed, my username has ...
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Why would Bitcoin-QT attempt to charge a processing fee, when I have my transaction fees set to zero? [duplicate]
I'm attempting a test transaction of an amount less than 0.0015 BTC with my transaction fee set to 0 BTC, yet I'm getting this message:
The total exceeds your balance when the 0.0015 BTC ...
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How to set Bitcoin-Qt setgenerate mining recipient?
I know it's inefficient and a bad idea and all that, but I just discovered the setgenerate console command in Bitcoin-Qt (v0.8.1-beta, MAC) and I was wondering how to set the recipient address of "all ...
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Importing a backed-up encrypted wallet.dat
I have bitcoin-qt-0.8.1-beta installed on a computer. I also have another computer in which I'd like to share the same wallet.
First, for backup purposes, I have exported the wallet into a backup ...
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Easiest way to control a remote bitcoind instance?
What's the easiest way to control bitcoind running on a remote machine?
I'd like to make transfers, manage my wallet, etc, and ideally I'd like to do it using a UI such as bitcoin-qt. Unfortunately ...
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How to turn off "change" address in bitcoind?
I would like to keep backup of my wallet on paper, but that's impossible or at least impractical when the bitcoind keeps creating new addresses for "change". I know it is possible in theory to do it ...
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Why do I need my password to generate a new receiving address in bitcoin-qt?
I heard that the wallet has 100 of the next receiving addresses already. Shouldn't I be able to get one of those without unlocking it?
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Older Clients & Wallets
I have about 5 BTC stored in Wallets created under different versions of Bitcoin, all encrypted with multiple backups.
I downloaded latest Client and it doesn't work with the wallets, I've gone back ...
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Bitcoin-qt Wallet empty
I just reinstalled Bitcoin-qt and exchanged the new wallet.dat file with my old one. The Address for receiving coins is shown correctly in Bitcoin-qt but the balance is 0.00 BTC. The Block chain is up-...
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How to activate the mining process in the standard bitcoin client?
I have done the whole synchronization and now it should be mining bitcoins from what I understand but I don't see anything showing that it is actually mining for bitcoins nor any activity from my cpu… ...
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How to increase the speed of synchronisation?
What ways are there to increase the speed of synchronisation of the network, assuming the use of the main Bitcoin client?
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Bitcoin Client - How do I find the destination address of an incoming transaction?
I'm mining Bitcoins and have multiple incoming addresses in my bitcoin-qt wallet.
When I get a payout for mining in the "Transactions" tab it shows the amount of BTC I received and the type is set ...
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Bitcoin-Qt setup: Change block-chain file location, settings? documentation?
I am installing Bitcoin-Qt and have been reading about Bitcoin basics, but I found very little information on the client. I have a few questions about the Bitcoin-Qt program (v0.8.1-beta under Windows ...
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getrawtransaction error? [Code -5]
I'm trying to read raw transactions but there is a problem; Seems like getrawtransaction only works for recent transactions, old transactions give me the next error:
No information available about ...
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How do I recover an encrypted bitcoin wallet to which I don't know the password? [duplicate]
My husband died recently. He had a Bitcoin-Qt wallet with some bitcoins. I don't know the password and the wallet is locked and encrypted. Is there anyway to regain access to the wallet?
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Can the transaction log history size scale?
Four Reasons You Shouldn't Buy Bitcoins, Forbes.com:
Scaling. The Bitcoin protocol requires that every node in the network
download a copy of every Bitcoin transaction that has ever occurred.
...
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Is bitcoin-qt as PPA really secure? How to proof?
With Bitcoins being that much worth currently, I came to the conclusion of using a unique old computer just for this "use case".
I would like to run Ubuntu with bitcoin-qt (from PPA), but now the ...
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What are good ways to storing backup of an encrypted wallet?
What are good ways and places for storing backup of an encrypted wallet?
When somebody open encrypted wallet what all can he do when he does not have a key?
asuming that the key to the wallet is e.g. ...
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Saved .bitcoin directory full ~9 GB block data, won't work when copied to another system
I had to delete my .bitcoin directory in Ubuntu 12.10, after months of getting the near 9 GB of blk data files.
I copied everything over to another machine (and back to the original too) and it gives ...
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How to move the blockchain data while still being able to use the wallet?
Using the standard client, Bitcoin-Qt, v0.8.1: (win10x64)
I would like to move the blockchain data from its default location to a different location (maybe even an external disk or NAS drive). What ...
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Bitcoin Transaction Unconfirmed [duplicate]
I made a transaction on March 13th, transferring .88 BTC from my desktop wallet to another account. I have a Mac and am using Bitcoin-Qt version v0.8.1-beta. The transaction did not go through, my ...
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How to update balance of imported address in electrum
Imported an address into electrum, but the balance of the address shows up as zero.
Checked the address on http://blockexplorer.com and it's not zero.
The address was imported from bitcoinqt when ...
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bitcoin beginner, i have a few questions [duplicate]
I have a few questions about bitcoin and trying to wrap my head around it.
1) If people can generate bitcoins out of thin air on their computer how does it not mess with the value of the bitcoin?
2)...
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Bitcoin wallet/address balance confusion
I'm quite new to bitcoins so apologies if i'm being a noob, but I'm very confused!
My bitcoin-qt wallet balance says I have 2.0113406 BTC (which is what I expect).
Now if you check my transaction ...
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Synchronising with network
I'm completely new to Bitcoin but finding it all very interesting so far! My Bitcoin-qt wallet has been synchronising for literally days now (2 days actually) but it is getting closer, on 91% now. My ...
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Wallet.dat can contain only 100 private keys even if I back up?
Considering the Bitcoin client for Windows 0.8.1:
So the best way (if I have already used up 100 keys) is to send bitcoins to different wallet and then to newly generated one?
When I want new keys, ...
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Manual for Bitcoin-Qt on Mac OS X
Is there a manual for Bitcoin-Qt on the Mac OS X?
Specifically, I'd like to move my wallet.dat to a different folder (a TrueCrypt volume) and if/how I may configure bitcoin.conf so that the ...
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"Failed to read Block"
I encountered a error whilst downloading Bitcoin-Qt on my Macbook version 10.6.8; it says "Failed to read block"
How do I fix this error without losing the bitcoins currently in my wallet?
Your ...
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bitcoin-qt v0.7.2-beta qt version 4.8.2 is FROZEN/CORRUPT? [closed]
It keeps telling me at the bottom of the screen that the displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade. Can anyone help me please?
i am using ...
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I ran out of space while synchronizing, how do I get my private keys & find my balance?
OK, my most immediate concern is that I made three ~$500 bitcoin purchases this weekend and downloaded the Bitcoin-Qt client, but ran out of HDD space just before it finished synchronizing the ...
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What does "Reindexing blocks on disk" mean?
When I upgraded to 0.8.1, it said Reindexing blocks on disk and it took about four days (Grr). But later, it said something about a corrupted database and it had to do it again! What is it doing?
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How to receive transaction in bitcoinj wallet
I am a real noob with bitcoin and bitcoin. I have a lot of questions and I don't know where to start. Let me try.
I have a bitcoin-qt client and I downloaded the chain (took me one day) and now I am ...
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Open bitcoin-qt wallet with bitcoinj
I try to open the bitcoin-qt wallet with bitcoinj, I write this code:
private static final File WALLET_FILE = new File("C:\\Users\\Bapt\\AppData\\Roaming\\Bitcoin\\wallet.dat");
public static void ...
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Bitcoin-qt database for BitcoinJ downloadBlockChain()
I am using bitcoinJ to develop a bitcoin based payment module for my project. I have the complete block chain downloaded/in sync with the network on the bitcoin-qt client.
Is there a way I can use ...
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Mac 0.80b beta - says "database corrupted" and then Bitcoin-Qt quit unexpectedly
I can't run Bitcoin-Qt 0.80 on Mac OS X 10.8 any more.
It starts up then says "System Error: Database Corrupted". I then click OK, and the program "quits unexpectedly"
How do I start again without ...
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What is "failed to read block" and how can this be fixed? [duplicate]
When I try to open my BitCoin wallet, I get a "failed to read block" message and it will not open. What does this mean and how can this be rectified?
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technical question: receiving wallet.dat error
I have ~5 BTC on an old laptop (Windows 7) and I tried moving the balance to another client. At first I tried moving about 0.1 BTC just to see what would happen. The client debitted the balance but it ...
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Does the satoshi client always send the change of a transaction to a newely generated address?
Experimentally, this seems to be the case, but is it always like this or depends on some details?
Also, does it generate a new address each time this is done, or first searches the wallet if there is ...
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Securing a wallet and multiple addresses
I am trying to understand Bitcoin QT. Sorry for the questions.
If I create two new addresses, then encrypt my wallet and then create a third new address after the encryption process, are all three ...
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Lost my wallet password. Is there anything I can do? [duplicate]
I lost my bitcoin wallet password, it was stored on a USB and I've lost the usb. Luckily I have a backup of my wallet. Are there any way possible I can get my coins back? Is there a bitcoin wallet ...
