Bitcoin-Qt is an MIT-licenced Qt 4 GUI application for the original Bitcoin codebase.

learn more… | top users | synonyms (1)

0
votes
0answers
23 views

Empty amount sent with bitcoind

i am usng JSON PHP to send money from my address to another one, He send the first time normally, tested with (0.002 BTC) And when i test second one, he send empty AMOUNT (0.0 BTC) and charge for ...
3
votes
1answer
46 views

Bitcoin Cold Storage Question

I am ready to put some of my BTC holdings into a couple different cold storage wallets. I went through the process already moving around a few mBits as tests, created the keys on an offline PC, sent ...
-1
votes
0answers
7 views

Bitcoind not make auto rescan [on hold]

There idea on how to make bitcoind do an auto RESCAN ? Because when i receive payment balance not updated automatically, there a way to be updated automatically when receive payment ? I use ...
0
votes
1answer
22 views

How can I use multi signature addresses with Bitcoin Core?

Using the instructions on the debug window, I created a multi signature address as below: addmultisigaddress 2 "[\"Adres1\",\"Adres2\"]" MultiSigAddres My understanding is that one needs the ...
1
vote
0answers
11 views

descriptions of the bitcoin-qt files

bitcoin-qt creates files under ~/.bitcoin/ in my file system. i know that the ~/.bitcoin/blocks/blk*dat files contain the blockchain, but what do the following other files contain: ...
-1
votes
0answers
28 views

Bitcoin-Qt & Bitcoind

The wiki states that the client and the headless client are now bundled together, however, when I downloaded the Bitcoin-Qt client, I cannot seem to get bitcoind to run via terminal. I tried to ...
-2
votes
0answers
11 views

Bitcoin-Qt & External Device

Can Bitcoin-Qt be configured to use an ASIC miner? If not, do I need to use other miner software such as bfgminer?
-1
votes
2answers
24 views

Bitcoin.conf & JSON-RPC options

What does it mean in the bitcoin.conf file when it states, "server=1 tells Bitcoin-Qt to accept JSON-RPC commands?" If all one needs to do to solo mine is type setgenerate true in the console, then ...
-1
votes
1answer
23 views

Bitcoin-Qt & Bitcoin.conf

Just confirming here ... Does Bitcoin-Qt require that I create a bitcoin.conf file in order to solo mine on my Mac? I created one after reading the wiki and placed it in Lib/AppSupp/Bitcoin but I am ...
0
votes
0answers
13 views

Bitcoin.conf & Connect=

When configuring the bitcoin.conf file, what should you put in connect= ? There are IP addresses listed here, so I removed the # sign and left them as is. I also entered my WAN address and my local ...
0
votes
0answers
13 views

Bitcoin-Qt & setgenerate true

Will Bitcoin-qt mine bitcoins if all I have done is downloaded and installed Bitcoin-qt, and typed in "setgenerate true" into the console? Are there other steps or configurations necessary? If so, ...
-1
votes
0answers
12 views

Bitcoin.conf addnode

What should I enter on the "addnode" line of the bitcoin.conf file? I removed the # sign and used the nodes provided on the template, but cannot verify is this was proper or appropriate. Please ...
1
vote
1answer
33 views

Just installed bitcoin, but it won't connect

Total newbie at bitcoin; long time Linux user. kubuntu precise 64: My first attempt was just to download it (a slightly older version than the one from the ppa below), untar it and run the ...
-1
votes
0answers
17 views

Heartbleed bug and Altcoins - Another question [closed]

In reference to the post: Heartbleed bug and Altcoins I have this questions to the answer posted there: Do you mean that if we created the coin.conf file for any alt coin wallet with this kind of ...
2
votes
1answer
37 views

How can I download the blockchain from own, trusted source?

I have two computers with two different bitcoin-qt wallets: Very heavy-weight desktop with a great internet connection. Less powerful laptop with relatively slow internet. I would like to download ...
1
vote
0answers
30 views

Can I download blockchain updates from somewhere?

I use Bitcoin only on rare occasions - say once every month. I want to avoid long waiting times for downloading and verifying blocks that consequently await me when I reopen bitcoin-qt. There are many ...
1
vote
1answer
28 views

How do I flush the keypool?

After the heartbleed vulnerability, I'm concerned that my private keys could have been compromised. I want to send all my coins to a new address with a freshly generated key. However, if I just ask ...
5
votes
1answer
76 views

Transaction refund address

In the what’s new in Bitcoin Core 0.9.0 notes there is a reference to a refund address. I tried to look it up in the forums and the wikis but I came up with nothing. How can I set a refund address ...
1
vote
1answer
27 views

Which wallet application lets you send to multiple output addresses with just 1 fee?

Which wallet applications lets you send to multiple addresses from one output? I'm looking to build a physical bitcoin kiosk faucet and was looking to see how I would avoid miner fees if i combined ...
1
vote
1answer
100 views

How can I create a new wallet on Bitcoin Core?

How can I create a new wallet on Bitcoin Core (Bitcoin QT)? I forgot my old password, so I can't create transactions using the old wallet. I don't have money on my old wallet, I just need to create ...
0
votes
0answers
12 views

including a conf file in util.cpp

i am including some code to generate a config file when anyone runs the qt wallet. its just like bitcoin, but a change from maxcoin. this is the code that i included in util.cpp ...
1
vote
1answer
52 views

Is change of Bitcoin address of an account possible?

I have multiple Bitcoin addresses in my Bitcoin Daemon, Which address will be used for receive transaction Can i change my default account address(mentioned in 1) to new one
7
votes
2answers
120 views

Transaction fees after 0.9 protocol update

As the changelog of bitcoind 0.9 tells, transaction fees should be greatly reduced. What are the implications of this? How were transaction fees determined before the change and after the change? ...
1
vote
0answers
65 views

Ws2tcpip.h and winsock2.h on Window QT Wallet

Been trying for the past few days but couldn't get it working, I already download the latest cryptopp library but its seems that maxcoin got some issue compiling If I qmake "USE_UPNP=-" ...
1
vote
1answer
44 views

Delete all wallet addresses

How can I delete all addresses from my Qt wallet without having to download the blockchain all over again from the scratch? I would like to find a bulk way to do it as there are a few thousand ...
-1
votes
2answers
63 views

Bitcoin URGENTLY Need Blocks Files - Download them from some Website [duplicate]

I have been doing this synchronization procedure (first time) in bitcoin-qt for over 85 hours and it only came to 31 Weeks Behind. Withdrawed from localbitcoins like 95 hours ago and obviously this ...
1
vote
2answers
59 views

Can anyone without knowledge of encrypted tech use bitcoin?

I am interested in registering online, however I haven't got any knowledge on encrypted language not even on software design or whatever it is called. Is it possible for a person like me to register ...
0
votes
1answer
43 views

Programming for/modding bitcoin-qt on Windows

In multiple places I've found methods of modifying or adding to the bitcoin-qt(or other coin wallet) source on ubuntu or osx, but how would I do this on a Windows machine? If possible, I'd like to be ...
0
votes
1answer
62 views

bonus for my friend

I have use for first time original bitcoin client. When I open show that account bilance is 1,000.0. Why this bonus of 1 btc? 2 question: -Now my friend try open client but his account bilance is 0. ...
0
votes
0answers
89 views

anoncoin-qt make error

I am getting the following error while installing anoncoin-qt. I am following the installation steps here. $ make cd /home/usr/anoncoin-d/src/leveldb && CC=gcc CXX=g++ make OPT="-m64 -pipe ...
0
votes
2answers
89 views

Bitcoin-qt data on external drive

I have done the instructions listed here: How to move Bitcoin data from Application Support on external drive [mac] It works fine for a flash drive connected the mac, but I wanted to have the data ...
0
votes
0answers
6 views

Crptoarbitrer gem shows infinity and zero to crptocoin exchanges

I am using Crypto Arbitrer gem for finding the price amount to buy and sell some coins. It is said that it supports (btc ltc nmc nvc trc ppc ftc cnc) the mentioned coins. But when i check it does not ...
-2
votes
2answers
60 views

How to start mining Bitcoin [duplicate]

I have a strong GPU, CPU, and enough RAM to choke a goat. I have installed BitCoin Core 64, and my wallet is (finally) synced. What do I do to start mining. Do I just leave the program running or do I ...
0
votes
0answers
28 views

Address generation of all cryptocoins

Bitcoin-ruby generates bitcoin addresses for bitcoin link. We are developing a UI which supports some more coins. How can we support generation of address for othercoins too(Ex. Dogecoin, Litecoin, ...
1
vote
1answer
78 views

Why bitcoind/bitoin-qt is imposing transaction fee?

Bitoind is imposing transaction fee on 0.0001BTC forcefully even though i have set the transaction fee to 0, please tell can i transfer the money to some address without fee?
2
votes
3answers
262 views

Is Bitcoin core V.0.9 not updated on PPA ppa:bitcoin/bitcoin?

Version 0.9 of Bitcoin-Qt just came out. When will ppa:bitcoin/bitcoin be updated? In the meanwhile, any steps showing how to upgrade are welcome!
0
votes
0answers
59 views

When compiling qt ld.exe: cannot find -ldb_cxx

When compiling bitcoin-qt on windows I get through qmake "USE_UPNP=-" bitcoin-qt.pro but when I run make -f Makefile.Release it returns ld.exe: cannot find -ldb_cxx which I am pretty sure is ...
1
vote
0answers
41 views

Submitted blocks get rejected on Litecoin testnet

I'm trying to submit blocks to the Litecoin Testnet, however everything gets rejected. I got my raw value as ...
2
votes
0answers
54 views

Bitcoind Performance for production usage

Lets say we have one instance of bitcoind running on the production server. And our exchange software/application interacts with it using RPC callbacks for: address generation withdrawal ...
0
votes
0answers
37 views

Cannot allocate memory

EXCEPTION: 11DbException Db::get: Cannot allocate memory bitcoin in ProcessMessage() Downloaded 250k blocks, now it won't run anymore i'm running ubuntu 12.04, I have 20GB HD and 1gb ram. any way to ...
5
votes
2answers
552 views

Is it possible to send coins WITHOUT importing private key?

I have a cold storage wallet that I periodically move funds into. I want to be able to send funds out of the wallet quickly. Right now, I have to keep a clean VM up with the full blockchain, then ...
0
votes
1answer
38 views

Qt client not exiting on Linux

I am running Ubuntu 12.04. When I close bitcoin-qt (or any of its derivatives, like litecoin-qt or dogecoin-qt), sometimes it does not completely exit. I then have to run killall -9 bitcoin-qt, or ...
0
votes
0answers
26 views

Number of transactions and transaction history doesn't match in qt

I am self mining some xencoins and using Xencoin QT v0.6.3.3-g069d718-beta. The number of transactions shown on overview page is 9 and the number of actual transactions listed under transaction ...
0
votes
0answers
15 views

how can i handle transferring bitcoins between address in my wallet with target-confirmation?

in my website i use bitcoin payment via bitcoind server can someone explain mechanism to make that via Bitcoin RPC API ? can i use accounts in bitcoin or what can i do to make accounts in my wallet ...
1
vote
1answer
38 views

Possible to use BlockChain.info and Bitcoin-QT synced?

I've used both BlockChain.info and Bitcoin-QT. Is it possible to use the same addresses on both? I don't have a incredibly large amount of bitcoins, so I'm not worried about it getting hacked into, ...
1
vote
1answer
234 views

Sent bitcoin with no fee, waited and bitcoins disappeared

I sent about $425 to an adress from my bitcoin-qt wallet and forgot to include a fee. So I googled and googled and waited around for 4 or 5 days for it to stop broadcasting but I get on my computer ...
0
votes
3answers
72 views

How can I send bitcoin from one address to another through the Bitcoin client/API?

How can I send bitcoin from one address to another via Bitcoin client/API ? There exist an API call called: sendfrom <fromaccount> <tobitcoinaddress> <amount> [minconf=1] ...
0
votes
1answer
39 views

cannot connect via 8333 port on website

MY bitcoind is on: http://207.12.89.181/ yet I cannot connect via any port, I've tried 8333 and 8332 any reason why? it's a ubuntu server. Im using that server to connect to from another server.
1
vote
0answers
38 views

how to run bitcoind server on a ubuntu 13.04 server

I am trying to host a bitcoind on my server so I can connect to it on my website, how do I install it, run it, update the conf file? this is on a server not a desktop
0
votes
2answers
60 views

Cannot connect to bitcoin-qt server

# server=1 tells Bitcoin-QT to accept JSON-RPC commands. server=1 # You must set rpcuser and rpcpassword to secure the JSON-RPC api rpcuser=bhhtufhrt rpcpassword=ferhrhh im trying to connect ...