Questions tagged [client]

This tag should be used for questions regarding Bitcoin clients. A client is any application which allows a user to connect to the Bitcoin (or alternate) network. Alternately, "client" may refer to a non-standard user interface which interacts with the Bitcoin network through a standard client.

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1answer
1k views

Sending my Bitcoin cash using my private key

This question has probably been answered many times but despite my efforts I cannot find a solution. I have several Bitcoin (BTC) addresses for which I hold all private keys. These addresses now also ...
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1answer
178 views

What do I support with Bitcoin Core Version 0.14.2

At the moment I'm following the discussion about BIP-141, BIP-148, SegWit and SegWit2x (NYA). But I'm confused. I'm running Bitcoin Core Version v0.14.2 as a full-node. It's currently downloading the ...
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1answer
307 views

When do I get paid when mining with eligius? [duplicate]

So, i'm trying out mining with a mac and i'm not asking whether mining is possible, my question is is it actually even possible to make a minimal amount of bitcoins. I hear people saying that mining ...
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1answer
626 views

What are the advantages of running a full node in comparison with a lightweight client?

I read that running a full node provides "more security" than running a SPV client. What does this concretely mean? I think I understand pretty well how those two kinds of nodes work but I do not see ...
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1answer
1k views

Transactions confirmed on Blockchain but nothing received to my Blockchain wallet

I need some info/help. I have sent some Bitcoins to my Blockchain wallet. They have all be confirmed and done with. But it has been 2 days now and nothing has shown on my wallet. This is the ...
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1answer
332 views

sign and verify a message in Bitcoin Core 0.13.1 (OSX)?

as a follow up to here: Verifying a bitcoin trx on the Unix cmd line with OpenSSL? and here: How does the ECDSA verification algorithm work during transaction? I use the pizza trx, and verify at ...
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0answers
202 views

Library ZMQ to Java does not work

I am trying to connect to a bitcoin node using the ZMQ library for Java. the problem is that when I try to receive a response the code remains frozen. Returns nothing. This is my code: public class ...
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0answers
37 views

How can I start to mine? [duplicate]

I want to begin to mine on a computer, I know that it is not efficient but I want to do some experiments and tests for a project. I tried all programs in the list https://www.bitcoinmining.com/...
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1answer
662 views

Creating a virtual wallet to display balance in a store

I have a store that uses bitcoin as a payement. I want to make users deposit to their balance in the site, as I saw in many sites, a bitcoin address is generated for each user to deposit funds to it,...
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1answer
244 views

Move MultiBit from Mac to Windows

I'm an IT consultant in Australia and I'm pretty green when it comes to BitCoin and wallets and the like. I've been contacted by a client with a MacBook Pro that cannot be repaired and he is looking ...
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0answers
28 views

How do i transfer bitcoins from bitcoin qt to multi bit? [duplicate]

Im very new to this so forgive me. I downloaded bitcoin qt and after 16 hours there was no progress whatsoever with this 'blockchain' stuff. I bought some bitcoins to send to the bitcoin qt client. ...
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1answer
76 views

Test failure for Multibit on Windows

I am trying to compile Multibit on Windows: Windows 7, IDEA 13.0.2, Maven 3.0, Multibit 0.5.16. I am able to compile, but when I try to test there are always 2 failures: Running org.multibit....
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1answer
72 views

how to get clients sync status via API

I try to use the build in API by bitcoin client and I wonder how to get the sync status via API of a runing client.
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1answer
179 views

Running poclbm miner in Ubuntu 13.04 without ATI card

I am running Ubuntu 13.04 64bit with 16GB RAM and this is my VGA card: 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA ...
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1answer
579 views

cpuminer - what command line tools are required?

I'm trying to run cpuminer on my Mac, though cpuminer requires a lot of command line tools - such as curl, libidn, etc. What are all of the tools required, and what is the minimum version of each I ...
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1answer
552 views

Bitcoin core internal transfer problem

i have one big problem in bitcoin core internal transfer. to understand my question, please read my problem clearly. 1) Let me explain you by providing example. My one of the core account let's say "...
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2answers
135 views

Does the software to conduct a 51% attack exist?

I know that it would cost hundreds of millions of dollars to do a 51% attack on Bitcoin, but if somebody did that, bought the hardware, etc could Bitcoin Core or any other software be easily ...
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1answer
95 views

Is there a way to chain calls in Bitcoin core console?

Is there a way to chain calls in Bitcoin core client console window like this validateaddress (getaccountaddress "") instead of getaccountaddress "" validateaddress _address from previous call_
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1answer
696 views

Why coinbase doesn't address callback?

I am using PHP cURL to generate new address from coinbase. As per this documentation we get notification on the callback url when any transaction is made on the generated address. But I am not getting ...
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3answers
115 views

Vulnerability of Bitcoin Network

Hi all I was wondering if I am doin a wrong assumption here: Let's assume a dezentralized peer to peer network and the bitcoin protocol. If a full node changes a transaction within a block and then ...
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4answers
188 views

Where can I create a bitcoin address?

I wish to start mining but I could not since I do not have a bitcoin address. Where can I create this address?
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1answer
91 views

How safe is it for me to install Java on OS X 10.8 to use Bitcoin [closed]

I want to use the Bitcoin client Multibit, but to do so I will need to install Java which over the past six months I've only heard bad things about. So my question is: how safe is it for me to ...
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1answer
5k views

Bitcoin Client says transaction is unconfirmed for 2 days now [duplicate]

Possible Duplicate: How to debug a long “0/unconfirmed” status in the bitcoin client? I made a transaction two days ago, but blockexplorer.com doesn't show the recipient address. Also ...
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2answers
902 views

Can I change bitcoin core code for my node?

Bitcoin is working on some of sort of code. Now it is p2p network as well. When I am accessing network as a full node, I have to download the whole ledger first and then I can proceed. Where does ...
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4answers
401 views

Casino games using bitcoins [closed]

I have a new question about the ability to play and to use the bitcoin for that. Can one play online casino games using the bitcoin currency ? Thanks
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1answer
123 views

Gui shutdown: message in the terminal [closed]

I closed down bitcoin from the official gui client with File > Exit and the following message appeared in bash: ************************ UNKNOWN EXCEPTION bitcoin in CMyApp::...
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1answer
31 views

Finding my Bitcoin [duplicate]

Around 20 years ago I was watching ad and playing online short games and they mining me Bitcoin. Now I have the email address but I couldn't find any email regarding that. In my inbox only shows the ...
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2answers
66 views

Finding the current statements about bitcoin [closed]

Which of the following statements about blockchain are correct? A) A transaction is accepted once it is included in some block. B) A transaction is accepted once it is included in a block that is at ...
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1answer
377 views

permanent address [closed]

How can I set a permanent address wallets to send and receive? How can I find out in advance which address the coins will be sent? We have a community in MLM that pays membership of the coins. Upon ...
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1answer
669 views

First Time with Bitcoin

This is my first time bitcoin mining, not sure about it all and I have a few questions. They might seem noobish, but we all start somewhere and I doubt any of you were experts right when you started ...
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2answers
84 views

Bitcoin physical monetary equivalent

I've never really given it a thought till now, but do bitcoins have a guaranteed value in gold similar to physical currency(banknotes/coins)? As far as I know, the value of a currency is guaranteed ...
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1answer
344 views

"Needed Turnover" / "Missing Turnover" - How to get my money out?

Contact Information: contact@securitycrypto.info General information support: info@securitycrypto.info Support and online transaction search with full and detailed information: support@securitycrypto....
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1answer
207 views

How to transfer different cryptocoins from one daemon to another

How to transfer different cryptocoins from one daemon to another. I want to send currency from dogecoin to bitcoin, I think trading engine do such process. Can I implement such process across local ...
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1answer
71 views

Apple Removes Blockchain Bitcoin Wallet Apps from its App Stores [closed]

That Apple removed last wallet from their app store. Just wrong.... Guess more people will move to Android. Apple Removes Blockchain Bitcoin Wallet Apps from its App Stores http://www.coindesk.com/...
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1answer
88 views

Can you specify a recipient bitcoin address or an IP address when issuing a transaction

when issuing a transaction a bitcoin client could either specify a recipient bitcoin address or an IP address This statement was in "two bit coins at the price of one" paper, and I am really confused,...
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1answer
336 views

How to build a wallet in my computer? [duplicate]

Possible Duplicate: What software and skills do I need? I have seen on the wiki, there are too many steps (hard steps for a non-geek person) to build a wallet. Is there a easy way for a new non-...
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1answer
108 views

how can i get and manage my bit coin? [closed]

I really want to know how to get and manage my bit coin and how I can work with bit coin I also want to deal in bit coin and invest in bit coin.
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1answer
48 views

What should I do with my crippled Bitcoin Core? How can it be this unstable still after 10+ years?

Recently, I've had serious issues with my Bitcoin Core. I've installed old versions and reinstalled the new version and done everything to debug it, but it's just crippled. It either gets stuck ...
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1answer
114 views

Why do I need IP addresses in bitcoins, isn't I working with public address?

Sorry for that question, but please I would like to understand why should I have IP addresses as I can only communicate using the public address Sorry again but really I am confused
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1answer
1k views

bitcoin for my android app [closed]

I am panning to build an android app for my college cafeteria where student can buy coffee using bitcoin and the can recharge the bitcoin through some source(from college bank). please give me some ...
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1answer
479 views

Conflicting transaction in memory pool

A conflicting transaction has been detected in our memory pool. The transaction hash displayed below may change. https://blockchain.info/tx/...
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1answer
3k views

Is it possible to exhance bitcoins to real money? [duplicate]

Possible Duplicate: How can I change BTC into normal cash? If I sell things on the internett and using bitcoins, how can I get transfered the "coins" to real money?
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1answer
148 views

Would you buy a Neptune

I really value your opinion. My question is in yuor personal opinion would you purchase and wait for a neptune from KNC or do you think I can get something better for my value. This will be my first ...

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