bitcoind is the command-line interface for Bitcoin. It stands for "Bitcoin Daemon" where a daemon is any computer process which runs in the background ("service" in Windows terminology). bitcoind connects to the Bitcoin network and passes transactions, updates the block chain, etc.

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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 ...
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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 ...
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1answer
9 views

How to getreceivedbyaddress() with the python-bitcoinlib?

I'm trying to use the python-bitcoinlib in my bitcoin project. I now understand how I can send a payment, but I can't find anything similar to the getreceivedbyaddress() command I normally used. ...
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1answer
26 views

How to enable wallet encryption from a command line?

Which command should I use to encrypt previously unencrypted wallet from a command line?
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1answer
36 views

Is it possible to retrieve bitcoin address?

I have Bitcoin daemon running in Amazon AMI, i have some balance in my bitcoin wallet, suppose i re-install os/daemon, is it possible to retrieve those balance what happened to that bitcoin ...
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26 views

Send bitcoin automatically without blockchain

How to send bitcoin from my address to another one without updating or using blockchain on Bitcoind ? I want create PHP Script that do it automatically when someone pay invoice and he will receive ...
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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: ...
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1answer
33 views

How to stop a hacker stealing my bitcoins?

I purchased a game script from a guy. I think the same guy is stealing my bitcoins. I need help in stopping him. The guy also installed the script on my server and set up the bitcoind wallet too. The ...
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1answer
24 views

How can I ensure that bitcoind does not use unspent outputs for a given address?

With RPC calls to bitcoind, from separate (python) scripts, I'm: calling getnewaddress to set up a new key pair for a 'special' address, assigned to a distinct account (let's call this ...
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2answers
21 views

What kind of random numbers source does getnewaddress in Bitcoin Core API (bitcoind) uses?

Is it an internal PRNG? Is it fed from /dev/random or /dev/urandom? How secure is it? If I have a hardware (TRNG) plugged in feeding my /dev/random will this source of entropy get used by bitcoind?
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1answer
119 views

How to upgrade Bitcoin daemon in ubuntu 12.04?

I am currently having Bitcoin daemon version 0.9.0 and bitcoind getinfo shows error like "Upgrade required" { "version" : 90000, ... "errors" : "URGENT: Upgrade required: see ...
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13 views

getreceivedbyaddress without knowing the private key

Not considering any external services, is there any way (opensource implementation) that would keep up with the blockchain and expose an API with the same functionality as the original ...
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12 views

mining pcie 16x and 1x together caused rejects

I have 5 msi radeon R9 290 cards and this board https://www.asus.com/Motherboards/Z87PLUS/specifications/ . With 3 pcie 16x everything runs smooth but, as soon as I add the first 1x into the equation, ...
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33 views

What I'm doing wrong? PHP/RPC does not work (parse error)

I'm new to bitcoin in programming and I'm actually wanted to learn something by testing it on my local machine. So I've set up a webserver on my local machine and also installed bitcoin and started ...
2
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1answer
35 views

Check if wallet is encrypted or not through RPC API

How can one check if their wallet is encrypted through the RPC API without receiving an exception? I went through the Original Bitcoin client API calls list but didn't find any command that could ...
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3answers
129 views

Is there a way to run bitcoind without being a full node?

I want to be able to run bitcoind on a VPS I rented, but I neither have good bandwidth nor RAM so I do not want to be a full node. How would I go about configuring things so that I can run bitcoind ...
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1answer
49 views

How to get instant notification of any Bitcoin transaction involving a specific public address as recipient without knowing the wallet or private key

Everything is in the title... For instance, Blockchain can do this if you import a public address and you set up their notification mechanism. Is there a way to do this in an intelligent (=efficient) ...
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0answers
20 views

JSON/RPC works fine for bitcoind but not for litecoind

I have managed to set up bitcoind, connect to its JSON/RPC API and run the getinfo command. I followed exactly the same steps and configuration for litecoind (bitcoin.conf and litecoin.conf contain ...
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1answer
25 views

Bitcoind, Multisig, and the default account “”

I've been attempting to do transactions to and from a multisig address for a couple of days, but I'm finding that my default account "" keeps paying for things, even though I'm explicitly saying other ...
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1answer
47 views

How do I use walletnotify?

I have bitcoin daemon and how want to use the walletnotify option with a json-rpc call. Some of the examples use a "transaction.sh" file for walletnotify. What is it for? What do I have to write in ...
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2answers
39 views

Get a programmatical notification when an address receives a transaction [duplicate]

I am experimenting building an in-house Bitcoin payment system. What is currently the recommended practice to get notifications to your web server when a certain Bitcoin address receives a ...
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1answer
164 views

Minimal system to run a full Bitcoin node: Netbook? Raspberry Pi? etc

I want to build a low profile system running as a full Bitcoin node, i.e. just running Bitcoin Core 0.9+ and pretty much nothing else. What is the minimal system (in terms of power consumption) that ...
5
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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 ...
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2answers
25 views

Listening for changes to my own wallet in the blockchain

I would like to be notified of changes to any of my many wallet address as soon as they happen and then programmatically take action. I have been using wallet notify but this has been giving me really ...
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1answer
74 views

How to validate raw transactions using bitcoind and/or bitcoin-cli (preferably offline)?

I've been wanting to join in the fun on this Bitcoin transaction contest but while I'm comfortable enough working out the scripts themselves and playing with the web-based tools suggested, as a ...
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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
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1answer
59 views

How much space needed to run Bitcoin daemon in amazon AMI?

How much space needed to run Bitcoin daemon in amazon AMI(ubuntu 12.04), I am currently having 20GB is that enough suppose i want to run multiple coin daemon say 6 coin daemons how much space(approx) ...
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1answer
58 views

is Bitcoind -gen solo mining ?

I am running "./bitcoind -daemon -gen" in my machine . Is it solo mining ? If so, what does it take to create 1 bitcoin ? When i run "./bitcoind getbalance" it is always 0.00000 . "./bitecoind ...
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35 views

Bitcoin-RPC PHP: It just dawned on me, should i be json decoding arrays returned from the client?

My question is should i be using json_decode() to decode the arrays prior to using them in php? here's an example: public function CheckAddress($address) { $truth = ...
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2answers
84 views

How to install litecoin daemon in AMI

I have cent os in my amazon ec2 instance i try this post to install litecoin daemon after done compilation and run ./litecoind gives the following error litecoind: key.cpp:134: ...
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1answer
52 views

Installing ripple coin daemon and Ripple coin-QT in ubuntu gives error

I install ripple coin from Github as I did for other coins. On cloning rippled rippled from Github, I can't find files under rippled as I found for other coins. I can not find much information ...
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13 views

How to display price of one Bitcoin on website in PHP? [duplicate]

Firstly, I know this is a duplicate post but from what I can find all of the others are using the MtGox price (redundant now). I was wondering - what is the current best way to display the price of ...
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1answer
85 views

BlockNotify/WalletNotify - but without the console window

I use the walletnotify and blocknotify config options on bitcoind to have the server call two executables on new transactions/blocks. This all works fine. The two executables (Windows executables) are ...
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11 views

How to obtain the longpoll url using jsonRPCClient

I'm trying to find the longpoll url for my pool. I've found documentation saying that it is within the headers but I'm unable to see anything. Is there any way to retreave the url via an RPC request? ...
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31 views

Which wallet is better and secure?

Which wallet is better? A conventional wallet or A Hierarchical Deterministic wallet in case of more number of users accessing the wallet?
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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 ...
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33 views

RPC error when sending withdrawal(PHP)

Same problem i had previously, but a bit different. here's my script if you can help. EDIT: OH BOY do i feel dumb. i went into the json rpc client file, and made it print r the response. below was ...
2
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0answers
43 views

Historical prices via API for major alts (not BTC)

I am trying to build a small project of mine using historical prices for major alternative currencies such as LTC, DGC, MOON, TIPS, etc and so far I managed to collect only current prices of cryptsy ...
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1answer
71 views

Is it possible to monitor all crypto-coins?

Different coins have their own blocks and wallets, I want to build application to support multiple coins and my questions is Monitoring all coins possible(view transactions, get balance etc)?
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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, ...
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64 views

Bitcoind -walletnotify more than 6 confirmations?

I've configured bitcoind -walletnotify to run php script when callback is triggered. It works fine, but only notify until 3 confirmations are received. My goal is to notify when 6 confirmations are ...
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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?
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0answers
20 views

Block format validation against the Testnet bitcoin network

I was wondering if there is a tool which I can use in order to see if I'm generating blocks properly in my client. This is a block generated by my client in hex format(with just coinbase): 02000000 ...
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1answer
31 views

How do you make json-rpc calls in PHP dynamic?

I am using the easybitcoin.php script here: https://github.com/aceat64/EasyBitcoin-PHP When making a json-RPC call, such as: print_r($<username>->getbalance($_SESSION['username']) ); You ...
2
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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 ...
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1answer
48 views

Bitcoind need blockchain to sign transaction

I'm trying to sign a transaction using bitcoind via rpc. Here is the request I send. signrawtransaction ...
4
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1answer
158 views

Coin address generation for all coins

We are developing UI for coin trading. We have a plan to use all the coins present in coinmarketcap. I am greatly confused how to generate coin address for all coins. I knew that from cryptsy.com, it ...
2
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2answers
165 views

Can I make and host bitcoin wallet in my own website to get rid of using 3rd party wallets

I searched a lot about it but didn't get a proper answer I want to build my own bitcoin wallet and host it on my website for my personal usage and other visitors use. If someone know that how to do ...
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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 ...