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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bitcoind and bitcoin-cli 'unrecognized', how can I access them from command line?

I have downloaded and installed the precompiled Bitcoin Core OS-X (also successfully synchronized). Every tutorial I have seen then directs one to begin using the executables bitcoind and ...
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1answer
24 views

Continuous integration setup using bitcoind regtest on travis-ci

Subtitle: travis-ci fails to run generate JSON-RPC method on regtest I'm trying to setup CI process on https://travis-ci.org platform to install bitcoind and start new blockchain using regtest mode. ...
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32 views

There is something which to help bitcoin? [on hold]

exist anything idea that we help bitcoin ? example i think must will create many services which will be legal and won't ponzi or scam . you can tell me legal idea that will be fine for people and ...
2
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1answer
35 views

Bitcoin Core V 0.10.0: Is there a way to force send when not synchronized?

My Bitcoin Core is not yet synchronized, but I already attempted sending a transaction, so now it is 'conflicted'. I can see this conflicted transaction is not being propagated. Is there a way to ...
2
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1answer
35 views

Why it is not possible for a payee to verify double-spends of the coin?

I'm reading Bitcoin paper of Satoshi Nakamoto (https://bitcoin.org/bitcoin.pdf). It says: Each owner transfers the coin to the next by digitally signing a hash of the previous transaction and ...
3
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1answer
51 views

Why does wallet.dat differ after running?

What information is exactly saved inside the wallet.dat file? When I run the bitcoin daemon, then stop, then compare the new wallet.dat file with the old one, the binary files differ, although I ...
2
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1answer
30 views

Is there a way to find how many nodes are there?

As a single bitcoind node I can only detect how many connected peers I have. Is there a way to have a vision of the whole bitcoin network?
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1answer
20 views

How to spend bitcoins From Account and specify Fee

I am writing an application that uses bitcoin wallet accounts to specify what addresses belong to what user. I have been reading the documentation trying to find a way to spend Bitcoins specifying the ...
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1answer
30 views

Receive money in regtest mode

I am working on a app in which my project communicates with the bitcoin server to get the details of a transaction with transaction id as the parameter. I have bitcoind, bitcoin-cli and bitcoin-qt ...
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1answer
24 views

Bitcoind server connection [on hold]

I have successfully installed bitcoind and bitcoin-cli on my windows PC (running testnet). I now have a locally networked computer running Debian, which is also hosting a web server. I am trying to ...
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1answer
18 views

How fast is BitcoinJ for getting UTXOs(/UnspentTXOuts)?

I'm making an app where I need to be able to get unspent TX outs very quickly for addresses I do not know beforehand. Now this is supported by Bitcoins architecture in that you can have a pruned ...
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8 views

how to get confirmed balance for bitcoin testnet server? [duplicate]

I can't get confirmed BTC from https://tpfaucet.appspot.com/ server. Tried many address and can't get balance with confirmation. for that reason my testnet server balance is always 0.0 ...
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15 views

what is the bitcoin.conf for testnet3?

I need to use bitcoin testnet3 server for testing via php. bitcoin.conf rpcuser=bitcoinrpc rpcpassword=random string testnet=1 create JsonRpc object with easy bitcoin: ...
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1answer
17 views

testnet server won't get any btc from TP's TestNet Faucet. what is the reason?

I have generate bitcoin address from testnet server. but I can't get any btc in those address. i tried many times and I failed. can anyone explain me that is the reason? whay i can't get btc on ...
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1answer
21 views

Trying to send Bitcoins from testnet to my regtest node

I send bitcoin regtest server BTC to other bitcoin address of same server. I sent 5 BTC but it shows 50 BTC of that account's associated address. It received 5 BTC. What's the problem with this ...
0
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1answer
41 views

how to use bitcoind jsonrpc for regtest or testnet server in php?

i used bitcoind with jsonrpc service. but i added regtest=1 in bitcoin.conf at .bitcoin folder. used: bitcoin-cli -regtest generate 101 bitcoin-cli -regtest getbalance 50.00000000 ...
2
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1answer
30 views

How do I prevent Bitcoin from synchronizing?

I have a script that uses Bitcoin's RPC interface and takes a lot of CPU to run, and I don't want Bitcoin to be verifying blocks while I do it. Is there a config setting or an RPC call I can use to ...
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2answers
152 views

Quick way to find transaction

I am running bitcoinqt on my server. Each second, I use a .NET API to query the daemon to find new transactions which contain needed addresses. (The addresses are not from the local wallet.) So, ...
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1answer
26 views

paytxfee vs maxtxfee which one overrides the other

In wallet options section it shows these two settings -paytxfee=<amt> Fee (in BTC/kB) to add to transactions you send (default: 0.00) -maxtxfee=<amt> Maximum total fees to use in a ...
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1answer
58 views

bitcoin compile error on CentOS 6.6: ‘SIZE_MAX’ was not declared in this scope

I am trying to run a bitcoind instance (branch 0.9 from git repository) on CentOS 6.6 following this guide but I get this error when building LevelDB: Building LevelDB ... make[3]: Entering directory ...
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0answers
27 views

listtransactions returning duplicate transactions with category “Send” & “Received” both

I am facing serious problem in listtransactions call. I am getting duplicate transactions with "send" and "Received" category. For I have sent some bitcoins from 31zeoskE8zeyQARFEVzwJzsp7GQpLn5zhF to ...
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1answer
66 views

Bitcoin how to get X value from Y

How to get X value from Y? ECDSA x,y coordinate validity verification doesn't seem to work X = 0x79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 Python code, p = ...
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2answers
34 views

Ubuntu - Show active connections?

How can I see how many active connections there are on Linux?
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33 views

How to get receiving transaction information from bitcoind (bitcoin server)

I installed bitcoind on a vps and generated an address I sent some bitcoins to from Blockchain.info wallet. One day later, I still don't see any info about it in bitcoind while there are now 75 ...
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1answer
20 views

Connecting to a bitcoind in “-regtest daemon” mode remotely from another node (e.g. BitCoinJ)

Anyone knows how to connect to (or even possible) a remote "-regtest" server? I have managed to setup the -regtest daemon, but still trying to figure out how to connect to it using BitCoinJ client. ...
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39 views

Trying to restart bitcoind when it dies

I am trying to have Monit monitor my bitcoind process because it crashes a lot ever since the spamming has begun. I have this in my monitrc file: check process bitcoind with pidfile ...
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2answers
76 views

Broadcasting an OP_RETURN transaction

I am facing two problems below, First is that I am trying to broadcast transaction which have OP_RETURN but blockchain.info continuously rejecting it, though I have broadcast it using bitcoind. ...
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1answer
15 views

Vanitygen Rekey_max

The file 'vanitygen.c' has a constant "BN_ULONG rekey_max". I suppose it denotes the value until which vanitygen keeps using the same RNG seed? If the value is lowered to about, say 100K, will it ...
0
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1answer
63 views

Do the keys that are derived from a BIP-32 HD wallet depend on an initial seed?

I did not understand the concept of a seed in BIP0032 that well. Would you mind telling me do the keys that are derived from a key tree of Hierarchical Deterministic Wallet (HDW) depend on a root ...
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67 views

Need help with bitcoind “ zapwallettxes ” routine

It all started when I tried to make a couple of payments via bitcoin. The transactions just would not confirm. After doing some reading I saw that " zapwallettxes " would supposedly dump the ...
2
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1answer
37 views

Does bitcoind accept batch RPC calls?

Am currently sending RPC calls to bitcoind in Python3 in series using JSON: import json, requests def pull(command, foo): headers = {'content-type': 'application/json'} payload = ...
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0answers
21 views

How to use bitcoind with CUDA-ready box?

I am not asking for mining (which is all the information I could find on the net). I am asking for the regular bitcoind daemon, looking for having a full node with a reasonable high performance per ...
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1answer
64 views

Are there any Python modules that decode raw transaction data?

I'm currently doing RPC calls to bitcoin-cli within python to get raw block data: bitcoin-cli getblock BLOCKHASH False I've already written a function that cuts off the block header and splits the ...
0
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1answer
60 views

what is the best software based solution to secure the private key in Bitcoin

Would you mind telling me what is the best introduced approach to secure the private key in the wallet and a transaction which is done using Bitcoin? I do not want to use a separate hardware, I am ...
0
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1answer
25 views

Command to get the last block received in Bitcoind

Is there a Command to get the last block received in Bitcoind ? I'm interested in the DateTime it was received to the wallet
2
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1answer
65 views

Does an OP_RETURN script always need another output within the transaction?

I was reading this: Explanation of what an OP_RETURN transaction looks like and I wondered if the second output "value" : 0.00200000, was at all necessary. Can I just have a OP_RETURN with a 0 output ...
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2answers
77 views

Possible to speed up reindex?

I just reindexed a node that was already synced (in order to enable txindex); it took around 9 hours. It's on a pretty good system: 16G RAM, i7 with 4 physical cores. Storage is a weak point, with ...
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1answer
99 views

How does the bitcoin network recover in case of a hash collision in the block hash?

A Bitcoin client has to download the whole blockchain from the P2P network in order to become a full node. A full node is able to determine, if a transaction in the network is valid or not. To ...
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1answer
183 views

How to migrate wallet from namecoin to namecore?

Today I updated namecoin by building the new "namecore" reimplementation but when starting namecoind I got this message: Error opening block database. Do you want to rebuild the block database now? ...
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18 views

Node doesn't “printtoconsole” as prescribed?

I've written a script that shall start 6 nodes with -printtoconsole simultaneously on regtest but somehow after executing ./script.sh, each time, all nodes start ("Bitcoin server starting") except ...
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24 views

Bitcoind writes complete wallet.dat regularly which is a problem, what can i do?

i have troubles with my system, using iotop i identified bitcoind as the source of problems. I am running bitcoind of bitcoin-0.10.0-linux32 and am using the RPC calls of bitcoind. My wallet file is ...
3
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1answer
44 views

which transactions does bitcoind validate?

which types of transactions does bitcoind v0.10 perform checksig validation on? blockchain transactions belonging to a wallet with known private key blockchain transactions belonging to ...
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36 views

how do I send my imported wallet on electrum

I have been able to transfer my bitcoin to electrum but am facing hard time to pay it or send my coins. A form appear and I fill out and there is only two option to choose to click create unsigned ...
2
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1answer
39 views

sendrawtransaction without downloading blockchain

Is it possible to use sendrawtransaction without downloading the blockchain? Or will bitcoind reject the broadcast since it can't validate the inputs? If the client does block it by default, is there ...
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1answer
58 views

How to save your bitcoins to avoid gambling [closed]

I am a bit addicted to gambling. Whenever I receive any amount in my blockchain wallet, I play on it and always lost it. Suggest some ways to save and avoid gambling.
2
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1answer
78 views

watch-only wallet with bitcoin-cli

i'm trying to see all tx hashes and the balance for an address i don't own: $ bitcoin-cli importaddress 1M43pksKTGpBd8J8XzjStjgnX5vie1kpYA $ # wait 5 minutes while bitcoind presumably scans all txs $ ...
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61 views

Transaction broadcasted to the Bitcoin network but not in my mempool

I use armoryd (0.93.1) to send transactions in the testnet Bitcoin network with the three calls: 1. createustxtoaddress 2. signasciitransaction 3. sendasciitransaction The calls are all successfull, ...
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24 views

How to allocate hash power to an instance of bitcoind?

I'm not sure if those questions were asked this way before but ...: Is it possible to allocate CPU resources/hash power to an instance of bitcoind run on regtest?If yes, how? Assuming I'm going to ...
0
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1answer
57 views

bitcoind (JSON-RPC) returned HTTP 403 error, i don't know why

I set up bitcoind in Ubuntu 14.04 and I requested "getinfo", but returned HTTP 403 error "FORBIDDEN". I don't know why... The environment is below.. ・Ubuntu is installed in Virtualbox and bitcoind ...
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1answer
18 views

Automatic savings account using 2 wallets?

Sorry if this has already been asked; Stack Exchange didn't have this exact question in the "related" field. Let's say I have two bitcoin wallets. Somebody sends wallet 1 a transaction of 0.5 BTC. ...