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Questions tagged [bitcoind]

This tag should be used for questions related to bitcoind, the command-line software for Bitcoin Core. It stands for "Bitcoin Daemon" where a daemon is any computer process which runs in the background ("service" in Windows terminology).

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5answers
5k views

JSON RPC library unable to connect to bitcoind?

I'm able to connect to bitcoind using my command line and the process is running with the appropriate port but when I try to run it through XAMPP after using the JSON-RPC library (I used the PHP ...
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4answers
2k 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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2answers
1k views

Why could UpdateTip be taking so long?

It has been 10 days since I ran bitcoind. When I opened it yesterday, I waited for about 40 minutes during which I could do not much except for waiting because my computer became so slow (high CPU ...
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1answer
1k 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 but ...
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3answers
480 views

As a full node, does limiting bitcoind bandwidth hurt the network?

As the top answer to this post, Maximillian Laumeister claims: "IMPORTANT NOTE: If you limit the bandwidth of Bitcoin Core far below your actual upload speed, it can actually harm the Bitcoin network ...
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1answer
470 views

Is BitcoinJS under active development?

I love the idea of a powerful alternative to bitcoind, and especially the ability to subscribe on blockchain events and easily process them on the server side. However, I see the last activity on ...
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1answer
218 views

Newbie question, bitcoind installation doubte

I am not an expert of linux systems but I want to learn how to use it on a secure way. I have an vps with ubuntu and I installed bitcoind with the root user. I read into a lot of sites that I should ...
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0answers
45 views

Logical flow to check for receipt of a bitcoin payment [duplicate]

I'm experimenting with writing some Bitcoin software in Node.JS using the node-bitcoin lib to talk directly to my own bitcoind via JSON-RPC, and I am trying to work out the best-practice way to ...
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1answer
476 views

How does the Clearing & Settlement process work in Open Transaction [duplicate]

From what I have read and understood. As open transaction platform uses coloured coins. The issuer of the coloured coin can associate it with a particular asset: like a ticket to a concert, or gold or ...
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2answers
672 views

How do i parse the zeroMQ messages in java?

This is the code that i have. I receive messages from the zeroMQ however a hashtx message for example looks like this --> "hashtx �����v����|(8d �!��v��&�-�k�". Any help in turning that into a ...
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1answer
147 views

Bitcoind 0.5.3 stuck at block 274,011

I compiled v0.5.3 of the core client from source, in order to compare IDB (Initial Blockchain Download) performance between versions. I created a fresh Ubuntu Xenial 16.04 machine on Amazon EC2. I ...
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1answer
529 views

What is a workaround to fundrawtransaction for watchonly addresses

I have imported watchonly addresses in Bitcoin and trying to createrawtransaction with input watchonly listunspend which has spendable=false, scriptSig=empty. after that, I'm getting an error on ...
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1answer
252 views

When and where to add extra information when signing P2SH raw transaction?

This post is quite long so in summary: I'm wondering where I can add extra information when signing a raw transaction (in this case a cleartext of a digest). I'm also wondering if Missing inputs (code ...
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0answers
346 views

Running multiple Bitcoin nodes on same network

I want to run a bitcoin node on two separate devices (computer + dedicated hardware device) on the same network (and would like them to be externally accessible). Specifically, I have a Casa Node ...
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1answer
563 views

Bitcoin node 403 json-rpc

have read all possible examples on the internet but still cannot connect to btc node from Java. I'm using btcd-cli4j but have tried all other rpc libs as well, result is the same. This is the command:...
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4answers
4k views

Can Bitcoin be run in a shared hosting environment?

Can bitcoind be installed and run on shared hosting? Has anyone successfully done this? If not why not.
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1answer
102 views

bitcoind and bitcoin-cli and bitcoin-qt

following the hackernoon for full node btc, https://hackernoon.com/a-complete-beginners-guide-to-installing-a-bitcoin-full-node-on-linux-2018-edition-cb8e384479ea i have some small questions, is there'...
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2answers
38 views

What role has bitcoin-init as a process?

I have set up a node on a RaspberryPi. When I check for active processes with top I see bitcoin-init occupying 50% of memory and 7% of CPU. I can check for bitcoind and it is active: bitcoin@...
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1answer
601 views

How to free up the space taken by bitcoind?

I am trying to create a wallet on my computer with bitcoind following this guide. I installed it, ran it, and monitored the process with bitcoin-cli. It went on for about 15 hours, at which it failed ...
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1answer
820 views

Installing bitcoin and bitcoincash on same server

I have installed bitcoin core by using its source code in my amazon server by using the instructions given in the below youtube link https://www.youtube.com/watch?v=tG_24G7bj_w Some portion of the ...
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1answer
230 views

How can I list my mined coins using RPC? And spend them?

I've mined a few blocks on a blockchain, and I'm trying to figure how to actually see them. What is the correct RPC command ? I've managed to see all the coinbase transactions thanks to ...
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1answer
2k views

Can't post on bitcointalk.org

I've done some research and understand that I'm supposed to post in a newbie forum and wait a while, as a newly registered user. But I can't seem to find the newbie forum. Does anyone know which top-...
0
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1answer
492 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. Isn'...
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3answers
971 views

how to run multiple bitcoind node on one server?

I have created one full node bitcoind on my VPS, that one is serving application A. Now I want to create application B that has another node but on same VPS. is that possible to install multiple ...
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2answers
122 views

rewriting past transactions in Bitcoin [duplicate]

Is it possible to rewrite past transactions in Bitcoin? For example, lets say, we have a super computer with any desirable speed, that would be able to calculate hash as fast as we want. Would it be ...
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1answer
1k views

Negative balance after sendfrom bitcoind

Any one can explain me why I get a negative balance after execute a sendfrom ? "sendfrom myaccount btcaddress amount" and right after "getbalance myaccount" return a negative balance I don't really ...
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0answers
209 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 bitcoin....
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1answer
611 views

lightning node daemon hangs at “waiting for chain backend to finish sync, start_height=521042”

I'm using Lightning Networks' lnd 0.4.1-beta node in Windows, with a Bitcoin Core bitcoind full node backend. The bitcoind full node has the --txindex option, and is fully synced according to ...
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2answers
106 views

P2SH secure spending. How?

Maybe my question is stupid, but imagine that I'm trying to spend inputs from p2sh. For example, p2sh scriptPubKey looks like: OP_SHA256 ...
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1answer
634 views

What is saved in wallet.dat exactly? [duplicate]

As I know, wallet.dat saves all related data for a bitcoin wallet. However, I don't understand what precisely is saved in the wallet.dat. I think it must contain several private keys. Does it also ...
0
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0answers
123 views

Extract all public keys from blockchain [duplicate]

I want to extract all public keys from the blockchain. Those will probably mostly be keys that have been used to sign transactions. How would I do this?
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1answer
393 views

need advice for Python interaction with bitcoin-core wallet

I've read about a few Python libraries that performs JSON-RPC calls to bitcoind. However, not many are actively developed/maintained, nor are they widely used in production environment. Since bitcoind ...