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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1answer
15 views

What does the RPC call “getmemoryinfo” show?

What does the output of the RPC call getmemoryinfo actually mean? For example, this is from my node running in Docker. Does that mean the bitcoind process inside the container is only using 64272 ...
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Bitcoin Core v0.21 RPC credentials going bad

I have tried to upgrade to bitcoin core 0.21 but things are not going good. I need some help. I'm using Debian Buster. I was using bitcoin core 0.20.1 before. The folder locations are as I have in my ...
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2answers
48 views

List transactions after losing wallet and private key?

I have made various transactions with my wallet using bitcoind. If I lose my wallet (and private key) and somebody else somehow knows my private key and does some transactions, is it possible for me ...
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1answer
35 views

Connect to custom bitcoind

I have a fully synchronized btc node on my network. Which mobile apps (android) and desktop apps can I use to connect to this node without running a full node/ daemon on the desktop or mobile? And how ...
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0answers
21 views

A fatal error occurred. Bitcoin Core can no longer continue safely and will quit

Unfortunately, having an issue with #btc While synching my core node I had a power outage and now every time I try to run btc core I get this message. “A fatal error occurred. Bitcoin Core can no ...
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3answers
178 views

Is there a script for bitcoin core which prints all spendable UTXOs given a private seed?

I am looking for an open source script or application which would take a private wallet key from the user (from terminal input or file, as mnemonic or xpriv string) and then connect to a bitcoind and ...
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1answer
19 views

Force Inbound Connections to IPV6 only

Is it possible to restrict all connections to an IPV6 address? I've set onlynet=ipv6 bind=:: But it seems that nodes are still attempting to connect to an IPV4 address (in addition to the IPV6 ...
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1answer
16 views

Setting the fee rate on regtest, or, quickly generating full blocks

I'm setting up some automated testing for a lightning wallet. At the heart of my tests is a bitcoind instance running in regtest mode. I need to be able to set the fee rate - both the fee rate ...
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1answer
77 views

So I’m kindve confused I have 4.25 btc in BitPay wallet so what’s the difference between a bitcoin worth 33k

Just need to know the difference between the two and what’s the difference between the BitPay wallet and regular bitcoin
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20 views

Bitcoin core Recent Transactions seems Empty

I have setup bitcoin core 0.20.1. Everything is set up correctly, I made a transaction on main net - but it is not showing under recent transactions. Though transaction is confirmed on blockchain. ...
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1answer
42 views

Pruning Blockchain, what does it remove?

I am trying to determine if I want to prune but I'm trying to figure out if it would interfere with anything. Would it interfere with rpc calls to show info on a transaction/block? A full explorer? ...
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Failed to start bitcoin daemon using Ubuntu 20.04

Hey I keep getting this error everytime I run sudo systemctl enable --now bitcoind Job for bitcoind.service failed because the control process exited with error code. See "systemctl status ...
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22 views

Most Energy-Efficient Way To Reactivate Disabled Operational Codes (Opcodes)?

Currently, there exist a number of operational codes (opcodes) within the bitcoin protocol that have been disabled for security reasons. These script functions of the bitcoin protocol were taken out ...
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1answer
37 views

Mining Pool hub support cpu miner?

I have a simple/old CPU (like dual-core/Quad-Core) with unlimited electricity and all the other stuff. I would like to run 10 PCs with CPU mining. It's better to mine solo or the join mining pool hub? ...
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0answers
42 views

I'm not able to spend unconfirmed balance bitcoin core spendzeroconfchange option not working

I'm trying to make my wallet to spend unconfirmed transactions , I searched over the internet with no luck to fix this , I tried spendzeroconfchange=0 spendzeroconfchange=1 in bitcoin.conf still ...
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25 views

Signing transaction for later use

If I have a segwit UTXO with for example 10 BTC , can I make some raw transactions ready to get broadcasted?
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0answers
12 views

Mining with getblocktemplate for specific number of transactions

Can you control the number of transactions in a getblocktemplate curl/get request ? Given that you can exhaust 4 billion nonces . I'm wondering how you vary the number of transactions without varying ...
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0answers
24 views

4 ERRORS GENERATED WHILE INSTALLING BITCOIND

I need your help plz. I have been struggling for weeks to make bitcoind work in my mac terminal. I installed all required programs and dependencies: xcode, bitcoin core, openssl, homebrew, and cloned ...
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1answer
31 views

Are there any Bitcoin block explorers still around that log First Seen by node data?

Title.. Hoping to find out when a historical tx went into the mempool. I'm aware this is transient data and not in the blockchain. However i'm pretty sure I remember in the old days explorers used ...
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1answer
45 views

How can I split blockchain data over two hard drives?

My node has two SSDs and the first one is filling up. The second one still has ~230GB available and I would like to move old blockchain data over there to free up an equivalent amount on the first ...
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1answer
16 views

Is it possible to detect if flag -txindex is enabled using RPC?

Using JSONRPC, how do I detect if a node has -txindex enabled?
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1answer
90 views

What version of C++ is used in Bitcoin Core?

I can't find the information on which C++ version is being currently used in bitcoin core project? Is it decided for future releases somehow? How does the situation looks now? The only thing I could ...
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1answer
25 views

How does electrum interact with the underlying bitcoind service?

I am a bit confused regarding the bitcoind peers and Electrum X peers. From what I understand, the electrum X protocol is built on top of the bitcoin blockchain, but I cannot quite wrap my head around ...
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1answer
39 views

How to generate new wallet address per token

I'm using getnewaddress bitcoin-cli function to generate wallet addresses but i need one address per token. Is it possible to use a parameter like seed for random numbers to get the same address when ...
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1answer
23 views

Can I interrupt the initial blockchain download without losing progress?

I just installed Bitcoin Core through brew on my mac. The blockchain is now downloading but it's slowing down, so I would like to restart it. Can I abort the process and restart it and will it pick up ...
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0answers
22 views

Bitcoin daemon says directory doesn't exist even though it does

My bitcoin.conf file contains the following config: datadir=/unbackuped/btcBlockchain And I run bitcoin-core.daemon with this config file as an argument, but it tells me: Error: Specified data ...
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1answer
59 views

How to configure bitcoind to wait for X confirmations to make the payment submitted

I'm using bitcoind for an ecommerce website. Walletnotify setting in bitcoin.conf only fires twice (once the payment appears on the network and then when the payment is confimed the first time by a ...
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0answers
27 views

connect to bitcoind from docker container

I'm trying to connect to bitcoind from a docker container in order to generate new addresses. I keep getting connection refused message. I saw a solution saying that i have to change bitcoin.conf file ...
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1answer
33 views

What happens to the bitcoin mining if the device changes?

First I've opened this site via mobile and registered with a Google account. Some time later, I continued to mine bitcoin through my laptop with the same account. Will this device change make it ...
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2answers
44 views

Transaction amount for bitcoin payment gateway

I'm trying to add bitcoin payment for my ecommerce website. I have installed bitcoind on the server and i've set the notify wallet parameter in bitcoin.conf. the issue i have now is how to know that ...
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3answers
42 views

How nodes solve cryptographic hash by random guesses in bitcoin network [duplicate]

I searched for a lot. Previous answers on the bitcoin stack exchange did not answer my question. Well, According to my research, Any node can collect a set up unconfirmed transactions into a block and ...
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1answer
128 views

does Bitcoin Core automatically use reindex when you specify txindex=1 with existing sync'd chain?

I sync'd a bitcoin node with Bitcoin Core Qt GUI. Hundreds of GB, naturally. I realized I needed txindex on for Lightning node stuff, so I changed the conf file via the GUI to include txindex=1. I ...
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1answer
19 views

Running both bitcoind and bitcoin-qt for use with lightning

I've been toying around with bitcoin & lightning nodes. I like having the Bitcoin Core Qt GUI around for things, but also like being able to change specific configuration / startup flags (maybe ...
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1answer
33 views

RPC security of bitcoind node

If I have a fairly default bitcoin.conf file, let's say: rpcport=8332 txconfirmtarget=6 ie: notably one where I don't specify things like rpcuser, rpcpassword - is this insecure? As I understand, ...
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1answer
140 views

How to generate valid BTC address to withdraw coins to

I set up bitcoind, and the complete blockchain is synced. I created a wallet, and I loaded the wallet. How can I generate an address to deposit BTC to? I tried bitcoin-cli getnewaddress and I get this ...
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1answer
30 views

Compiler optimizations for self-compiled Bitcoin Core

If I compile Bitcoin Core using the instructions in the README, does the C++ compiler use compiler optimizations for my current CPU, or will it output a "generic" binary, that can run on ...
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1answer
18 views

Can I see transactions in bitcoin-qt without downloading blocks? if I have a server with blocks on the local network?

I have server with bitcoind (synchronized), port 18443 opened. And I tried to connect to rpc server with bitcoin-qt in my mac. With this configuration: regtest=1 rpcuser=<login> rpcpassword=<...
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1answer
28 views

Specification of REST .bin format?

I'm currently using the JSON Rest API to get lots of transaction data from bitcoin. Unfortunately thats quite slow. I know there is also a binary format (see Unauthenticated REST Interface), but I ...
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1answer
24 views

Bitcoind to use static RPC authentication cookie from file?

I'm running bitcoind 0.20.1 inside a Docker container and would like to access its RPC interface from another container. I have put an authentication cookie into a Docker secret and mapped it to /run/...
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2answers
74 views

Bitcoin Core for ARM-based Macs?

Should we expect in the foreseeable future a Bitcoin Core release optimised for ARM-based Macs?
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2answers
73 views

Partially Signing multisig rawtransaction returns redeemScript/witnessScript does not match scriptPubKey

I want to partially sign a rawtransactions using bitcoind through RPC but I am really stuck almost at the end of the process when I try to sign my manually created raw transaction and I spent many ...
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2answers
279 views

Reproducible Gitian Builds .. but not the same hash as bitcoincore.org

Bitcoincore.org and Bitcoin.org will let you download a tarball for bitcoin v0.20.1 When they do it bitcoind: 4ec74161b2a90293926ae8e20a2efbe952bd23b53aeebf051e6a6285ace18271 bitcoin-0.20.1-x86_64-...
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1answer
22 views

Bitcoind walletnotify runs only when transaction get it's first confirmation

I've successfully configured bitcoind and walletnotify to run on every deposit transaction in testnet. The problem is walletnotify hits only when a transaction gets its first confirmation and nothing ...
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0answers
10 views

How to accelerate the long time for bitcoin-core to sync the blockchain? [duplicate]

How can I accelerate: the process of sync'ing bitcoin-core for console usage? Pokey internet. Can't I sync recursively and in the background? Just looking to learn by playing and using console ...
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3answers
65 views

The best JavaScript libraries supporting Bitcoin Core?

I have downloaded and installed Bitcoin full node on my Linux server and I'd like to start working with the bitcoin core to create wallet, addresses, and transactions. What is the best JS libraries ...
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1answer
53 views

How can I reproduce the same binary as bitcoin.org or bitcoincore.org?

I'm hoping that someone can tell me how to get the same binary that we see on bitcoincore.org/bitcoin.org. I tried using Ubuntu 20.04 git clone https://github.com/bitcoin/bitcoin git checkout v0.20.1 ...
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0answers
52 views

Getting “N5boost10filesystem16filesystem_errorE” error when running bitcoin-cli

Backstory I'm running Bitcoin Core 0.20.1 on a Raspberry Pi 4 (running Raspberry Pi OS standard). It's just a standard install of Bitcoin Core, I built from source and installed into /home/pi/.bitcoin ...
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0answers
7 views

Bitcored: cannot locate the bindings files . Tried

I am trying to start bitcored but I'm receiving the error below.
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2answers
48 views

Why is bitcoind removing keys from keypool?

I opened my laptop which always has bitcoind running and my log is going ballistic with messages like: 2020-11-05T12:41:57Z [FullyNoded-d703055f46595edcf8163916bd906f9563afc0903fbe74c2882a93c59359ca00]...
3
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1answer
284 views

When does Bitcoin update the UTXO set?

I am kind of confused with something. I hope you can clarify it for me... Let's say I want to make a transaction. So my exchange wallet does that for me. The way it does this is it first grabs the ...

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