Questions tagged [bitcoin-core]

This tag should be used for questions pertaining to Bitcoin Core. Bitcoin Core is an MIT-licensed Qt 5 GUI application for the original Bitcoin codebase. Additional/previous names include "Bitcoin-Qt", "Satoshi-Client", and "Standard Client". This tag should be used when referring to the Bitcoin Core software.

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1answer
33 views

How to realize dependent transactions seating in the Mempool?

I am trying to find out the relation among dependant transactions in the Mempool. I have already used the "depends" field and tracking the transaction ids to go through. but I still can not ...
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1answer
864 views

Trying to open an old bitcoin core wallet.dat file fails

I am trying to open an old (~2012) bitcoin core wallet.dat with a bitcoin.com wallet, and it says that my password is incorrect, although it works great on my bitcoin core wallet. Was there any ...
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2answers
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Flatpak bitcoin-core not generating .cookie file

I'm using the version of Bitcoin-Qt 0.18.1 that comes with Flatpak. I've looked in the Bitcoin datadir, which is in ~/.var/app/org.bitcoincore.bitcoin-qt/data/ and there isn't any .cookie file there. ...
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1answer
46 views

Bitcoin Core private key import

I would like to import the private keys from a multisig paper wallet to Bitcoin Core. My aim is to convert the paper wallet to an electronic wallet and to be able to export the corresponding wallet....
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1answer
2k views

How to install Berkeley DB 4.8 on Linux?

The Unix build notes do not show how to install version 4.8 apart from saying BerkeleyDB is required for the wallet. Ubuntu and Debian have their own libdb-dev and libdb++-dev packages, but ...
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1answer
208 views

Does each miner in a bitcoin mining pool has a chance to win the block reward?

Suppose there is mining pool XYZ. 10 miners 1 through 10 are subscribed to it and miners have varying hash power, some have 10 GPU mining rig while others have just a single CPU running 24 hours a day ...
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1answer
163 views

I have a old version of Bitcoin QT on Apple

Which I think is about 3 years plus old but it was on my old computer which died. I have now recovered the drive at the bitcoin-qt application but it won't run on my current computer either due to the ...
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1answer
1k views

How can I accelerate confirmations in ledger nano s?

I am using Ledger Nano S hardware wallet to store my bitcoins. Last week, for an experiment, I decided to send bitcoins to hitbtc currency exchange with zero btc fees. I was wondering how many hours ...
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1answer
29 views

Bitcoin Core Address

Hi how can I look up my bitcoin-core address. I have generated multiple addresses to received bitcoins but when I look them up in a bitcoin explorer they do not show the balance I see in bitcoin core. ...
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1answer
24 views

How to know the destination address of a multisig?

Run this command: bitcoin-cli getrawtransaction 56214420a7c4dcc4832944298d169a75e93acf9721f00656b2ee0e4d194f9970 2 You will see the first vout is a multisig as follow: { "value": 0....
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1answer
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Does testmempoolaccept check all possible rejection rules?

Is there any rejection rule that testmempoolaccept will not check, or is it safe to assume that if it passes testmempoolaccept validation it will be at least broadcast? Mostly concerned about complex ...
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1answer
77 views

Can I open many channels to one connection?

Trying to learn the Lightning Network :) Can I do something like this: STEP 1: Generate new addresses address_1 = cli/lightning-cli newaddr address_2 = cli/lightning-cli newaddr address_3 = cli/...
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1answer
31 views

How is a multisig transaction transferred between multiple signers?

I'm trying to learn more about doing multisig transactions. The examples I've seen show the signing of the transaction with 2-of-3, or 3-of-3, where the signatures are added, essentially, at the same ...
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2answers
402 views

Successfully compile bitcoin without errors, but get 'Abort trap: 6' when I run /.bitcoind on Mac OSX

I compile bitcoin successfully without errors, but get 'Abort trap: 6' when I run /.bitcoind /bitcoin/src > ./bitcoind Abort trap: 6 Building with master branch lastest commit: https://github.com/...
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1answer
155 views

Cannot open dump wallet file (code-8)

Is anybody familiar with this problem using btc qt debug console? Would like to dump wallet and sweep into electrum.
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2answers
331 views

Differentiating Output Script (scriptPubKey) Types

I am working on a little script to breakdown the data inside coinbase transactions. This is largely to improve my understanding of legacy and SegWit transactions (Given coinbase transactions have less ...
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1answer
143 views

CScript to CPubKey or derive CPubKey from CScript

Please can someone advise if it is possible to derive the CPubKey from a CSript object? Provided i get it up with an address before hand, I can use numerous functions to attain all the info from the ...
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1answer
492 views

Watch only address not update balance

After adding watch only address to my bitcoin core and perform some transaction that make my watch only address balance to 0, but when i run getbalance and listaccount with watch only is true, my ...
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0answers
13 views

How to import multisig private keys

I've been trying to import my multisig paper wallet to Bitcoin Core. I am in possession of the private keys and the redeem script. The private keys are in uncompressed WIF format (i.e. start with a '5'...
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1answer
77 views

How can I verify the BTC supply with my own node?

With all the supply talk going on I wanted to verify the active supply on my new node I got. What is the best way to "run the numbers" I am running a raspiblitz node.
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1answer
67 views

Running bitcoin node with already verified blockchain

I'm following this guide https://stadicus.github.io/RaspiBolt/ to setup a bitcoin full node on my new raspberry pi. I already downloaded and verified the blockchain on my host machine. I also pruned ...
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1answer
59 views

gettransaction cannot get address where it send from

Hi i have test few time with gettransaction method, it seem only show full detail about transaction when send inside node. But if i send from another address outside my node, gettransaction only show ...
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1answer
27 views

Using maxuploadtarget in Node Window Console

Complete first-timer to setting up my own node here... I’ve got as far as downloading and syncing the node (on Windows PC), getting my router and anti-virus ports sorted, but want to limit my upload/...
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1answer
98 views

How do I get credentials on the bitcoin network?

I'm setting up an LND node so I can learn about Lightning Networks. I apparently need a set of user credentials so that I can connect to the network. How do I get the credentials that I need to set ...
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0answers
12 views

Are there any good websites to recommend? thank you [duplicate]

Knowledge about Bitcoin, as a beginner, what to learn. Is there a good website to recommend? About bitcoin.
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1answer
661 views

Bootstrap.dat on Mac OSX 10.9 - Difficulty

Been trawling through a lot of information (I know this similar issue has probably come up a fair bit) on this issue and going round in circles a bit. I am not the most tech savvy individual, and ...
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2answers
402 views

What exactly does the scary option “Allow incoming connections” do in Bitcoin Core?

Software authors seem to enjoy consciously freaking me out by having vaguely or entirely uncommented options in their software with very ominous labels. In Bitcoin Core's settings, it says "[X] ...
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1answer
494 views

Issue with sendrawtransaction missing inputs error code -25

Working with Bitcoin-qt 0.16.3 testnet Attempting to sendrawtransaction, however, receive following error: Missing inputs (code -25) From what I have read, this results from attempting to use ...
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1answer
751 views

Running a bitcoind docker

Thanks to the bitcoin.stack community I have successfully launched a bitcoind docker with an external volume which has the block data Currently its in 100% sync but I am facing an issue to get ...
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1answer
39 views

Bitcoin Core on Windows get wallet address

I have recently downloaded and installed the Bitcoin core software for Windows. It is still currently syncing at 10.89%. I am unable to find the wallet address anywhere in the application itself. If ...
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2answers
431 views

Is it possible to run two Lightning Network nodes on top of single Bitcoin Core node?

I would like to simultaneously run LND and Eclair nodes on top of single Bitcoin Core bitcoind node. Is it possible? I wasn't been able to pull it off so far. If possible, how to set up ZMQ and ...
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1answer
116 views

Get input address using VIN txid?

I have written following script to get Vin address from Vin txids. #!/usr/bin/python # -*- coding: utf-8 -*- import requests,json url="http://asd:asdf@localhost:2332" payload={} payload = {"jsonrpc":...
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0answers
10 views

How to transform mnemonic to hd seed accepted by Bitcoin Core [duplicate]

How to transform mnemonic to hd seed accepted by the sethdseed command? Thanks
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0answers
26 views

How to setup hd wallet using mnemonics with bitcoin-core? [duplicate]

I'm currently learning Bitcoin wallets using Bitcoin Core, and I need some guidance and help especially when it comes to mnemonics and hd seeds. This is what I have read about mnemonics and seeds: bip-...
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0answers
19 views

Is there actually such a thing as “blockchains” being used right now for actual things? [closed]

In the last few years, I've heard "blockchain" and "blockchain 2.0" and many other such buzzwords repeated so many times that I'm beginning to wonder if I've missed out on ...
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1answer
27 views

Is there any way to replace “move”?

The "move" command can't use because the account system is gone. So, Is there any way to manage my coins, address, wallet with no fee like "move"? Pleas let me know. :(
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2answers
19 views

Upgrade apt bitcoin-core package

I originally set up my bitcoin-core node on Ubuntu 16.04 Xenial using apt. The ppa:/bitcoin/bitcoin package repository that I used isn't maintained beyond version 0.15.0, so I need a different way to ...
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1answer
101 views

Wallet shows 0.00000000 btc

I’m running a Antminer S9 for a week now Just today the wallet finally synchronised but shows 0.00000000 btc 🤔 why?
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1answer
126 views

Sync bitcoin transaction status to local database

I am sending bitcoin transaction in node js via bitcore-lib and bitcore-explorers. I realized that when i call the function .broadcast to send the transaction to network and returns value, it means ...
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1answer
180 views

Using bitcoind, is it possible to set a specific fee with sendtoaddress?

For example, setting the fee to exactly 1000 sats or 300 sat/kw?
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1answer
52 views

Installation instrucion the for bitcoin core (tar.gz file from bitcoin.org in Linux/Ubuntu Desktop 18.04.)

There are many discussions going on as there is a lack of a simple tutorial as to how to install Bitcoin Core (GUI) on Linux distributions, i.e Ubuntu 18.04. Bitcoin.org offers the tar.gz file (i.e. ...
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3answers
53 views

Is there really no manual for Bitcoin Core?

This is not the first time I'm desperately searching for Bitcoin Core help and finding none, but look at this: https://bitcoincore.org/en/doc/0.20.0/ That's the closest thing to a "manual" I ...
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1answer
27 views

What's the best strategy to send btc from one wallet to a address list with transaction id for each payment?

I'm triyng send a mass btc payment, but using "sendToAddress" i'm limited send a new transaction only when the last was confirmed, if i try send when the last was pending of confirmation i'...
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2answers
836 views

bitcond and bitcoin-Qt system configuration and bandwidth requirements

What is the best operating system configuration for a computer to run (bitcoind or bitcoin-Qt) and (BFGminer or CGMiner) under Linux, assuming that it will be connected to a 3 Terrahash mining rig on ...
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2answers
184 views

Auto load all wallets when start up

Every time I restart my bitcoind, all the wallets will need to be reloaded: $ bitcoin-cli listwallets [ "" ] $ bitcoin-cli loadwallet test01 $ bitcoin-cli listwallets [ "", "test01" ] So I was ...
5
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3answers
888 views

How to receive payments online to single address per user in scalable way?

Suppose we are building online casino/market and want to receive payments. To be scalable, safe and have good user experience, we: cannot generate new address for every single payment. Having single ...
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1answer
22 views

Questions about sendmany json-rpc

1 - Whats is the limit for sendmany? 2 - Can i batch a large number of payments (several hundreds)? 3 - Does an error in processing any address would interrupt the whole process?
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1answer
2k views

How to send Bitcoin in the Testnet?

I'm using this library: https://github.com/lian/bitcoin-ruby And here's my code: require 'open-uri' require 'net/http' require 'net/https' require 'json' require 'bitcoin' Bitcoin.network = :...
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1answer
181 views

Upgrade from Bitcoin QT 0.8.5 to latest Bitcoin Core 0.15.X

I bought and transacted BTC in 2013/2014. I had a Bitcoin QT 0.8.5 wallet. I plugged it in and it updated correctly to the latest block. It correctly showed my BTC balance. I made a transaction ...
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2answers
43 views

About Bitcoin Core

I have just downloaded the Bitcoin Core from https://bitcoin.org/en/download I would like to ask the following since I have read the following article: https://blockgeeks.com/guides/best-bitcoin-...

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