Questions tagged [bitcoin-core]
Bitcoin Core is a full node implementation of the Bitcoin protocol with a wallet and GUI. Bitcoin Core is a 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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RECOVER YOUR LOST FUND/CRYPTO
To Chris Arnold and their incredible team, I can’t thank you enough for your exceptional assistance in recovering my lost cryptocurrency. Chris Arnold’s extraordinary expertise and unwavering ...
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Cannot import multisignature descriptor in Bitcoin Core
I created a multisignature address in regtest:
ADDR_1=`bitcoin-cli getnewaddress "" "bech32"`
ADDR_2=`bitcoin-cli getnewaddress "" "bech32"`
PB1=$(bitcoin-cli -...
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How does Bitcoin core knows whether CPFP carve out rule is already used?
Bitcoin node has 2 rules that limit the use of CPFP:
number of descendants (including transaction itself) can't be more than 25
total size of transaction and all its descendants can't be more than ...
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21
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Why can't I import a Bitcoin Core private key into an Electrum wallet that supports Lightning?
Why can't I import a Bitcoin Core private key into an Electrum wallet that supports Lightning?
Running importprivkey in the Electrum console, I get:
Error: This type of wallet cannot import private ...
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LOST BITCOIN due to casino transfer [closed]
The casino never told us not to use cashapp as long as have bitcoin we can withdraw. My winnings of $100.00 still missing since Aug 2023. I have repeatedly requested help from them and they said look ...
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bitcoin-qt wont launch after 4 hours
I decided to run a full node recently, as I want to import keys to a new wallet.
However, the program wont open while running a full node.
Started synching yesterday at morning, it synched up to 2018.
...
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27
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Verify your download
Why does Bitcoin core wallet bitcoin-26.0-win64-setup file
does not match the signatures of the SHA256 binary hashes or
SHA256 hash signatures which i can download same side. I think i do it wrong, ...
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Bitcoin Core Node Stops Continuously
I've recently setup a Raspberry Pi 4 to run as a Bitcoin Core node. I've noticed that after starting Bitcoin Core is shuts down after a short period of time. My first thought was that the Pi was going ...
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Can it happen that, after a bitcoin transaction, the change is sent to a receiving (not change) address?
I have an Electrum wallet and I can see there are 2 types of addresses: receiving and change.
Change addresses are supposed to receive the change bitcoins after a transaction, but can it happen that ...
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1
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67
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Wallet transaction not confirming in blocksonly mode
I sent transaction with bitcoin-cli:
bitcoin-cli sendtoaddress tb1q3qlv7k648hec866a0x395hq0h3sqcg2lrq5r0k 0.001
As an answer I've got transaction Id.
But it still has no confirmation (a few hours).
...
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1
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45
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Stuck in the middle between unconfirmed transaction and empty wallet
I initially set a low fee to one transaction, trying to cancel the transaction I runned bit coin core with -zapwallettxes and all transactions in bit coin core disappeared. I still can see the ...
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33
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Listunspent does not return all utxos [duplicate]
I am using Bitcoin Core to get all UTXOs for watchonly imported addresses. The strategy is the following:
I load a new wallet
await client.execute("loadwallet", ["testwallet"])
I ...
2
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2
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What types of RBF exist and which one does Bitcoin Core support and use by default?
As far as I know Bitcoin Core knows two types of RBF. These are Full RBF and Opt-in Full RBF. In both cases, the transaction will be replaced if a new one arrives that consumes at least one of the ...
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1
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77
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P2WSH Bitcoin Core Witness Script Empty Error
I am trying to spend a P2WSH output. Here are the steps I have taken:
I have created a P2WSH output via bitcoin-cli. These are the details of the P2WSH output:
Type
V0_P2WSH
scriptPubKey (asm)
OP_0 ...
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1
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75
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How to buy BTC with a non custodial wallet directly?
I apologize if this question does not make sense.
But please correct me if I'm incorrect.
If someone has a US Bank with a positive balance and has created a wallet using the bitcoin core "bitcoin-...
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Orphan Blocks in my Debug.log -
My Debug.log shows
2023-10-27 05:48:02 ERROR: CTxMemPool::accept() : nonstandard transaction (scriptpubkey)
2023-10-27 05:48:02 received: tx (421 bytes)
2023-10-27 05:48:02 ERROR: CTxMemPool::accept() ...
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1
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35
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Import old paper backup (WIF private key) into modern Bitcoin-QT
When trying to import a WIF private key into Bitcoin-QT i get this error:
Only legacy wallets are supported by this command (code -4)
How can one import a private key on a non-legacy wallet?
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53
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How To Reach My Funds From My Wallet Years Ago
I have a wallet.dat
and a .txt file
inside this txt file
wallet number like : L1aC2...
and a hash like: $bitcoin$64$a2z...
How can I reach to my fund inside this wallet ? I kinda have some memory ...
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0
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40
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Bitcoin Core not displaying my account balance, can't do anything with it
Over a month ago on , I tried to send my balance from my Bitcoin Core wallet to another wallet on a different client, but I had accidentally set a really low transaction fee, leading to the ...
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2
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1
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64
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Lost bitcoin in a blocked transacion
I was trying to transfer some bitcoins from my bitcoin core wallet to another online wallet.
I did this transaction like 3 weeks ago. and I think I have lowered too much the fees.
The transaction was ...
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0
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Can I use 2 individual private keys to spend from my Bip32 HD 2 or 2 multisig?
Example keys are fake:
If I build a 2 of 2 in Sparrow or any Bip32 Determ wallet, with P2WSH native segwit, and ONLY send funds to the very FIRST receiving address:
m/48'/0'/0'/2'/0/0: ...
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3
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0
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Bitcoin core shutdown after running for about 1 day
I have my bitcoin core daemon up and running on Ubuntu. However it always stops after running for serveral hours or 1 day. Here's the debug.log before it stopped.
2023-11-23T18:04:42Z [net] Saw new ...
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2
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73
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From a technical point of view rather than an economical one, is it possible to mine bitcoin on a laptop?
I would like to mine bitcoin on a laptop, the aim is not to turn a profit but rather learn how mining works without spending money on an ASIC and electricity. I thought about buying a cheap low TH/s ...
2
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0
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49
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Page size of read (and write) operations
I'd like to fine-tune the recordsize parameter of my ZFS file system used to store the blockchain and related data to optimize my public node's performance. Which page size does bitcoind (Bitcoin Core ...
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0
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22
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For running a lightning node and getting maximum exposure, should I forward port 8333 also (for bitcoin)? Or only 9735 (lightning)?
I've been wondering about this. From what I read, people only open 9735 to run a "successful" node.
To me it makes sense not to open bitcoins port, but I could also imagine that some ...
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1
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55
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Is it possible to download only a part of the blockchain?
I am doing some investigation related to the bitcoin transactions graph and I don't need the whole blockchain, because it would be too much data (and I don't have much space). I just need a part of ...
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0
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43
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Where does Bitcoin Core implement announcement of blocks optionally by `cmpctblock` or `inv` messages?
In BIP152 implementation note
Nodes MAY impose additional requirements on when they announce new
blocks by sending cmpctblock messages. For example, nodes with limited
outbound bandwidth MAY choose ...
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the switching timing between high-bandwidth mode and low-bandwidth mode in CompactBlockReray
If the Compact Block transmission node is bandwidth-limited, there is a statement in bip152 implemention Note that an 'inv/headers' is sent. Are there specific thresholds or settings for this in the ...
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1
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28
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Snap Install Bitcoin Core on WSL Ubuntu 22 doesn't add binaries to PATH
I'm trying to install bitcoin-core on my WSL Ubuntu 22. I've already snap-installed bitcoin core on my bare bone Ubuntu 22 and once completed it adds to the path the binaries bitcoin-core.{cli,daemon},...
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2
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69
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Bitcoin node : importprivkey does not import all getnewaddress previously created
I have a problem with my bitcoin wallet recovery process.
I have a wallet with thousand of address attached created with RPC method 'getnewaddress'.
I would like to have a recovery process for this ...
0
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1
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39
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Bitcoin Core transactions between wallets
How can I move Bitcoin from a descriptor wallet to a legacy wallet on bitcoin core.
What is the difference between a descriptor wallet and a legacy wallet?
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Bitcoin Core really slow to sync recently
Apologies if this is not the right place to ask for help with this, but I don't know where is.
I have a Bitcoin Core full node (Windows 11), but one that doesn't run all the time. Node is not pruned, ...
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1
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Why can't I bumpfee the 25th tx in an unconfirmed chain?
I have a chain of 25 unconfirmed transactions. There's a default mempool limit of 25 chained unconfirmed transactions, so my change output of the 25th transaction is not usable until some of the ...
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1
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59
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How to remove a tx from local node mempool that's been removed from all other node
I'm running a fullnode with electrumx on top for indexing. I've noticed that sometimes, due to low fee, a tx gets dropped from mempool after some hours/days. However, it stays for longer periods in my ...
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2
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What if a miner just broadcasts the header and never gives the body? What will happen?
What if a miner just broadcasts the header and never broadcasts the body?
For example:
A miner, after having successfully mined some block, just broadcasts the header for all other miners and hide the ...
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1
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Private key on Bitcoin Core
I can't create the private key of a legacy address on bitcoin core. When I do the command it writes me that it can only be done to legacy addresses. And my address is legacy. What should I do. Thank ...
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0
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Cannot find bitcoin.conf on macOS
I want to run a pruned node. I mistakenly referred to a guide for a full node to connect to Sparrow wallet, which required adding server=1 and txindex=1 in the bitcoin.conf file. I reached this file ...
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1
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61
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Gen=0? Will still mine Bitcoin, but will not generate Rewards
I have a debug.log showing approximately 80 rewards from january 2009 to roughly sometime 2011.
I am using bitcoin 0.8.6-beta with Gen=1 and I've ran my wallet through bitcoin 0.8.6 a few times. I've ...
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Is it possible to make functional tests use my `bitcoind` running node as node?
I'm trying to fix some tests that are broken due to my own changes in the code base, and need to simultaneously run functional tests and bitconid in regtest mode and make functional tests to use my ...
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3
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Is it advisable to operate a release candidate full node on mainnet?
Bitcoin Core 26.0rc2 was released a few days ago.
I've observed that several node operators have already installed this test release candidate version and are running it on the mainnet. Data from ...
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listaddressgroupings or dumpwallet? I need to dump private keys from Bitcoin-QT
I have a Bitcoin-QT wallet and the client is more than a year out of sycn. It would take years and massive amount of data to get it synced so, this is out of the question.
My plan was to move my coins ...
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What is the best way to restart bitcoind after a bitcoin.conf change (Ubuntu 23.10)
I'm curious about the recommended way to restart a systemd service after a configuration change or if there is any particular issue with running sudo service bitcoin restart to have the config change ...
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0
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Bitcoin core syncing txindex stalls
Bitcoin core bugging out since what I assume was a bad shutdown. Mostly fixed (I think) but stalling trying to resync txindex. Here's the history:
Core wouldn't connect to peers or load the latest ...
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1
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28
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The QT wallet does not start
The QT wallet does not start:
./bitcoin-qt в ubuntu 20.04? qt.qpa.plugin: Could not find the Qt platform plugin "offscreen" in ""
...
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2
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104
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Bitcoin Core configured for testnet, syncs mainnet
I'm trying to get Bitcoin Core to sync the testnet, but it keeps syncing the mainnet instead.
Here is my bitcoin.conf file:
[test]
addnode=104.237.131.138
addnode=151.80.205.132
addnode=192.155.82.123
...
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Bitcoin Stratum Protocol Implementation In Python
First of all, I am very new to Bitcoin mining and using Python to learn Bitcoin mining for educational purpose. I am using AntPool for pool connection.
When I send mining.subscribe request, it returns ...
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1
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96
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How to get scriptPubKey from public key hash
My goal is to create a transaction. For that I need to know the following things:
The private key signing the transaction.
Who can spend the bitcoins that I'm sending.
Valid UTXOs that the sender can ...
1
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0
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118
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Decrypt an encrypted mkey from a corrupt Bitcoin Core wallet.dat file
I have a 94 digit encrypted mkey that I obtained from my corrupted bitcoin core wallet.dat file.
I also have the password, the salt, and the number of iterations.
Using the password I’m unable to send ...
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1
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79
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Broadcast transactions through bitcoind without importing private key
My question has already been asked before, and some answers were also already given
the question, however, it's not clear to me why I get some behaviour when implementing it. Here are the details:
I ...
1
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1
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56
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BitcoinCore 25.1 won't launch (Windows 10.0.19045)
I updated BitcoinCore (v19 to 25.1) and get this error at launch:
Error: Error reading configuration file: conf cannot be set in the configuration file; use includeconf= if you want to include ...
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