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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Interpreting descriptors from bitcoinrpc for python
I've been running through the Bitcoin blockchain like this and comparing the descriptors to https://github.com/bitcoin/bitcoin/blob/master/doc/descriptors.md...
rpc_connection = AuthServiceProxy("...
- 275
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1
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Failed to start Bitcoin daemon
I set up Tor with bitcoind. After that, when I started the daemon, I got the following error.
Error: Cannot set -bind or -whitebind together with -listen=0
My bitcoin.conf is:
server=1
txindex=1
...
- 25
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What wallet size difference to expect between Bitcoin Core (binary) and Electrum (json) wallet files?
Imagine a relatively big wallet with tens of thousands of addresses and 3x transactions.
Now, let's say I restore such a wallet and do full re-scan in two applications - in Bitcoin Core and in ...
- 193
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Early version of bitcoin and poker
How can we locate the code for an online poker game in version 0.1.0 of Bitcoin, which multiple articles on the internet claim was included by Satoshi Nakamoto? Furthermore, how can we verify that ...
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Does Bitcoin Core version v22.0.0 support SLIP-0132?
Launched my own Bitcoin Core with regtest.
Installed Specter and made it connect to that node.
In Specter, I created a new bitcoin wallet, basing it on the bitcoin core hot wallet.
In Specter, I ...
- 193
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bitcoin core generate xpub (not hardened) from pubkey
I am a vendor in a marketplace that accepts bitcoin.
In bitcoin core that I run, I retrieved pubkey of my wallet by running getaddressinfo. Now, I need to generate an xpub key and pass it on to the ...
- 193
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71
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How do i trade my bitcoin with high chances of profit [closed]
I have been wanting to invest my funds in a very long time but i always have it difficult to do because i am always scared of losing my funds to bitcoin and now that i realize the speedy increment of ...
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41
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Consequences of turning on pruning setting in Bitcoin core after initial block download
I have been running full node without specifying the pruning settings in bitcoin.conf.
I was wondering if I need to re-download the entire blockchain if I restart my node after turning on pruning ...
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order of the details array in the output of the gettransaction wallet API call
According to https://developer.bitcoin.org/reference/rpc/gettransaction.html the details array contains a list of the outputs of that transaction. Each output has a vout. So in my tests, it seems that ...
- 13
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59
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Why is wtxid called "hash" in Bitcoin Core's getrawtransaction RPC?
In the industry txid is known as "transaction hash". Why wasn't the "hash" field called "wtxid"?
- 23
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The "open configuration file" for Bitcoin Core does not open
Why doesn't the "open configuration file" in Bitcoin Core open when I click on it?
Settings -> Options -> Main, open configuration file at bottom left -> Configuration options.
It ...
- 25
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3
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69
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Weak Subjectivity Checkpoints trust assumptions
With AssumeUTXO it should be possible to sync to chaintip from a recent snapshot of the UTXO set, rather than from the genesis block (although there's background full validation after sync). This is ...
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Bitcoin-core not saving transaction data
I have installed Bitcoin Core for full node and the synchronization seems to have finished, but there seems to be no transaction data saved on my PC storage. Why is this? Hopefully it should be ...
- 25
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Bitcoin Core v.23 import private key question
Bitcoin Core v.23 import private key question
Hello.
I have a private key which I have imported (importprivkey in console) into bitcoin core v.0.17.1. Balance for example 1 bitcoin
Made a transaction ...
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How Wallet Mobile Softwares deal with Wallet Balance and Transaction history?
I'm trying to build a mobile software Wallet made in Flutter with a Bitcoin Core Full node that communicates with a Node.js backend.
The problem I can't find the answer to is: how can wallet ...
- 31
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69
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Why zero amount transaction outputs are kept in Bitcoin Core chainstate database?
They can be added as an input to a transaction, but what is the benefit of that? Isn't it the same as adding any random data to the transaction and pay the fee? You must know the key(s) to sign, and ...
- 105
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Bitcoin Core running in a Linux Docker container under Windows doesn't recognise an already downloaded blockchain copied from Windows Bitcoin Core
I run Bitcoin Core under Windows 10. I have now set up a Docker container to run Bitcoin Core under Linux on the Windows computer. I copied the Windows Bitcoin directory (containing all the blockchain ...
- 131
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1
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93
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Calculating addresses from Bitcoin transaction data
What would be the easiest way to retrieve addresses that are used in specific transaction? For instance, if you look at following transaction which is retrieved by getblock of JSON RPC with argument ...
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1
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How do I troubleshoot port accessibility to allow inbound connections on MacOS?
I'm wondering if anyone has experienced anything like this. IPv4 ports seem blocked. I have tried everything to open a port on my Mac but the port seems blocked.
It's like the only port that can be ...
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41
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Size of the `chainstate/` dir vary from node to node
I run 2 nodes:
a non-pruned, txindex=1 node that has been running for years (I can't tell exactly but I think I have been moving the same datadir around since 2014/15), core v23.0.0
a pruned node ...
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how do I import a private key corresponding to bech32 address to bitcoin-core?
Example address
bc1q69wqlexdn250purgskahfj9pg2f3ylg82vgy9m
private key (WIF)
KyVWvid6fC5WXHrV35ZkxqXgXsYrE9mPxMpusWBFiF771y2AYZrz
How can I import this into an existing wallet (Bitcoin-qt)?
I tried ...
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How do I view Multisig Trades using bitcoincore?
For a school project my goal is to go analyze multisig trades, is there a way where I can make this information any more clear to me?
I have been running bitcoincore as a way to get trades that I can ...
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43
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deriving address from pubkey API problem?
This code:
sender_public_key = sender_private_key.pub
sender_address = P2PKHBitcoinAddress.from_pubkey(sender_public_key)
print(sender_public_key)
print(bitcoin.core.Hash160(sender_public_key))
print(...
-2
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1
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58
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How did Satoshi Nakamoto create the first Bitcoin? The Genesis Block
How did Satoshi Nakamoto create the first Bitcoin? I have never read any statement where he recommends specific tools like CGMiner. You can't mine with the Bitcoin Core software. Actually, Bitcoin ...
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3
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1
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83
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Optimising blockchain parsing with rpc + python
I have a python app to track and store utxo in a simple/flat structure that looks like this...
from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException
# track the utxo
trackUtxoList = []
...
- 275
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1
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381
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Can I delete blk*.dat files?
Since bitcoin validates blockchain by the hash of older blocks recursively; Can I just keep the last blk*.dat file and delete the rest while the bitcoin core is downloading and validating the ...
- 65
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1
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39
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Error Reading from Database While Downloading Bitcoin Core Initial Block
I'm a total newbie who's into Bitcoin. I was in the middle of downloading Bitcoin core(78%) when my computer just freeze for hours that I have to force shutdown without closing the Bitcoin Core ...
- 11
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2
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59
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Does running a standard Bitcoin full node mean your node verifies transactions of other members?
If I install Bitcoin Core and run it as a Full Node, will Bitcoin Core automatically verify transactions from other users? So, just by installing a Bitcoin Core Full Node, could I possibly process ...
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49
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how to run bitcoind without downloading entire bitcoin core for development [duplicate]
I am a beginner in bitcoin development and want to contribute to some github repos and for that i need the regtest network for bitcoin but to run that i need bitcoind and bitcoin core to be downloaded ...
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35
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Bitcoin RPC BrokenPipeError on specific block/transaction
I have a simple python app running through the blockchain as follows...
rpc_connection = AuthServiceProxy("http://%s:%s@127.0.0.1:8332"%(rpc_user, rpc_password))
for b in range(blockStart, ...
- 275
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Bitcoin lightnode not return private key for getnewaddress [duplicate]
I have run a bitcoin lightnode (bitcoind)
I use getnewaddress for create new wallet:
bitcoin-cli getnewaddress
This method return to me only wallet address.
How can I access to private key of this ...
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2
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74
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How do I get back into my bitcoin core wallet JSON format no data file
I had 2 wallets long time ago mined on bitcoin core can’t remember JSON that well or what my wallet descriptors was. I did use bip 39 but not giving me my addresses back on electrum wallet please help ...
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39
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Change addresses in old backups
I have a very old wallet backup, from 2011, from bitcoin-qt, I imported it to bitcoin core, but I seem to have only one address, seems that I have no change addresses in the imported data.
Is the ...
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Transaction Wallet-Address extraction
When taking a look at the blk.dat files I am confused about how I would go about getting sender(s) and receiver(s). It is clear to me that if I have multiple inputs / outputs that there might be ...
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Edge cases when dealing with incoming Bitcoin transactions
I have an app that accepts Bitcoin payments. After some research I've settled with using Bitcoin Core's bitcoind with RPC to manage new addresses and verify for new transactions for those addresses.
...
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Can Bitcoin survive without Bitcoin Core?
See:
Feb. 16, 2023
https://www.wsj.com/articles/bitcoin-core-maintainers-crypto-7b93804
Not sure if this is considered a "hit piece". But this is classic MSM. Writing a superficially neutral ...
user140270
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Spend from multiple P2SH addresses with Bitcoin Core
I have P2SH wallet keys from block io backup. The keys and the redeem script example:
BIP32 Public Key:
xpub661MyMwAqRbcGWq****************************************...
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60
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Low number from getconnectioncount
I have been running my bitcoin node for about 24 hours now and I'm hovering at 54 active connections. However, I thought that I would be at 125. Why is it that I'm not exceeding this number? ...
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2
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206
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Downgrading Bitcoin Core 24.99 (latest source code) to 24.0.1
I wanted to build Bitcoin Core myself, so I followed this official guide, but in the process I failed to realize that by cloning the git repo I would just get the latest source code, not the latest ...
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63
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Bitcoin Core wallet: two people with the same passphrase?
I set up the Bitcoin Core wallet and set up a passphrase to access the wallet. It seems to be the only way/needed input to access my wallet.
The passphrase was NOT randomly autogenerated as I was ...
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Transactions remain unconfirmed, even with 10X recommended 2 block BTC/kB
I have never been able to successfully send BTC from my wallet in Bitcoin Core. I'm sure this question has been asked before, but I could not find a sufficient match to my problem, due to most ...
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What is the purpose of BIP32 derivation paths in PSBT?
Does the wallet software use the Bip32 derivation paths to generate the partial signature map?
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What could be the reason that my node syncs so slowly during Header Synchronization?
I¹ am trying to sync Bitcoin Core v24.0.1 on my Desktop with 16 GB RAM and an Intel Core i7-7700HQ processor, but it is taking forever even to get past the header synchronization. It tells me that it ...
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How to track down OOM?
Since a while LND on m Bitcoin Node is restarting weekly a I get an OOM:
Feb 12 21:07:24 umbrel kernel: node invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
Feb ...
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Efficiency of storing/querying transactions in a relational database
I have a full node, and have written some limited python programs with bitcoinrpc. I want to start doing slightly more ambitious things now, e.g. visualisations across the entire blockchain (possibly ...
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How can I use the RPC API on Mac?
This might be simple question but I would highly appreciate if anyone can bring their wisdom on this.
If you install bitcoin-core software through https://bitcoincore.org/, it gives you dmg file that ...
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Are there public RPC node providers?
Are there public RPC node providers similar to Alchemy or Ankr, but for Bitcoin?
I just want to query basic block data and so on without having to manage my own full node. Security does not matter in ...
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How to gpg verify my bitcoin core download step by step on ubuntu server?
I am a newbie when it comes to setting up a bitcoin node but I am trying to gpg verify my bitcoin core download the pub keys to do so are no longer available. I have tried doing my own research but I ...
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How long does it normally take to set up a test node? How much of your disk is utilized?
I did a complete factory reset on my computer and simply started over. I have a Aorus 5SE with windows 11. I am using VirtualBox 7.0.6 and Ubuntu 20.04.
My new virtual machine has 4GB of base memory, ...
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2
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24
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GUI won't open on rapsberry pi, Vnc viewer
I am trying to run bitcoin core on a raspberry pi. Through vnc viewer. When I try to run bitcoin-qt I get
Qt.qpa.xcb: xkeyboard extension not present on the x server
X11 connection broke error 4, did ...
