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Questions tagged [bitcoin-core]

A full node implementation of the Bitcoin protocol with a GUI and a wallet. 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".

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scantxoutset timing out

I have extremely simple python code to use scantxoutset. The problem is that when I debug in pycharm it keeps timing out. rpc_connection = rpcConnector.rpcConnect() json_req = [{"desc": &...
user2880722's user avatar
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Should I stop bitcoind when backing up chainstate/ and blocks/ directories?

This is how one might back up their Bitcoin Core data directories in order to save time on syncing in the future: #!/usr/bin/bash local_d=/root/btc_db rsync -av --delete chainstate "$local_d&...
John Smith's user avatar
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1 answer
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How to show every UTXOs of each address in bitcoin core?

We only get balance of all addresses in bitcoin core, but how to show every UTXOs of each address in bitcoin core?
foolbear's user avatar
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1 answer
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from which address when I send some bitcoin in bitcoin core?

I send some bitcoins using bitcoin core, but not know which address sending from? for example: address A: 1 bitcoin address B: 2 bitcoins 3 cases: sending <=1 bitcoin sending >1, <=2 ...
foolbear's user avatar
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1 answer
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Is it possible to recover the password from bitcoin.core other than guessing?

У меня есть монеты в кошельке биткой коре,есть дат файл и знаю что пароль из 12 заглавных английских букв и знаю seed phrase, как мне сделать транзакцию или вастоновить кошелек, пароль?
Евгений 's user avatar
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1 answer
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Is there a method in the Bitcoin RPC API to view all transaction records of a given address?

I used the listtransactions method to get transaction records, but it returned an empty collection. Is it a configuration file problem or other reasons?
muxi's user avatar
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0 answers
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REST API documentation

I'm trying to use REST api of bitcoin core, i can do basic things such as getting latest block, or getting a transaction detail. But I couldn't find detailed explanation of the REST API. I checked the ...
Dante Alighieri's user avatar
0 votes
2 answers
43 views

Bitcoin-qt and Bitcoind see bitcoin.conf file differently

Using Bitcoin core 25.1 on Raspberry Pi. Have .bitcoin dir on external drive. Bitcoin-25.1 package after unarchiving came with bin folder containing Bitcoin-QT and Bitcoind binary files. Bitcoin.conf ...
jurijus01's user avatar
2 votes
1 answer
125 views

Moving the entire directory to new location for Bitcoin Core CLI

I use Bitcoin CLI and not the QT one, when syncing i used a external SSD to store blocksdata in SSD, obviously noob me didnt know of datadir function Now my Chainstate, txindex are in roaming folder ...
123demigod's user avatar
2 votes
1 answer
118 views

What criteria does Bitcoin Core use to create block templates?

I wonder how Bitcoin Core chooses which transactions are added to the template of a block when you call getblocktemplate. Is the mempool sorted by fee rate in sat/vB and selects transactions in an ...
polespinasa's user avatar
6 votes
3 answers
715 views

What are the risks of running a pre-SegWit node (0.12.1)?

Many in the anti-spam faction have contemplated running a pre-SegWit node. But they're told that it is an insecure downgrade and a detrimental idea. So, Is it safe to assume that Bitcoin is not soft-...
WhoIsNinja's user avatar
1 vote
2 answers
93 views

How to use Bitcoin Core GUI to view all transaction records of a certain address?

I want to implement this function: given a Bitcoin address, what should I do to view all transaction records of this address?
muxi's user avatar
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-3 votes
1 answer
56 views

How many ways are there to Read Satoshi era Wallets?

I've come acrossed a few - running the original Satoshi v.0.1.0 through v.0.1.5 Clients all the way up to Satoshi v.0.7.x - I believe all of these can read Original Satoshi Wallet.dat(s) - I have a ...
Thasthllfe's user avatar
1 vote
0 answers
32 views

Reclaim disk space in Bitcoin Core full node

I have a few stacks: full-node Bitcoin Core + Fulcrum. Because of Fulcrum, I have to use txindex, so it's not a pruning node. The current disk size is 644 GiB for all Bitcoin Core nodes. Do you know ...
BigBoar's user avatar
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3 votes
1 answer
85 views

How does the initialblockdownload field in the getblockchaininfo RPC work?

Let's say I have a fully synced node that returns "initialblockdownload": false. If I turn it off, will it show "initialblockdownload": true when I start the node again? In other ...
sanket1729's user avatar
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2 votes
1 answer
101 views

Hardware wallet interface

Why would you use the hardware wallet interface as opposed to the software that comes with the hardware wallet, such as ledger live or trezor suite? Is HWI better in some way?
Eoin's user avatar
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1 vote
2 answers
325 views

Recover bitcoin from wallet.dat from 2012 (probably not backed up properly)

Ok. So I have a bitcoin core wallet from around August, 2012. I don't think I backed it up "properly" in that I just copied the wallet.dat file, zipped it and stuck it in cloud storage. I ...
Jon Grah's user avatar
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2 votes
2 answers
183 views

Enabling Bitcoin Core Wallet during configuration? Getting "method not found"

The problem: I'm getting "Method not found" when running bitcoin-cli getwalletinfo on a new install. I've compiled and installed Bitcoin Core 26.0 from source on a Ubuntu system, following ...
Pyromancer's user avatar
0 votes
1 answer
220 views

List of Bitcoin exchanges available in 2009

hope you can help. I am helping a friend to find their Bitcoin wallet. The wallet is believed to have been created in 2009 and the coins were transferred to a Bitcoin exchange. My question is what ...
Luka's user avatar
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2 votes
1 answer
51 views

Which index in Bitcoin Core is useful for self-custody wallets?

I am setting a new full node for self custody. But I don't know which index I should enable in Bitcoin Core. If I want to make wallet re-scan faster, and don't want unnecessary storage/operational ...
秦入江's user avatar
1 vote
0 answers
56 views

What determines the order of transactions in a block?

I've been looking at the live mempool on mempool.space, and while most transactions are sorted in order of highest sat/vB to lowest, I've noticed some that standout with extremely high sat/vB but are ...
Blank Dev's user avatar
-2 votes
1 answer
40 views

Build bitcoin-qt.exe on ubuntu 18.4

0.8.1 version and when i compile this version but successfully compiled but now i want to generate the window executable file(.exe) from bitcoin-0.8.1 version. so latest version and older bitcoin-0.8....
NotRin's user avatar
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0 votes
1 answer
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bitcoin block time analysis with conjuction to propagation

For both scenarios that I will describe below, assume the 2 things. that network propagation for blocks always 6 seconds. that we start looking at my analysis from time = t0 and at that t0, every ...
Giorgi Lagidze's user avatar
2 votes
1 answer
64 views

Using sendtoaddress is failing using json-rpc and I don't know why

The steps i followed are i first load the wallet in a different method which works, then i check the balance of the wallet in a different method which works, and then I call this sendbitcoin method(...
Tim Lieberman's user avatar
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0 answers
40 views

High end electrum servers directly reading blk.dat files

These days, high end electrum servers directly read blk.dat files straight from Bitcoin Core's blocks folder in the process of creating their initial internal indexes. I guess they also do in the ...
RooSoft's user avatar
  • 157
0 votes
1 answer
98 views

Mempool not accepting transactions: 'reject-reason': 'insufficient fee'

I'm using Bitcoin Core, and for some reason, it doesn't want to accept transactions when I already have other transactions in the mempool, even if those transactions are using different UTxOs and they ...
Nahum Maurice's user avatar
1 vote
1 answer
71 views

getbalances rpc call timeout

I have a Bitcoin node having over 800K addresses. Recently I have been facing an issue with getbalances RPC call as it times out. I am using timeout as 100 seconds. I can see that if I increase the ...
Arshad Munir's user avatar
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0 answers
57 views

What version of the bitcoin wallet was in 2010 and is there an official resource with software for this?

please describe detail how safely open and Bitcoin wallet files for desktop from 2010?
Ganz's user avatar
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2 votes
1 answer
52 views

Where is the data directory from the initial Bitcoin Core Welcome prompt saved on a Mac?

When you start Bitcoin Core for the first time on a Mac, you are prompted to specify a custom data directory. However, it is not clear where this setting is stored and the "Welcome" screen ...
girevik's user avatar
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1 vote
1 answer
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will bitcoind accept, hold, and rebroadcast a 1 sat/vbyte raw transaction via the RPC for a local wallet that won't fit in the mempool when submitted?

The questions What if the mempool exceeds 300 MB? , Does my node rebroadcast its mempool transactions on startup? , Why rebroadcasting transactions in the Bitcoin Core? , and rebroadcast unconfirmed ...
user1748155's user avatar
-2 votes
1 answer
46 views

What happened to this Bitcoin transaction? Block fee lost?

I'm writing a bitcoin blockchain indexer. I've indexed every block hash and now I'm working on indexing each transaction in each block. I've been finding some weird stuff here and there and I don't ...
user2880722's user avatar
3 votes
1 answer
96 views

Specify options as startup flag or conf file in bitcoin core?

Can I specify all startup options like -nodebuglogfile or -txindex in bitcoin.conf file as nodebuglogfile = 0, txindex = 0? Can all startup options/flags without any parameter equivalent to setting ...
sanket1729's user avatar
  • 1,402
0 votes
0 answers
148 views

how to get the private key in Bitcoin Core 26.0.0 and how to create a legacy wallet

i had tried many methods but nothing help me , by using bitcoind -deprecatedrpc=create_bdb i think i had installed the Berkeley DB please help me to solve the problem
N.dhanush raj's user avatar
0 votes
0 answers
26 views

Browse a Node (Bitcoin Core) from xpub of any wallet to get the balance

I use my umbrel node with my wallet. For developing reasons i run a Bitcoin Core Node. Now i connect to my Bitcoin Core Node, but I can't figure how to scan an address. All the methods i found https:/...
donbolli's user avatar
2 votes
1 answer
73 views

RPC Batch call abruptly stopped working

I've had this code that was working less than a week ago. No changes at all on my PC or in the code and it just abruptly stopped working normal (single) RPC calls work fine but batch does not. All ...
user2880722's user avatar
5 votes
1 answer
2k views

Why is a bitcoin node pruned to 550MB taking up 10GB+?

Why is a bitcoin node pruned to 550MB taking up 10GB+? $ du -smc blocks chainstate index | sort -g 0 index 849 blocks 10325 chainstate 11174 total
Shovas's user avatar
  • 185
3 votes
1 answer
168 views

Loading wallet produces "last wallet synchronisation goes beyond pruned data" after a few days on a pruned bitcoin core node

How do I run a pruned Bitcoin Core node on linux indefinitely without running into this wallet error? I know it's possible from the Bitcoin Core app on Windows but I'm not sure how to achieve it on ...
Shovas's user avatar
  • 185
2 votes
1 answer
62 views

Why instructions to upgrade Bitcoin Core do not require all new files?

On the BitcoinCore web page, instructions are clear for the upgrade procedure: “If you are running an older version, shut it down. Wait until it has completely shut down … just copy over bitcoind / ...
Fred Cailloux's user avatar
1 vote
0 answers
20 views

Why do I keep corrupting the chain state after many RPC calls?

I’m experimenting with the blockchain, writing a block indexer / local node monitor. In my testing I wrote a small python script that uses AuthServiceProxy.batch() to get the hash of each block. After ...
James's user avatar
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0 votes
1 answer
48 views

Raw Transaction decoding fails on signet but decodes fine in BlockCypher decoder

Type of transaction: p2wpkh transaction creating a multisig (p2wsh) on signet. Error:TX must have atleast one inputs. Output on online decoder { "addresses": [ "...
Prabhat Verma's user avatar
-1 votes
2 answers
57 views

Can I add Lightning-Core to bitcoin-qt full node?

I am interested in running lightning core, but the instructions say Bitcoind is required. I am running a full bitcoin-qt node on Linux Mint Ubuntu. Will lightning core work with qt or, if not, is ...
user148239's user avatar
0 votes
0 answers
25 views

Running bitcoin core functional tests [duplicate]

How do you run the test at test/functional/test_runner.py in Bitcoin core downloaded and installed from the Ubuntu snap store?
Eoin's user avatar
  • 349
0 votes
1 answer
74 views

Bit coin core Settings/Receiving addresses

Under these settings in bitcoin core. does imported addresses (watch-only) appear under the settings as an official receiving address or it appears there because imported a wallet to watch.
Zeata Hazuki's user avatar
0 votes
1 answer
38 views

RPC to Bitcoin Core

The research showed me that it is difficult to connect to Umbrel using the clear net. So I installed Bitcoin Core on my machine and synced the Blockchain. Now I get ConnectionRefusedError: [Errno 111] ...
donbolli's user avatar
0 votes
1 answer
31 views

I found an incorrect translation in Bitcoin Core, how can I suggest a fix?

In the French version of the Bitcoin Core (v26), a column in the peer tab is called "Age" which means age. It is wrong because Bitcoin Core is using peer which have no age, it is not as ...
Romain's user avatar
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0 votes
1 answer
267 views

Example working bitcoin.conf file

I am unable to connect to my server despite trying for days. I have asked posted questions and my .conf file and my python code and despite this no one has been able to give me a reason why it is not ...
The Journey's user avatar
0 votes
3 answers
327 views

How to import legacy wallet from a private key

The private key is a Base58 format, with uncompressed public key. The private key is a mini key with 22 characters. I bought Bitcoin in February 2009 and had forgotten what I had invested in,founded ...
21mbk's user avatar
  • 1
2 votes
0 answers
99 views

Bitcoin Core RPC server not working

I have downloaded and installed and got up and running a bitcoin core node, and it is running fine as far as people are connecting to it on port 8333 just fine. However I can't seem to connect to it ...
The Journey's user avatar
2 votes
0 answers
63 views

What are the extra peers.dat files?

I am restarting my bitcoin node. I noticed there are more than one peers.dat files, and many don't end in .dat. Should these be deleted? Is my node compromised? Any explanation is appreciated. Thank ...
foster's user avatar
  • 31
1 vote
1 answer
124 views

Bitcoin Core v.26 crashes or closes unexpectely in Ubuntu Linux os

On Ubuntu my bitcoin core v.26 closes every few minutes without saving the downloaded blocks unless I close it first. Maybe a bug but how do I fix this? I updated version 22 to v.26 because v.22 was ...
Cara's user avatar
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