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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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2
votes
1answer
40 views

Where change the size of the window in Bitcoin code?

I already try changeing the height and width parameters of the forms in src/qt/forms but nothing changes, where else i need to look?
0
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0answers
26 views

wallet.dat corrupt. Try using the wallet tool bitcoin-wallet to salvage or restoring a backup

I'm trying to restore an old wallet, using bitcoin-qt 0.21 but I'm getting the following error on startup: wallet.dat corrupt. Try using the wallet tool bitcoin-wallet to salvage or restoring a backup ...
1
vote
1answer
32 views

Why are adresses not showing up in gettxout?

I have a bitcoin node but whenever i try to gettxout i get this response: user@bitcoin:~# bitcoin-cli gettxout "0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098" 0 { "...
0
votes
0answers
33 views

How can i locate my deceased husbands bitcoin? [duplicate]

My husband passed away 4 years ago and he bought a lot of shares in bitcoin when it first became a thing. How can i find out who he purchased these through in order to accuquire about his shares?
0
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1answer
36 views

Bitcoind information about the input and output

Im trying to get the wallets/accounts the money got sent to. But getrawtransaction does not give any information about the reciever or sender
0
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0answers
29 views

Debugging does not work after v0.21 tag

If I clone Bitcoin Core from the repository and switch to version v0.21 (git checkout tags/v0.21.0), the debugging (gdb src/qt/bitcoin-qt or gdb src/bitcoind) will work as expected. But If I clone the ...
0
votes
1answer
21 views

listtransactions weird offset workflow

I need to extract last wallet transaction. But seems listtransaction has some wrong logic. When I perform this function listtransactions '*' 50 9 it just return me first records not last. In my case ...
1
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0answers
17 views

DB Structure for bitcoin blocks

https://github.com/blockchain-etl/bitcoin-etl#schema I found a library to parse the block data in json format. I want to parse that json and put it into a db to then use that for calculating balances. ...
0
votes
1answer
23 views

aftet sending btc with bitcoin core can i exit after wards?

I have bitcoin core installed on windows with full node running. If I send bitcoin do I need to wait its confirmation before exiting bitcoin core ? can I exit in seconds afterward will it be confirmed ...
0
votes
1answer
52 views

How to create a physical/paper backup for bitcoin-core wallet?

I am using bitcoin-core for my offline storage. In electrum I can do a paper backup by writing down the mnemonics. bitcoin-core seems to be using a different mechanism to generate the wallet. What I ...
0
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0answers
26 views

Im in desperate need of some advice!

I moved money from my wallet to someone elses wallet over a year ago and they said they never recieved it. Im now desperate to track the money down. Ive found it. But its sitting in a wallet and I ...
0
votes
1answer
34 views

How do Blockchain Explorers lookup wallets? [Balance]

How do Blockchain Explorers lookup wallet balances? Im trying to make my own explorer. For example Bitcoin-cli does not have a method (function) to lookup a wallets balance. listtransactions does not ...
4
votes
1answer
107 views

When you make a Bitcoin transaction, can the receiving person (and the world?) really see how much coins you have in the entire wallet?

I really hope that I've got this horribly wrong, but I have to ask... I have this idea, which I base on comments and explanations I've heard over the years, that when you make a Bitcoin transaction, ...
0
votes
1answer
43 views

How to quickly get the target of the next block to be mined from bitcoin-core over RPC?

The target for the next block is available in getblocktemplate but I can not figure out if there is a way to get the target without also getting all of the pending transactions, which can take a very ...
7
votes
1answer
1k views

Should I be worried that bitcoincore.org now suddenly only provides an “unsigned” Bitcoin Core installer?

My security script for downloading and verifying new versions of Bitcoin Core barked at me the other day, when the new v0.21.1 was released. (Which still is nowhere to be found on bitcoin.org, BTW.) ...
0
votes
1answer
36 views

Why does bitcoind have to listen to the public internet when supporting lnd?

I have been part of experimenting with setting up a system to send and receive lightning network payments. The system uses bitcoin-core (bitcoind) and lnd. Initially, the system was set up on a home ...
-3
votes
3answers
131 views

Bitcoin Fraud/Recovery Protocol Proposals

Does Bitcoin plan to implement any Fraud/Loss Prevention in their protocol? I just read a story of how Brokerage Exchange Shapeshift, and Internal Employee stealing private keys from their customers. ...
1
vote
2answers
101 views

Did Bitcoin founders know Bitcoin is not scalable at Base Layer?

Given Bitcoin takes 45 min per Transaction, and consumes lot of energy (around 1 million Visa transactions), https://digiconomist.net/bitcoin-energy-consumption/ This is more of a history question, ...
0
votes
1answer
63 views

Multisig Setup - Pruned Bitcoin Core on Computer vs. Dedicated Hardware

Are there security implications of running a pruned Bitcoin Core node on a personal computer vs. a full Bitcoin Core node on a dedicated hardware device (i.e. Raspberry Pie with Umbrel, myNode, nodl, ...
0
votes
1answer
32 views

Check transaction per block in Bitcoin

what is bitcoin-cli command for checking how many transaction per block ? Thanks you
1
vote
1answer
16 views

What to look for in Bitcoin-core logfile when something bad happens

About a week ago I was trying to reorganise my file structure with Bitcoin Core, I accidentally moved the file before listing it as a backup so when I opened Core, it didn't work. I tried returning ...
0
votes
1answer
25 views

Bitcoin core trying to sign a transaction loaded from psbt file, but getting “could not sign any more inputs” error

I am trying to sign a transaction loaded from psbt file, but I'm getting could not sign any more inputs error. I did it successfully on the first try. However I cannot do it any more now. I changed my ...
0
votes
2answers
108 views

If Lightning Network takes transactions off Blockchain, would that defeat the whole purpose of having a Blockchain ledger?

Currently Bitcoin transactions can take around 45 minutes. If everyone in the world uses Bitcoin, computers would have to consume 1000 of terabytes per Hour. The solution is the Lightning network, ...
0
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0answers
28 views

Sent transaction on 30 march 2021 still unconfirmed in mempool what can i do? [duplicate]

I made small BTC transaction from my bitcoincore wallet to account of Binance on March 30, 2021. I did set the fee low. But i wait a month for the transaction to back to my wallet. But it said still ...
0
votes
1answer
39 views

Can I see the workings (console) of my bitcoin full node?

I have just completed the IBD of my bitcoin full node on Bitcoin Core on Linux. When I open Bitcoin Core, i just get the basic wallet interface. It there anyway of seeing what the node is doing behind ...
-2
votes
1answer
36 views

Multisig Wallet Setup - Security Tradeoffs With Pruned Bitcoin Core Node?

What are the security tradeoffs of running a pruned Bitcoin Core node for a multisig wallet, such as Specter? It seems that using a multisig wallet with a pruned Bitcoin Core node could be a good ...
1
vote
0answers
17 views

Is bitcoin client really downloads the full transaction info? [duplicate]

I started learning bitcoin and found this wiki: https://learnmeabitcoin.com/beginners/network And there is this statement: When you run the client it will connect to other nodes and start downloading ...
0
votes
2answers
68 views

Will Bitcoin copy Best Features of Litecoin, Ripple, if its Open Source?

Proponents of Bitcoin always mention that Bitcoin is Open Source, so if any better cryptocurrency comes along, Bitcoin can just copy those features in their open source. Both Litecoin and Ripple have ...
0
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0answers
14 views

How can i know which utxo in my wallet will be sent? [duplicate]

Assuming that i have several utxos in my wallet. Can i know which utxos will be sent when i request a transaction? For example, there are 3 utxos in my wallet: 3 BTC, 5 BTC, 7 BTC. when i send 1 BTC ...
0
votes
1answer
45 views

Help about BitlyCore

Please I need help. I want to know if anyone knows about BitlyCore.com I have been running the full block for days now and it's just stuck at 87% please I need help.
0
votes
1answer
66 views

What is the difference between signrawtransactionwithwallet vs signrawtransactionwithkey in signing unsigned raw transaction?

I have a bitcoin address generated in bitcoin-core (offline computer) I imported that one address into electrum as a watch-only wallet (online computer) From electrum I created an unsigned transaction ...
1
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0answers
14 views

How to upgrade Bitcoin Core on Mac OS with binaries from tarball?

I want to upgrade to version 0.21.1 from an older version I built from source. However, it is unclear to me how I can upgrade using the .tar.gz file that's available from the Bitcoin Core website. I ...
1
vote
0answers
38 views

Bitcoin core balance won't show up!

I have bitcoin core wallet i havent use since 2013. i let it sync fully now but it won't show my bitcoin balance and this shows up..... Warning: Unknown block versions being mined! It's possible ...
1
vote
1answer
49 views

Public Bitcoin Nodes? [No API]

i've been searching for hours now. Also on StackExchange here. Are there any public nodes that i can connect to using jsonrpc? I want to lookup stuff (im not into generating priv keys or anything) but ...
0
votes
0answers
35 views

Bitly core website not loading [duplicate]

I misplaced my previous laptop, and I got a new one, I downloaded my wallet from Bitly core using my 18 word passphrase, I have been loading the nodes and it got stuck on 87%, I tried visiting the ...
0
votes
1answer
27 views

Balance in bitcoin-qt suddenly significantly diminished after a small transaction?

I had my wallet stored on a storage provider for a while, and recently got a new computer and installed bitcoin-qt and imported my wallet. It said I had about 2 BTC and showed INGOING transactions ...
-1
votes
2answers
134 views

How will upgrades to Bitcoin such as Taproot help allow increase of block sizes?

Bitcoin's block size, hardcoded at 1MB, has been limited by the capabilities of its weakest full nodes. The block size limits the number of transactions on the blockchain outside of Layer 2 solutions, ...
1
vote
1answer
35 views

How much info share bitcoin nodes between other nodes?

1.If we assume bitcoin nodes share the other nodes addresses in the end every node know other nodes adresses right? 2.If we share data through network every node share the same information other ...
1
vote
0answers
44 views

How can I transfer unconfirmed transactions from wallet.dat to a new blockchain wallet

My question may not be very clear since I’m not really an expert in bitcoin and its technology. But in my possession I have just a wallet.dat files with an unconfirmed transaction on it. I followed a ...
0
votes
0answers
48 views

Secure Bitcoin Core [duplicate]

For example, take two PC (online, offline) with the last Bitcoin Core. Online PC has only public keys and the updated blockchain. It will use to watching for balance and create and send transactions. ...
1
vote
2answers
314 views

How to transfer BTC from desktop wallet to mobile wallet (without fees), say using Electrum or Bitcoin Core

I have both Bitcoin Core & Electrum wallets installed on both my desktop & mobile. How do I transfer BTCs from respective desktop to mobile wallets (& vice-versa) directly (i.e., not thru ...
1
vote
0answers
41 views

I got a wallet. dat file, how do I transfer the bitcoin into a new wallet

I have just a wallet.dat files with an unconfirmed transaction on it, can’t remember the backup paraphrase. I linked the wallet.dat in bitcoin core, got the wallet I’d where I check and it shows the ...
1
vote
0answers
34 views

Rate limits Bitcoin Core JSON-RPC

I am trying to brute force using Burp Suite to create wallets in Bitcoin Core with random strings(size:5) containing special characters. Context: https://github.com/bitcoin/bitcoin/issues/21510 ...
1
vote
1answer
86 views

Requested wallet does not exist or is not loaded

I need to perform rpc requests per wallet. Here is my url http://127.0.0.1:18332/wallet/another_wallet/wallet.dat but I get error Requested wallet does not exist or is not loaded I run daemon with ...
0
votes
1answer
80 views

BTC wallet recovery: I have a 17 word backup, what do I do?

I have a 17 word seed phrase from a 10 year old Bitcoin-qt/core? acct, but don't know what tool to use to turn it into a wallet. I also wrote down the 17 letter associated private-key itself. It ...
1
vote
2answers
178 views

fundrawtransaction - what is it?

I find on Internet interested article. How I understand the raw transaction can be created simpler without fundrawtransaction. bitcoin-cli listunspent [misconf=1] [max_number_confirmation=99999999] ''...
2
votes
1answer
62 views

Mining Bitcoin heats up my Computer. why?

I am Trying to mining bit coins from last 1 year. but every time i turn on the mining it slows down my computer and heat it up very badly that it eventually stops working some times. How To get rid of ...
1
vote
0answers
24 views

I need help figuring out what happened with my BFGminer overnight

I'm a newbie to crypto and was experimenting with usb erupters because I was getting into ETH mining with my rig and wanted to test it on something less risky. I ran ck pool for my USB erupter just to ...
1
vote
1answer
35 views

Can I have a fee rate lower than the one suggested by estimatesmartfee economical

I know what the inputs and outputs are, the weight of the transaction. At the moment I have $1400 divided into addresses (of my own bitcoin-node). When using sendtoaddress, 24 blocks, ECONOMICAL he ...
1
vote
0answers
49 views

Bitcoin Core Wallet - Invalid Transaction

A few months ago I tried to transfer my bitcoin but the transaction fee was too low which resulted in an Invalid Transaction. After eading about similar problems in this forum it is clear to me that ...

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