Questions tagged [bitcoind]

This tag should be used for questions related to bitcoind, the command-line software for Bitcoin Core. It stands for "Bitcoin Daemon" where a daemon is any computer process which runs in the background ("service" in Windows terminology).

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Bitcoin Core ZMQ “hashTx”

Bitcoin Core ZMQ messaging system has hashtx along with 4 other topics. But nowhere it is documented whether the transactions that comes from hashtx are confirmed transactions which are added in a ...
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bitcoincore connect

I have a problem with bitcoin node is that when I want to get out of the full node bitcoin server. I ran this method and it does not work curl --user myusername --data-binary '{"jsonrpc": &...
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Difference between bitcoin-cli getnetworkinfo version and bitcoind --version

I tried to upgrade bitcoin core from 0.18.0 to 0.20.0. When I ask for the version through bitcoind bitcoind --version it prints Bitcoin Core version v0.20.0 but if I ask for the version through ...
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Score value of my node is not rising

I'm running Bitcoin Core 0.20.1 in Debian Buster. I run the daemon behind Tor network. My current settings are: /etc/tor/torrc SOCKSPort 9005 ControlPort 9501 HiddenServiceDir/var/lib/tor/bitcoin-...
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what does segwit remove?

It's said that Segwit removes signature data from transactions which makes block have more space for more transactions. Question 1) If SegWit removes signature data, where does it put it exactly ? ...
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how does node remove conflicting transactions from memory pool?

Sorry for the long text. This is just my observation and was wondering if you could let me know if I am correct or not. Case 1) Let's say minerA and minerB both have the same transaction in their ...
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1answer
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how does node create UTXO from blockchain for the first time?

Let's say I am a new node. I try to synch with the full node to grab the whole blockchain. Now, I synced with it .It's time for my node to create UTXO database .. How does it do this exactly so that ...
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How do you correctly expose the RPC port with bitcoind running in WSL2-backed docker?

I'm trying to run bitcoind in a docker container backed by Windows 10/WSL2 using Docker Desktop. I'm using the ruimarinho/bitcoin-core:0.20.1-alpine image defined here: https://github.com/ruimarinho/...
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Bitcoin “scantxoutset” rpc command return response too slow

For one of our decentralized mobile wallet, We need to fetch balance of imported BTC address quickly. After lot of research on google then I found Bitcoin deamon rpc command "scantxoutset", ...
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how does GHOST protocol really work?

I am trying to wrap my head around GHOST protocol... I know it's too much to read, but not my fault. It's GHOST that's complicated (i guess) As I read, it's said that: instead of a longest chain ...
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how does bitcoin's 6 confirmation really help?

I've read the following: transaction is “confirmed” once it is buried 6 blocks into the blockchain. This is taken to be a sufficient proof of work such that reversing 6 blocks to double spend coins ...
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easybitcoin.php get transactions with 0 confirmations

i use easybitcoin.php (JSON RPC) script for generating and checking addresses, and i have a problem because i cant get incoming transaction with 0 confirmations, it is any way to show this using ...
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how does node validate scriptSig

Let's say I sent some BTC to Bob, so I created a transaction (forget about scriptPubKey) since let's say I was able to prove it by executing scriptPubKey. so After I sent BTC to BOB, new transaction's ...
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how does bitcoin know which one is utxo? [duplicate]

Let's say John gave 5 BTC to me. So, John took his unspent outputs and put it into inputs to create a transaction. Let's say John already had a transaction which was holding exactly that amount of ...
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ElectrumX returning 0 balance

I have a running full bitcoin node (txindex=1). I also setup electrumx and it has fully synced with current blockchain state. Here's the log : INFO:LocalRPC:[2] RPC 127.0.0.1:44806, 0 total ...
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Insight package: Cannot connect to local nodes on testnet

I have a local blockchain network based on bitcoin that runs on my local machine. I updated the bitcore.config.json file to support my nodes. When I'm trying to see the blocks at the browser at ...
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Address starting with 2, what mode I am in?

I am using https://github.com/freewil/bitcoin-testnet-box to run bitcoind in docker to test signing of transactions. make start tells me the bitcoind is started without -regtest flag. See https://...
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Change difficulty using bitcoin-cli/bitcoind in regtest mode

Is there an RPC command which would allow me to generate blocks under a given difficulty? For instance, I would like to do something like this: bitcoind -daemon -regtest bitcoin-cli -regtest ...
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Stopping bitcoind on mac

One of my kids while learning more about bitcoin started bitcoind on my mac. Now I am unable to stop it. In my activity monitor, it shows a process named "bitcoind". I have stopped that ...
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bitcoind RPC methods missing on Debian

Originally I installed .bitcoind using --disable-wallet then I later recompiled it with wallet. Not sure if that's to blame or how to troubleshoot. Commands like this work: bitcoin-cli ...
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Depends: libgcc-s1 (>=3.0) but it is not installable (Bitcoind wallet dependency problem on Debian)

On Debian I successfully compiled .bitcoind without a wallet, but now I need the wallet. ./configure tells me I need Berkeley CXX headers. Searching for how to do this on Debian brings up a bunch of ...
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1answer
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Add wallet feature to bitcoind (full node) after installation with --disable-wallet

I installed bitcoind with this configuration: `./configure --without-gui --disable-wallet` However, after it finished downloading the blockchain for a week, now I realize I actually do need the ...
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How do I withdraw from an address

I made a Crypto purchase from Shapeshift yesterday, which was fulfilled by one of their partners called BANXA. I just received an email saying "Your order has been fulfilled and you will receive ...
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restore wallet using hd seed before 0.17.0

Hd wallets are supported from v0.13.0. Currently it is easy to save hd seed and restore a wallet from it (due to changes in v0.17.0 and v0.18.0): dumpwallet (read hdseed from it) createwallet (blank ...
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bitcoind: How to get rawblock data with ZeroMQ

I am trying to use the zeromq api for bitcoind to get rawblock but its not working with the code I've provided below. I am able to get hashtx and rawtx if I remove the filter but not hashblock and ...
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1answer
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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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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
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cpuminer: Running two nodes -The requested URL returned error: 500 Internal Server Error, json_rpc_call failed, retry after 30 seconds

I'm trying to mine new blocks using cpuminer. My blockchain network runs on localhost on the testnet network with two nodes. When I'm trying to mine the blocks I'm receiving the following error: * ...
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2answers
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How to raise the bad-txns-vout-negative error?

I wanted to replicate the bad-txns-vout-negative error scenario. I tried the following but getting 'Amount out of range' only: Here is the command i tried: bitcoin-cli -named createrawtransaction ...
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1answer
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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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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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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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How do I open bx-linux-x64-qrcode via the command line on Ubuntu 20.0 in order to get access to the BX command tool

I have tried for three days now to get access to the BX commands, via the libbitcoin-explorer library. I have gone through various tutorials and have tried the install process and i do have a build-...
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1answer
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Connect C-lightning to a remote bitcoind through tor

I would like to connect my C-lightning node to a remote Bitcoin node, in order to be able to run lightningd on a small storage capacity VPS. I could achieve this by using clearnet connection and ...
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Blockchain.info “Too Many Requests” - Alternative solutions that can be hosted by myself

I'm trying to build out a Bitcoin service that requires me to query address balances and other data. So far I've been just using blockchain.info to do these request, but lately i'm hitting the too ...
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1answer
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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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Cannot start C-lightning after reboot

I have problems starting up C-lightning's lightningd on Debian Buster under vagrant. Steps I followed: Fresh install bitcoind Install lightningd Run rpc commands - all good. Reboot system Get the ...
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Getting “Invalid or non-wallet transaction id” error on transactions definitely from wallet

Very recently (within the past hour), I've been unable to get transactions for wallet addresses. It also returns 0 received when running getreceivedbyaddress and entering an address that I've ...
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Is there a way to fetch all transactions in a block via electrum protocol?

Quickly surfing through the list of electrum methods, looks like not, and I will have to use getblock from bitcoind json-rpc. Is there a better way?
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1answer
85 views

Why is my bitcoin core not downloading any blocks?

I am using Centos 7 and I installed the newest version of bitcoin core. I just want to run a full node to download all the blocks. According to their documentation, the first time we start bitcoin ...
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0answers
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How to accelerate mempool data access with bitcoind

What could I do to accelerate access to the data I get when I call for example: bitcoin-cli getblocktemplate ? If I would like to be able to be the fisrt one who get information about all the new tx ...
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1answer
53 views

Bitcoin V0.1 Not Connected

My Bitcoin V 0.1 says, "not connected" when I try to generate coins. I have ensured the port is connected through the firewall. Also, I have read that V 0.1.3 corrected this problem. However,...
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1answer
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How do I start -testnet in -deprecatedrpc to test a script?

I hope all is well during our COVID-19 pandemic. My question: How do I start "bitcoind -testnet" in "-deprecatedrpc=signtransaction" mode? Do I simply start it the same way without ...
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1answer
45 views

Bitcoincore listrecievedbyaddress doesn’t work

I am trying to run bitcoin full node on testnet. I have downloaded ant started bitcoind with such config: testnet=1 regtest=0 server=1 listen=0 I'v generated new address ...
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1answer
125 views

How to recover my lost cryptomultipler money? [closed]

I was trading in a cryptomultipler some one shared with me, to invest my money in there. They told me that my investment will grow, but after that they been asking me many charges until I sent them ...
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How Do I Fix This Error Without Loosing Stored Blocks On Pc?

I opened my Bitcoin Core program today on my Windows 7 PC via an external hard disk (1 TB) and I found the following error: MinGW Runtime Assertion Assertion Failed! Program: E:\Blockchain\bitcoin-qt....
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How can I add the MySQL C++ connector to Bitcoin Makefile?

I'm trying to add a custom function to my bitcoin client that queries a mysql db. I followed this guide for the basic: https://technology.finra.org/code/compile-run-customize-your-own-bitcoin-client....
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Wallet.dat bitcoin cash? [closed]

I had 20 btc in 2012, and I spent it all in December 2017. I heard there was a fork for Bitcoin cash. How do I get my 20 bitcoin cash out of my wallet.dat ?
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How i can protected my bitcoincore project?

I have two servers. The backend is located on one, the bitcoincore is located on the second. Becken on a laravel, when requesting Bitcoin core, I specify the server ip and pass the username and ...
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1answer
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How accurate is 'estimatesmartfee' in bitcoin-core?

Method of estimatesmartfee is very simple and easy to use and understand. But I want to know how accurate this function really is? It would be great help if you can provide a link to article or ...

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