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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).

1
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1answer
198 views

Bitcoin RPC returning 401

I am using node-bitcoin-rpc to do some api calls to bitcoind, but I am getting 401 error. I know this simply means unauthorized, but I have no authorization enable in my config file. Howerver I can ...
1
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2answers
287 views

How to migrate bitcoin node from one computer to another

IN my old computer some addresses have bitcoin and it is showing on blockchain. When i am trying to get balance of the same addresses in my new computer where i have synced bitcoin full node ,I ...
0
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1answer
229 views

bitcoin public key vs public key hash vs. pub key [duplicate]

I am not talking about the privacy related concerns just the security aspect and the ability for someone to 'break my private key'. The addresses that my wallet generates are p2pkh addresses. If i ...
0
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0answers
197 views

Having trouble syncing blockchain

I'm running a Bitcoin and LND node on my Raspberry Pi and had it up and running successfully for a few months now. However, I've just changed routers from a Netgear N900 to a Google Wifi Router and ...
2
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2answers
44 views

How to watch lots of wallet addresses for new bitcoin transactions?

I need to watch many wallet addresses for new bitcoin transactions as they enter new blocks. I also need this transaction data to make updates on my end What are my options?
1
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1answer
179 views

Bitcoind walletnotify

Does wallet notify performs actions also on old transactions? In case that my node went offline for some reason, Once its back online I will get notifications from wallet notify for the transactions ...
0
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1answer
206 views

Connecting to Regtest

I want to connect to a local node that I have set up in regtest mode using bitcoind. The node I am connection from is non bitcoind and I need to set the port that I want the peer discovery to take ...
0
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0answers
122 views

Bitcoin Core install on Inmotion Hosting VPS server failing

I'm trying to install a full node on a VPS instance of Inmotion Hosting linux server. I have no issues with downloading and installing the Bitcoin Core files from Bitcoin.org, but upon trying to start ...
1
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1answer
23 views

Are redeemScripts private?

When I do createmultisig in bitcoin core, I get the redeemscript as output. I of course want to save this information, but can I put this in my regular database or do I need to take extra precaution ...
0
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1answer
516 views

What is the right way to restart bitcoind if it crashes?

I am very new to this and apologies if it has been asked before but I can't seem to find a clear answer after looking extensively. I am trying to run a full node. I started bitcoind -daemon and ...
1
vote
1answer
414 views

Run bitcoind as a service in windows

Motivation I don't want to have to have bitcoin-qt running. I want the control and error handling capabilities that come when something is running as a service. I want bitcoind to start when windows ...
2
votes
1answer
261 views

Issue with getrawtransaction txindex and reindex

I am running Bitcoin Core Deamon version v0.16.0.0 on Ubuntu and need to call the getrawtransaction command for some TX. To use the getrawtransaction I need to run bitcoin core with txindex=1. But ...
0
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1answer
851 views

How to run BitcoinCash node?

How to install and Launch Bitcoin Cash daemon on machine? I have already synchronized full BitCoin node, Here is the link bitcoin.org from here i learn how to setup BTC node I also want to run ...
0
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0answers
23 views

Bitcoin Paymen php

How to check when a address get paid in php . I m using this to get api into php and $rpcUser = "wallet1"; $rpcPass = "12345"; $url = "http://localhost:8888"; $epic = new Bitcoin($...
0
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0answers
40 views

Running a full node in the cloud - on top of FUSE/s3 filesystem

I'm trying to figure out the cheapest way to run a full node in the cloud (specifically AWS). In terms of compute resources, a t2.nano should probably be enough, after the initial syncing of the ...
0
votes
1answer
30 views

which indicates the correct total received bitcoins, blockchan.info or bitcoind [closed]

I'm trying to see how much bitcoins I've received via bitcoind's one method, getreceivedbyaddress specifying a certain address, and after knowing the amount of bitcoins, I soon realized that such as ...
0
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1answer
38 views

Bitcoin RPC Call [closed]

I want to monitoring 3000 address continuously for BTC. So I am using third party API for get BTC balance. but all API has limitations for access. Can I get an API reference where I can call API ...
1
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0answers
37 views

How can a miner know how many blocks mined by him?

I am working on an altcoin based on bitcoin-core, version 0.12.1 (this version including setgenerate). Is their an option for a miner to know (using bitcoin-cli) how many blocks mined by him (after ...
0
votes
1answer
257 views

How to Get Unspent Transaction Outputs from Node

There is one API called listunspent, however it doesn't return any outputs, and some threads say that it may be because the address is not imported into the node's wallet. Then how to retrieve the ...
0
votes
1answer
41 views

How to create (many address)/receive/send bitcoin without download blockchain?

I need to create a lot of address on my wallet to get bitcoin. Check balance and make transfers. I do not have a hard disk of 200 GB, can I use bitcoin without downloading the blockchain? Need ...
0
votes
1answer
63 views

Can I generate an address without using bitcoin core?

I am running bitcoin core in my mode. I am using getnewaddress to generate an address and then I am using unspent to get the unspent of an address which returns the unspent successfully. If I created ...
3
votes
1answer
251 views

Can we derive parent’s private key using child’s private key?

In the book named Mastering Bitcoin by Andreas, the author described the usage of derived child keys. One thing I noted was that he said(page 108), The derivation function is a one-way function, ...
0
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0answers
132 views

Practical Implementation of Liquidity Provider for Crypto Exchange

I understood about the basics of the liquidity provider ,but I wanted to know about what are the ways to provide the liquidity provider for my exchange. Do I need to practically implement it? How can ...
0
votes
1answer
231 views

How to get public and private keys by giving seed explicitly?

I am using bitcore to generate the public and private keys. I am using 'getnewaddress' method to generate a public address and dumpprivkey to generate a private key. When I am calling the ...
0
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2answers
75 views

Providing Liquidity in CryptoCurrency Exchange!

Can anybody give some idea about the issue of providing liquidity to the users for creating a cryptocurrency exchange ? Thanks!
0
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1answer
128 views

Bitcoin core: connect to specific peers from file

I want to launch Bitcoin core connecting to a specific list of peers. I can do this using connect: bitcoind -connect=<IP1> -connect=<IP2> Is there a way I can put the peers I want to ...
2
votes
0answers
158 views

How to hard fork a altcoin? [closed]

I have created a altcoin using the reference of LTC and already 170k blocks were formed. Now i want to change the conformation time as well as i want the difficulty to start from base difficulty....
0
votes
3answers
67 views

How to do atomic swap with bitcoin?

I have read about the ATOMIC SWAP, I could find only the concept level and could not find technically. Is there any doc about atomic swap to achieve that technically and code sources to achieve this.
1
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1answer
48 views

What are the ways to secure bitcoin daemon on linux?

I just integreated mining pool on my server. which means miners connect to my pool and get paid. before they get paid, it goes to my address and that address is located in bitcoin daemon. What are the ...
0
votes
0answers
56 views

How does Bitcoin 0.16 affect mining pool development, especially the introduction of BIP173 (Bech32)

I am developing a Bitcoin mining pool . I am using getBlockTemple to get from Bitcoin node, the template including the transactions and default witness commitment. I am using the following options ...
0
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0answers
44 views

Can anyone help me broadcast my IP ln the lightning explorer testnet

I have my lightning node set up but I my IP isn't broadcasting
0
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0answers
179 views

Get value from leveldb bitcoin using node.js?

I request information about the block 100001 using leveldb and node js. Below is my code example. var level = require('level'); var db = level('E:/download/blockchain/block'); var str = '...
1
vote
1answer
287 views

Bitcoind estimatesmartfee

I am trying to get transaction fee for sending all btc to another account. I use estimatesmartfee to get tx fee, I have total btc amount of 0.0195btc, so I pass 0.0195, but I get JSON integer out of ...
0
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3answers
263 views

bitcoind sync time incredibly slow

I am currently running bitcoind v0.16.0.0 on my macbook (osx 10.12.6) and the initial sync time is really slow. I'm syncing at roughly 88 blocks per hour which would mean it would take another 2 ...
2
votes
1answer
96 views

Does running a full node make rpc calls faster?

Hello I am running a pruning node on my VPS, and some of the RPC calls such as get balance take minutes to load. I need to check the balance every time the users access the website. I was wondering if ...
0
votes
1answer
197 views

python bitcoin public key to address code error

import hashlib b58chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz' def hex_open_key_to_hex_hesh160(hex_open_key): h160 = hashlib.new('ripemd160') h160.update(hashlib.sha256(('04'+...
2
votes
1answer
155 views

20% difference between settxfee and actual transaction

I set transaction fee with : $ bitcoin-cli settxfee 0.00003000 Here is what i observe from block explorer for my transaction : https://testnet.blockexplorer.com/tx/...
6
votes
5answers
208 views

What is the transaction rate bottle neck?

I recently read (Scalability link) that bitcoin can do 3.3 to 7 transactions per second... I am curious, what is the bottle neck for the transaction rate? Is it verifying the signatures? or maybe it'...
1
vote
1answer
161 views

Bitcoind Cannot assign requested address

I'm trying to run a regtest bitcoind node but I'm always receiving the following error connect() to [2a05:d01c:a35:2902:6e18:7290:ff27:e9aa]:18444 failed: Cannot assign requested address (99) ...
1
vote
2answers
116 views

How to sweep a Bitcoin Core wallet?

I have created an account in a bitcoind wallet which has got some 1.055btc which has to be wiped out to 0.00BTC to another account. so the actual BTC has to be sent is 1.055 - transaction fee. Is ...
2
votes
2answers
173 views

How do the nodes divide after a hard fork? Soft Fork?

After a hard fork, what happens to the full nodes? Say 11,000 BTC full nodes existed prior to the fork. Do all 11,000 end up supporting both BCH and BTC? Or does BCH start building it's own network of ...
1
vote
1answer
113 views

getblocktemplate fails in regtest mode even when it is connected to the other node

I have created two nodes and connected the 1st node with the 2nd node in regtest mode . Now when I make the getblocktemplate command using bitcoin-cli . It fails with bitcoin is downloading the block. ...
1
vote
1answer
413 views

How to check ownership of wallet with segwit address

So .. this seems like a simple question. If i have a wallet and someone wants to send me BTC. I want to make sure they own the wallet they claim to be sending funds from. Usually people do something ...
1
vote
2answers
334 views

How to store data on blockchain?

I want to store the data on blockchain so that people can see and verify the data. The data format will be a simple JSON like the user details. {'user_id': userid, 'amount': amount, 'product_id': ...
1
vote
1answer
77 views

how to create web wallet for bitcoin

I want to create a web wallet for bitcoin in which anyone can create their account and do the transactions but my node allow me to create one desktop wallet only. so i am not getting how this ...
0
votes
2answers
411 views

Bitcoin Solo Mining with bfgminer

I am trying to do solo mining with bfgminer but it does not seems to be working ./bfgminer --url 127.0.0.1:18443 --user test --pass test On bitcoind logs I can see the request logs 2018-05-14T10:...
1
vote
2answers
135 views

Is there a way to disable a blockchain validation?

I installed Bitcoin Full Node on Raspberry pi 3b+. Blockchain sync is dead slow because of less CPU. I Guess blockchain validation is time/CPU consuming thing. Is there a way to disable the validation ...
1
vote
1answer
138 views

Check number of active peers a node has

I saw here that you can run bitcoin-cli getinfo to see the total number of connections that a node you're running is connected to. Is there a way to get this information remotely? For example, say I ...
0
votes
1answer
118 views

When ipv6 is enabled my ipv4 address does not appear in getnetworkinfo localaddresses

After enabling ipv6 (Google WiFi/Ubuntu 16.04) I noticed that my node's upload bandwidth dropped a lot. Investigating showed: ifconfig lists one ipv4 address and three ipv6 addresses. bitcoin-cli ...
1
vote
1answer
238 views

List imported watch-only adresses

I can import addresses without private key just to track incoming transactions as it is provided in RPC calls : https://bitcoin.org/en/release/v0.10.0#watch-only-wallet-support But how can i see my ...