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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2
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2answers
3k views

bitcoind error “mempool min fee not met” preventing me from sending btc on blockchain

When I want to send btc in block chain this message is appearing: BitcoindException(super=com.neemre.btcdcli4j.core.BitcoindException: Error #-26: 66: mempool min fee not met, code=-26). Who ...
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1answer
396 views

bitcoind starting and then quickly shutting down automatically

Lenovo E460, 8GB RAM, Fedora 26, bitcoin core command line version 0.16.0, All blocks completely downloaded on a flash drive with 256GB capacity. I rebooted my machine today without stopping the ...
2
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1answer
137 views

Wallet for btc bot

Which bitcoin wallet should I use to manipulate it programmatically? I don't want to use heavy bitcoin-core. But as I understand there are different kinds of bitcoin's thin clients: some outsource ...
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1answer
103 views

How can I pass Multiple addresses in Move command

I have to pass multiple addresses in move command but I am not able to pass as it is not accepting more than one wallet address Is there is any another way to move the balance to multiple addresses.
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1answer
318 views

Manage multiple users wallets for web wallet service

This already summaries the issue I'm currently trying to figure out to calculate the transaction fee to prevent negative balance. (testnet) I tried using createrawtransaction answered. When I tried ...
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2answers
59 views

What should I do to increase bitcoind sync speed?

My VPS has 2gb RAM and CPU core is 1 and 1 TB HDD storage. The sync speed is very slow. Currently it has about 700 MB free RAM. bitcoind is taking about 66% of the 2GB ram. Should I add 1GB more RAM ...
0
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1answer
70 views

Transaction net gain/loss

I have a TXid in my wallet that contains multiple transactions (multiple sends and receives). From what I read these are transactions the network creates facilitate splitting/combining multiple inputs/...
2
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1answer
849 views

Running Bitcoind as a service on windows 10

So I am trying to run bitcoin daemon as a service on windows 10, so I don't have to keep starting it. I have tried the following command: sc create BitcoinServer binpath= "C:\Program Files\Bitcoin\...
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1answer
480 views

Bitcoind could not locate RPC credentials but rpcuser and password are set

I installed bitoind and synced it. But when i'm trying to connect from my php website i getting: Unable to connect to http://user:password@my.bitoind.server.ip:18332/. Also when i'm trying to see ...
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1answer
570 views

Blockchain.info testnet websocket doesn't work

When I try to connect testnet websocket provided by blockchain.info api. Connection doesn't establish, when i looked into the code. It says for testnet it uses "wss://ws.testnet.blockchain.info/inv" ...
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1answer
620 views

Please help - Bitcoin Conf file in the wrong directory

I am running a full node using Bitcoin Core GUI on Windows 10. The conf file is in my bitcoin data directory, instead of being in the appdata/roaming folder. But Bitcoin-qt points to it by default and ...
0
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1answer
91 views

Keeping wallet addresses outside bitcoin core

I'm trying to build a good security for my online bitcoin based application. Is something like this possible? send_bitcoin(address) create_address() sweep_balances() + | | ...
3
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1answer
282 views

Bitcoin Core 0.13 How many addresses it can **effectively** manage?

I want to know, what's the maximum amount of addresses that Bitcoin Core 0.13 can manage? All addresses should belong to the default account. I want to use walletnotify feature How startup time ...
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2answers
19 views

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 ...
3
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1answer
129 views

How do I recover from a disk read error (fread failed)?

My full node daemon (bitcoind) crashed due to a disk read failure. The error is as follows: "Deserialize or I/O error - CAutoFile::read: fread failed" etc. How do I recover from this error? I don't ...
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2answers
1k views

Setting up the bitcoind to run at startup Ubuntu 17.04

I've created a bitcoin.service file as found here: https://github.com/bitcoin/bitcoin/blob/master/contrib/init/bitcoind.service However i've modified it as i build bitcoin-core from source to the ...
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1answer
130 views

Is it possible to handle BCH transactions on Bitcoin Core wallet? [closed]

I've installed Bitcoin Core on a server and it works well for BTC. I would like to know can I use the same server and platform to support BCH too? I know that the addresses generated in Bitcoin Core ...
1
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1answer
22 views

Using Bitcoin Client and Bitcoind for Regtest, Error regarding Fallback fees

I have been doing an assignment on Bitcoin Core 0.20. Now every time I try to do a transaction: Apples-iMac:bitcoin apple$ bitcoin-cli -regtest sendtoaddress ...
5
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2answers
365 views

Which RPC may I use to query bitcoind for raw transactions coming through?

I need to capture and store the raw transactions coming through my local full-node bitcoin instance. I read here that it is possible, but there is no mention of the particular RPC calls. I also see ...
2
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1answer
110 views

Consistenly getting Block magic mismatch error?

I have bitcoind running (0.18) in my ubuntu machine and it keeps shutting down due after getting this error: ERROR: ReadRawBlockFromDisk: Block magic mismatch for CDiskBlockPos(nFile=0, nPos=68821043)...
0
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1answer
15 views

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
82 views

Opening a wallet with bitcoind

I am running bitcoind after previously running bitcoin-qt. I made a wallet with bitcoin-qt (and encrypted it) and I would like to open it now with bitcoind. The folder that contains the wallet.dat ...
0
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1answer
1k views

Bitcoind daemon: error connecting to the server?

I am trying to create a new bitcoin address and store it in a shell variable $NEW_ADDRESS. When I run this command: $NEW_ADDRESS=$(./bitcoin-cli getnewaddress) I get the following errors: error: ...
1
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1answer
24 views

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 ...
2
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1answer
865 views

bitcoin-cli “Could not connect to the server”

Brand new Raspberry Pi mainnet node following this walkthrough: https://medium.com/@meeDamian/bitcoin-full-node-on-rbp3-revised-88bb7c8ef1d1 When I run this command: bitcoin-cli -rpcuser=username -...
9
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4answers
7k views

Possible to speed up reindex?

I just reindexed a node that was already synced (in order to enable txindex); it took around 9 hours. It's on a pretty good system: 16G RAM, i7 with 4 physical cores. Storage is a weak point, with ...
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2answers
84 views

How to re-connect to `bitcoind -printtoconsole` after socket timeout?

I started bitcoind with the option -printtoconsole to check for errors and my terminal ssh connection was timed out during the night - probably because my computer was in hibernation. I see that the ...
1
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1answer
269 views

Bitcoind doesn't start

Im trying to make Stadicus guide work for both Bitcoin Core & LND I did download the blockchain and moved to the HDD on my Rasp3 However, when starting the bitcoind service, im having this debug....
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0answers
8 views

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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1answer
106 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 ...
1
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1answer
70 views

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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0answers
12 views

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
42 views

Bitcoin Core JSONRPC only accept requests with 0.0.0.0 in configs

I've lunched a Bitcoin Core server, and trying to connect to it via JSON-RPC. This is my configuration settings: server=1 rpcuser=admin rpcpassword=password rpcport=1234 rpcallowip=94.183.32.151 ...
2
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1answer
48 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 ...
0
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2answers
498 views

Is it possible to make transaction using wallet private key

I have a private key of a bitcoin wallet . Is there is any way i can check balance and make transaction using bitcoin core without importing private key.
8
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3answers
2k views

How to get notification on bitcoin receive with bitcoin core

How can I get Bitcoin receive notifications with Bitcoin Core. I have tried the walletnotify and blocknotify options. walletnotify is fired two times when I send or receive bitcoins. And with ...
2
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0answers
25 views

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 ...
12
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3answers
17k views

All Bitcoin Public Keys with non-zero balance

I want to get a database or otherwise retrieve a set off all bitcoin public keys (not addresses) that have non zero balances. What would be the easiest way to do that? Is there an API that could do ...
1
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1answer
41 views

Recover corrupted wallet due to system crashed

My server was crashed suddenly and didn't shut down bitcoin core probably, so now my wallet was corrupted due to it didn't be released. I try to moved the corrupted wallet to a new server but it can't ...
0
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2answers
79 views

Is it possible to change private key

I would like to know if it's possible to change private key of bitcoin wallet via rpc call to bitcoind. Thank you for your answers
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1answer
45 views

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 ...
0
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1answer
49 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,...
1
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1answer
64 views

Is Bitcoin Core required for wallet projects?

My team wants to create a cryptocurrency service provider platform to Sell/Buy BTC and something else in form of web/mobile app. It's about one month that I have been studying different articles about ...
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0answers
30 views

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....
0
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1answer
32 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 ...
1
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1answer
123 views

How to get block headers from block hash using P2P API?

I have been experimenting with getheaders and one thing I can't seem to figure out is how to get a header for a specific hash, because getheaders doesn't provide this feature. According to the ...
5
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3answers
3k views

Where can i get all the commands with descriptions for Bitcoind on my linux server?

Just installed bitcoind on my server and wanted to find a cheat sheet for the bitcoind commands. Where would i find them with a description and example of what each command does?
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1answer
70 views

Error while syncing with the blockchain on my Raspberry Pi

So I already have the node set up on my raspberry pi. This night the transfer of the Blockchain from my laptop to the raspi's hard disk finished. Now I am waiting for the blocks to match the headers "...
0
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1answer
72 views

Can I send BTC from other node or wallet with my address?

I'm trying to send bitcoins from node2 with my address using private key noted that my address is created in node1.I followed this link: "https://en.bitcoin.it/wiki/How_to_import_private_keys" I dump ...
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0answers
20 views

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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