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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).

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0
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1answer
637 views

Bitcoin RawTransaction Json - what do all the variables mean

The below is the response we get. could someone please explain what each element is. type RawTransaction struct { Blockhash string BlockTS uint32 json:"blocktime" Confirmations int ...
0
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1answer
748 views

createrawtransaction and fundrawtransaction

I use createrawtransaction for create a rawtransaction with [] "zero inputs" and one output. I use fundrawtransaction for populate rawtrasaction with inputs. {"method":"createrawtransaction","params"...
0
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1answer
539 views

testnet3 node sync process is very slow

My config file is similar to this: testnet=1 blocksonly=1 rpcport=5000 server=1 listen=0 prune=1000 dbcache=16000 rpcallowip=0.0.0.0/0 rpcuser=someuser rpcpassword=somepass I have started the ...
9
votes
1answer
2k views

Passing a JSON argument to bitcoind in Windows command prompt

I've been trying to use sendmany on my local installation of Bitcoin-qt (version 0.7.0) from the Windows command prompt. I've seen examples but when I try them all I get is a JSON parsing error. I ...
9
votes
1answer
762 views

How is the size of a block calculated?

How is the blocksize currently calculated in Bitcoin Core? I'm specifically asking about how it's done for the purposes of enforcing the 1MB limit. If it's done by calculating the serialization length,...
6
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1answer
2k views

listsinceblock parameter: target-confirmations

listsinceblock help returns: listsinceblock ( "blockhash" target-confirmations ) Get all transactions in blocks since block [blockhash], or all transactions if omitted Arguments: 1. "blockhash" (...
6
votes
1answer
1k views

How to broadcast a transaction anonymously

Is it possible to broadcast a transaction to the network without revealing my personal IP address? My first guess is to connect bitcoind over Tor with proxy=127.0.0.1:9050. Is it the good way to do it ...
5
votes
1answer
2k views

Running full node over Tor

I am attempting to run a full bitcoin-core (v0.13.1) node over the Tor network for the first time. I have set up my /etc/tor/torrc file with the following two lines: HiddenServiceDir /var/lib/tor/...
5
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2answers
5k views

16: mandatory-script-verify-flag-failed (Non-canonical DER signature) (code -26)

I try to send transaction via sendrawtransaction in console of bitcoind. Sig is: ...
5
votes
2answers
3k views

How to get the immature balance of an account?

I have run bitcoind and have several accounts. How do I get the immature balance of one account using RPC calls (if possible) ?
5
votes
1answer
2k views

What does UpdateTip mean?

Example the debug log: 2014-06-27 12:59:10 UpdateTip: new best=00000000000000002a03b175f183c3bbc440f5c2a171e958bfd504582f711f70 height=308004 log2_work=79.405055 tx=41447698 date=2014-06-27 00:04:...
4
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2answers
569 views

Multisig doesn't work unless all keys were generated from the current wallet?

I tried to create a multisig in both the Bitcoin network and the Bitcoin testnet. It seems to work only when all public keys are from the current wallet. That means when I call listunspent after I ...
4
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3answers
456 views

Running two bitcoind instances for different nets

Is it possible to run two separate bitcoind instances on one system at the same time, one for mainnet, other for testnet?
4
votes
1answer
2k views

Blockchain over 36GB and causing disk space issues

I want to install the bitcoind daemon on a computer with relatively little free space (about 35GB available). I thought that the blockchain was some 20 GB in size and figured that would be no problem, ...
3
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3answers
1k views

Ubuntu - Show active connections?

How can I see how many active connections there are on Linux?
3
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1answer
2k views

How can I tell what input address sent me coin? [duplicate]

Rather - how does SatoshiDice do it? I know it's not proper format and people advise against it, but how is it technically possible?
3
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2answers
1k views

How to make genesis block transaction spendable?

I read this question Why can’t the genesis block coinbase be spent? . It says because of some quirk (the genesis block coinbase transaction is not added to the global transaction database) genesis ...
3
votes
1answer
237 views

What do I have to do after Segwit activates if I'm running Bitcoin Core 0.14.1?

I have my bitcoins on a Linux Server. It runs Bitcoin Core 0.14.1. What do I have to do after Segwit activates?
3
votes
1answer
32 views

What are the downsides of integrating accumulators like utreexo to bitcoind?

Inspired by the discussion in this question I wonder what would be the downsides of adding accumulators like utreexo (paper at: https://eprint.iacr.org/2019/611.pdf) to bitcoind? On the positive ...
3
votes
1answer
1k views

Thin command line-capable client for Linux

I need to set up linux server for web service that could generate bitcoin addresses and check the balance on them, etc (basically, receive payments in BTC). And I do not want to use third-party online ...
3
votes
1answer
858 views

getrawtransaction in Bitcoin-Qt (0.8.5)

I am getting an error {"code"=>-5, "message"=>"No information available about transaction"} when issuing getrawtransaction. I am aware that since bitcoind/Bitcoin-qt 0.8, no transaction index is ...
3
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2answers
525 views

How do I compile Core 0.8.6 on Ubuntu (EC2)?

I'm trying to compile v0.8.6 of the core client from source, in order to compare IDB (Initial Blockchain Download) performance between versions. I created a fresh Ubuntu Xenial 16.04 machine on ...
3
votes
2answers
345 views

Get Latest blocks with bitcoind on Ubuntu

The total blockcount on my machine is not increasing. I have tried doing a bitcoind -reindex -daemon, but it didn't ultimately increase the number of blocks. Attaching machine and bitciond ...
3
votes
1answer
1k views

Receiving `error: {“code”:-25,“message”:“”}` on sendrawtransaction with v0.9.3

I'm running a bitcoind regtest node. When trying to relay a transaction (created using bitcoin-ruby) I receive error: {"code":-25,"message":""} When I restart the node and relay the exact same ...
3
votes
1answer
218 views

Bitcoind daemon get received notifications by public address

For my project I need to check the balance of a public address using bitcoind. Can I do that without importing the private key, only by public address? Need solution no dependence, because I tried ...
3
votes
1answer
1k views

Bitcoind returning “Invalid JSON-RPC 2.0 response”?

I am starting to use a basic implementation of Bitcoin JSON RPC (dzhuvinov library), and I am getting a strange result. Here is my code: public static void main(String[] args) { URL serverURL = ...
3
votes
1answer
595 views

bitcoind not using correct directory inspite of datadir argument

I configured a non-pruned bitcoin full node on a RaspberryPi 3 using this tutorial - http://raspnode.com/diyBitcoin.html I am using a 1TB external HDD to store the blockchain. I synced the full ...
3
votes
1answer
1k views

How can I get logging information on incoming transactions with bitcoind?

Im running two Bitcoind Nodes. Is there anyway to log the incoming transactions and the output?
3
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2answers
2k views

Pool getwork “target”?

In a getwork request, bitcoind sends a target corresponding to the current block's bits value. Do the major pools send the same target as one would expect from bitcoind, difficulty of "1" target, or ...
3
votes
1answer
1k views

How do I find out what block a transaction is in?

I'm trying to do research on the age of transaction outputs at the time they are spent. I'm running bitcoind on my computer. I have transactions indexed with txindex=1. I want to take a given TXIN and ...
2
votes
1answer
188 views

Bitcoind suspend when Synchronizing blocks

My bitcoind started synchronising blocks. The bitcoind version is 0.93. When the bitcoind found an orphan blocks in the synchronising process, it seems stop and did not work. the message from the log ...
2
votes
1answer
1k views

bitcoind sendfrom with minconf=0

Is it possible using bitcoind JSON-RPC API to receive funds from someone and send it immediately to another third-party address? I do not want to wait for 1 confirmation. getbalance with minconf=0 ...
2
votes
1answer
219 views

LoadBlockIndexDB: transaction index disabled

I'm trying to run bitcoind on a Raspberry Pi 3 but I'm stuck on an error. The raspberry has a Hdd for storage with a fully indexed blockchain that was synced on my laptop and than copied to the Hdd (...
2
votes
1answer
3k views

Can't make successful call via remote JSON RPC

I can verify that my node is up and that the port is up via the above method, however no amount of effort has allowed me to successfully make a remote RPC call. I am booting my node via $ bitcoind -...
2
votes
1answer
1k views

JSON-RPC Connection Problem!

I use bitcoind. And I have simple bitcoin wallet with simple login-register system. Error Code; Fatal error: Uncaught exception 'Exception' with message 'Incorrect response id (request id: 1, ...
2
votes
0answers
201 views

Is there a robust way to test for a corrupted blockchain?

While running bitcoind I once had the blockchain get corrupted and it manifested as a non-obvious error message which unfortunately I can't remember. I would like to know if there is a robust way to ...
2
votes
2answers
891 views

How do I run a headless testnet on OS X?

I'm trying to develop some applications and need bitcoind, but can't seem to find a recent version. Posts seem to indicate that it's incorporated into Bitcoin-Qt, but I don't want to run a GUI just ...
2
votes
1answer
415 views

How to connect bitcoind mainnet node on AWS EC2 by using rpcjson?

I'd like to access bitocind mainnet node on AWS EC2 from ruby. I've written as follows using rpcjson, however it cannot connect, then returned the error client = RPC::JSON::Client.new 'http://...
2
votes
1answer
436 views

Bitcoin Cash sendrawtransaction error?

I am trying to send a raw transaction from my Bitcoin ABC node. It is not fully synced, but I have at least passed the point where I can see some of my transactions. In trying to send a tx after ...
2
votes
0answers
2k views

Why isn't bitcoind listening on its rpc port?

I run sudo netstat --ip -lpa | grep bitcoin After starting the bitcoin daemon and all I get is the 8333 port and the connections with other peers. But when I do the same but with | grep namecoin, I ...
2
votes
1answer
405 views

How to set up a node on Testnet of Lightning network on the world map

I am currently having problems posting my node on the "World Map." I can see my node on the "Force Map" on this site. Can anyone tell me how to enter the public IP so that it can be seen on the "World ...
2
votes
1answer
5k views

Where is the configuration file?

This is strange! The documentation on running the Bitcoin daemon on a Ubuntu machine is clear. The configuration file is supposed to be at $HOME/.bitcoin/ location. And yet, I cannot locate it! I ...
2
votes
1answer
727 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\...
2
votes
1answer
1k views

Windows 7 : Unable to start bitcoin server using daemon in regtest : bitcoind -regtest -daemon

I am trying to start bitcoin server in regtest mode using bitcoind -regtest -daemon command on my windows 7 operating system. Error I am getting is daemon is not supported on this operating system. ...
2
votes
1answer
1k views

Bitcoin Core txindex vs default mode vs pruned mode in depth

You can run bitcoin in: txindex mode: Which allows you to query any transaction on the blockchain with getrawtransactions (any other benefits?). This takes up the most space default mode: this allows ...
2
votes
1answer
2k views

paytxfee vs maxtxfee which one overrides the other

In wallet options section it shows these two settings -paytxfee=<amt> Fee (in BTC/kB) to add to transactions you send (default: 0.00) -maxtxfee=<amt> Maximum total fees to use in a ...
2
votes
1answer
72 views

While using Open Transaction as a Decentralized Exchange, how can one guarantee sanctity of the trade carried out by the parties?

Lets assume Alice holds 100 shares of Twitter and wants to sell those shares on Open Transactions. Bob decides to purchase those shares. They decide the terms of the transaction, price etc and sign a ...
2
votes
1answer
56 views

Bitcoin Core What default values should I pass for some positional RPC params in sendtoaddress

I am trying to use the sendtoaddress rpc method of bitcoin core. From the documentation I read that I can pass "estimate_mode" parameter to estimate a fee. However as I believe json rpc follows ...
1
vote
2answers
1k views

Why could UpdateTip be taking so long?

It has been 10 days since I ran bitcoind. When I opened it yesterday, I waited for about 40 minutes during which I could do not much except for waiting because my computer became so slow (high CPU ...
1
vote
0answers
346 views

Running multiple Bitcoin nodes on same network

I want to run a bitcoin node on two separate devices (computer + dedicated hardware device) on the same network (and would like them to be externally accessible). Specifically, I have a Casa Node ...