Questions tagged [nbitcoin]

A comprehensive Bitcoin library for the .NET framework.

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Understanding NBitcoin node creation in Bitcoin RPC docs example

I'm very new (as of today) to NBitcoin library, just trying to figure out how I might use it to develop some integration tests. Ultimately my question is: How do I use NBitcoin with existing bitcoin ...
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Buy Bitcoin with NBitcoin c# Web App

I have been using the NBitcoin lib with c# to create a Bitcoin wallet app. I have pretty much sorted out the creation of the wallet and everything that this entails. What I need some help with is on ...
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Generate BTC Private key from user string input

I am looking to generate a Bitcoin Address from an user input text (like the good old days Brainwallet). User input a "Text string" and based on this text string generate the corresponding ...
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Generate public addresses (NBitcoin)

I'm trying to generate a public address and for that, I have the code: var key = new Key(); var wif = key.GetWif(Network.Main); Console.WriteLine($"WIF: {wif}"); var secret = new ...
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How can I mine a block, in C#, on a new Testnet network where no other miners exist?

I want to demonstrate how to use NBitcoin or the most simple C# function to collect transactions for use in a block then sign that block submit it into the Bitcoin-QT network client on the RPC port? ...
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Nbitcoin's BitcoinPubKeyAddress not recognizing native segwit addresses

I'm trying to build a transaction using Nbitcoin. When I run this line there is an error parsing the address. It runs fine with segwit addresses starting with a 1, but not native segwit. Using System; ...
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NBitcoin how to send a transaction?

The verification passed. But nothing happen after that. The balance in both accounts remain the same. Anything wrong in the way that I build my transaction? var fpk = new BitcoinSecret("<my ...
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NBitcoin how can I get notify when I receive coins?

I something like onCoinReceived in bitcoinj Example with bitcoinj
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TransactionId Not working Second Time in NBitcoin and QBitNinja?

I am trying to send bitcon from my address to another address. i had 0.0024BTC in my wallet and then i performed a transfer using this article: https://programmingblockchain.gitbook.io/...
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How to Transfer Real BTC From My Wallet to another account using C#

Hi I wanted to send BTC from my wallet to another wallet through any C# Library. Currently i am using NBitcoin Library to perform this action. But, i am not able to get through it. Thanks
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Bitcoin payment gateways in c#

My question is about Bitcoin payment gateways and we can add their gateways to my site Like those sites (bitpay.com,https://gourl.io/), I want to create a bitcoin payment gateway in C# my question : ...
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NBitcoin -- How do I just check the balance of my wallet from my seed phrase?

I've looked through the docs, I've Googled, I've searched here, and it all just seems like Greek to me... I must not be using the right keywords, because I just can't figure out what I think should be ...
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In a closed, working test network, how would I generate a signed block that a Bitcoin miner would otherwise create?

I have a POC where the essential, critical, priority goal is to use C# and the .NET Core Framework (Bouncy Castle for crypto, or Microsoft primitives for BigInteger ) where I do the following Accept ...
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3 answers
898 views

Generate address of 'private key' from user input

I want to take a private key as input from the user and convert it to a wallet address using C#. I have seen this in a tutorial to generate a random key: Key privateKey = new Key(); PubKey publicKey = ...
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What is needed to generate a bech32 address?

So I wrote a vanity address generator in c# with the NBitcoin lib. When I use the private key used to generate the address and input it in Mycelium it outputs a different address. This does not occur ...
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NBitcoin Transaction sign(secret, bool) is giving error. Instead of bool it says to pass Coin Object

I am using NBitcoin (I'm new to it) to sign a transaction. Here Transaction sign(secret, bool) method is giving error. (I've searched the Internet, but got no help.) Instead of bool it says to pass ...
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How to recover bitcoin wallet from messed up seeds [duplicate]

I have a ledger nano s wallet that is broken , when i tried to recover wallet from 24 recovery word i got error that says the recovery phrase is incorrect, i think the place of some words is incorrect ...
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How can I get all transaction for a specific address using Nbitcoin?

How can I get all transactions for a specific address using Nbitcoin?
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What is the signature digest for Segwit outputs

(Assume there's no OP_CODESEPERATOR) For standard P2PKH, the signature digest is generated this way: NewTransaction settle the TxOuts well set all TxIn scripts to empty insert the Previous Locking ...
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Do transactions need to be signed

I always thought a transaction can be accepted when all its inputs are correctly provided with their unlock script (which usually contains a signature) ——yes transactions may also be rejected with ...
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Why does a same transaction signed separately have different witness values?

I signed a bitcoin testnet transaction using nbitcoin library and got an output: ...
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Blockchain Explorer for local full node

I would like to build my own blockchain explorer because I have found that using the API's of 3rd party blockchain explorers only gives me around 2 or 3 requests per second. Does an open source ...
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Send payment and message at the same time

I am using NBitcoin to write some code. I want to send some bitcoin to an address AND include a message with it. The message could say who the payment came from or why it was sent. According to the ...
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NBitcoin, how to implement wallet restoration? How does it work?

at first sorry for my ignorance, I have little experience at bitcoin programming. Im trying to implement a very simple wallet using NBitcoin library. I have done some work, but now Im stucked with ...
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Electrum's "script hash" form with NBitcoin?

I've come across how scripts are hashed in the electrum (stratum) protocol implementation by looking at the docs. I'm using NBitcoin, and I've tried to generate this hash from a segwit address, first ...
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NBitcoin get signature, use spending P2SH transaction with non-standard script

After creating a new NBitcoin transaction (with a single pay-to-script hash input and multiple outputs), is there any way to calculate the transaction signature and manually put it in the inputs[0]....
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About Nbitcoin NodeBehavior

We wrote our transaction listener and we were implement the NodeBehavior class. But when I update version of NBitcoin v3.0.0.60 to v4.1.1.46 I can't use the NodeBehavior. Because Nbitcoin cannot ...
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Nbitcoin node c#

Create a transaction to send money, then it needs to be "registered" in the system, before doing so : using (var node = Node.Connect(Network.Main, node_address))//, node_address { ...
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nbitcoin Get balance

Try to get balance : var bitcoinPrivateKey = new BitcoinSecret("xxxx"); var network = bitcoinPrivateKey.Network; var address = bitcoinPrivateKey.GetAddress(); var client = new QBitNinjaClient(...
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NBitcoin vs Bitcoin Core RPC

I initially thought NBitcoin was a wrapper for Bitcoin Core JSON RPC and that Bitcoin Core was the only way to communicate with the bitcoin network. But now that I've discovered it's not, I'm curious ...
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Understanding a Wallet Restore

This is my first post on block chain related programming so please excuse my ignorance. I find the terminology in the BIP32 and BIP39 specs hard to understand so I'm trying to confirm my understanding ...
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1 answer
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NBitCoin Analyzing Blockchain

Maybe this question is utterly stupid, but I just don't get it: I am doing some POC work to understand the BitCoin network a little better and chose C# and the NBitCoin library as my implementation ...
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2 answers
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Using NBitcoin or C# to derive Litecoin and Ethereum Addresses from Master HD Key [closed]

I am using NBitcoin, C# and the Bip44 standard to create an hdroot to derive child keys from. I then create keys that I want to use for Litecoin and Ethereum addresses by setting the proper 'coin_type'...
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NBitcoin and Mnemonic Standards

I am very new to Bitcoin development so forgive me... I'm using NBitcoin in a .Net console app to generate a master key using a mnemonic and then derive hierarchical keys. Here is the code I am using: ...
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How to sign a SegWit transaction via NBitcoin?

Most tutorials out there just show how to sign it in the legacy way. And I know that NBitcoin already supports SegWit, so is there a snippet out there on how to sign it this way?
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2 votes
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NBitcoin: signing a transaction in TestNet

I am using the NBitcoin Library to program a simple Bitcoin Transfer Program in C#. The Program will take the coins from a Transaction ID and then Transfer it to a Destination Wallet Address The ...
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3 answers
141 views

How can I integrate Bitcoin payments into my website created in C#?

I am new to Bitcoin. How can I integrate Bitcoin payments into my website which is designed using ASP.Net?
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3 votes
1 answer
442 views

How to determine if transaction is going to propagate?

So I am creating a transaction using TransactionBuilder like this: var builder = new TransactionBuilder(); Transaction tx = builder .AddCoins(coins) .AddKeys(privateKeys) .Send(recipientAddress,...
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How to Use TransactionBuilder in NBitcoin

I have used this code. It returns a success, but does not send bitcoin. var txRepo = new NoSqlTransactionRepository(); // Let’s me introduce you, Alice, Bob, Satoshi, and Nico with their ...
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1 answer
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How to run QBitNinja Server locally?

I have written a simple program that determines the available balance of a Bitcoin wallet, but it used the public API for QBitNinja at http://tapi.qbit.ninja, and everything is working fine, but I ...
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3 votes
3 answers
322 views

NBitcoin - how to set RBF to true in order to give higher fee for transaction

I have a few transactions staying unconfirmed - been a few days now. I suspect the minimum mining fee was upped - 15 minutes prior I was still doing hundreds of transactions a day at that fee - but ...
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2 votes
1 answer
671 views

How to confirm a payment was made?

I am planning to write a site that receive payments in Bitcoin. The client add products to the cart, then during check out I will create a Bitcoin address to let him pay for it (each cart gets a ...
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2 votes
2 answers
477 views

How to get Master Chain Code

I'm using NBitcoin and I created an ExtKey object. Now I need to get the Master Chain Code (see page 89 of Mastering Bitcoin for a good explanation) for this HD node. How do I do this? According to ...
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7 votes
2 answers
7k views

How can i send bitcoin using c# and the nbitcoin library?

I am using NBitcoin library to create my private keys and addresses, but I can't find an example of how to send Bitcoin. Does anyone have a c# example code to send Bitcoin using the NBitcoin library ?...
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3 votes
1 answer
526 views

'The node is not in a connected state' error when trying to execute OP_RETURN transaction with NBitcoin

This is my first time trying out the NBitcoin library to create a transaction. I am trying to create an OP_RETURN transaction, but every time I try to execute the Version Handshake with the node I get ...
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7 votes
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Which language has better Bitcoin API experience, C# or Node.js?

At the moment it seems to me on the .NET side NBitcoin would compete with Bitcoin.js on the other. Update: I decided on NBitcoin. It has a great book to learn from. Note I will not form opinion on my ...
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7 votes
2 answers
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C# parse bitcoin blockchain to get balance of an address

Is there a way to scan the Bitcoin blockchain in C# without using an external API? I am looking for the amount of spendable money of a Bitcoin address. I am using NBitcoin. // create new key pair ...
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Does NBitcoin use hardened private derivation?

When writing the following code: ////////////////1st offline SERVER////////////////// //Create Master Private Key with a seed ExtKey privateKey = new ExtKey("...
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6 votes
2 answers
4k views

How to use NBitcoin for BIP32 wallets

I'm using c# NBitcoin to generate master key at an offline server ExtKey privateKey = new ExtKey("[My seed]"); ExtPubKey pubKey = privateKey.Neuter(); I will need to give the online server the ...
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