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Bitcoin .net Library

Awesome Bitcoin | Curated List Of Awesome Lists | Project-awesome.org

Awesome Bitcoin | Curated List Of Awesome Lists | Project-awesome.org

A curated list of bitcoin services and tools for software developers BitKey Live USB for airgapped transactions and Bitcoin swiss army knife Pycoin Python-based Bitcoin and alt-coin utility library. sx sx - command line Bitcoin to empower the sysadmin txwatcher A little Python utility that lets you monitor Bitcoin addresses through Blockchain Websocket API and perform custom callbacks. hellobitcoin A collection of simple programs which can generate bitcoin wallets, create and sign transactions, and send transactions over the bitcoin network. Chainradar API Blockchain Explorer API for Chainradar bcoin Javascript bitcoin library for node.js and browsers btctxstore simple library to store/retrieve information in bitcoin transactions using OP_RETURN pybitcointools Python library for Bitcoin signatures and transactions from Vitalik Buterin. Project discontinued. pycoin Python library for Bitcoin keys, signatures, transactions. Includes full VM implementation and tools for manipulating keys (ku) and transactions (tx). bitcoin_tools Python library for building and analyzing transactions and scripts (both standard and custom). Comes along with a UTXO set analysis tool. Includes several examples and exhaustive documentation. XChange Library that provides a simple and consistent API for interacting with 50+ Bitcoin currency exchanges. NBitcoin Comprehensive Bitcoin library for the .NET framework. BitcoinLib The most complete, up-to-date, battle-tested .net Library and RPC Wrapper for Bitcoin and Altcoins in C#. QBitNinja An Open Source and powerful blockchain API blockchain-demo A web-based demonstration of blockchain concepts WebBTC These are postgres database dumps of the bitcoin-ruby-blockchain database generated by webbtc.com. BitcoinDatabaseGenerator A high performance data Continue reading >>

Bitcoin - Open Source P2p Money

Bitcoin - Open Source P2p Money

Bitcoin uses peer-to-peer technology to operate with no central authority or banks; managing transactions and the issuing of bitcoins is carried out collectively by the network. Bitcoin is open-source; its design is public, nobody owns or controls Bitcoin and everyone can take part . Through many of its unique properties, Bitcoin allows exciting uses that could not be covered by any previous payment system. Continue reading >>

Bitcoin Api Port For .net Core

Bitcoin Api Port For .net Core

So before I begin, Im not really sure if this is an appropriate post, but I hope others will find this interesting. Im currently working on a port of the NBitcoin project so developers will be able to use this C# API for Bitcoin using .NET Core. Since Im relatively new to C# (Im more experienced with VB.NET ), I was hoping that some other would find this project of some level of interest so it can eventually become complete and stable. A little about the original NBitcoin project (as quoted from the repos README file NBitcoin is the most complete Bitcoin library for the .NET platform. It is compatible with Open Assets and implements most relevant Bitcoin Improvement Proposals (BIPs). It provides also low level access to Bitcoin primitives so you can easily create your own smart contracts. I am hoping to bring this API to .NET Core for cross-platform usage and make it possible for the wide-spread community of C# developers to use the Bitcoin API without the chains of a Linux machine and C++, or the full .NET Framework on a Windows machine. Again, Im sorry if this type of post isnt allowed, as Im trying not to spam, but provide other developers another useful library for their endeavours. EDIT: I completely forgot to put a link to the project (whoops) So here it is: Continue reading >>

Nbitcoin : The Most Complete Bitcoin Port (part 1 : Crypto)

Nbitcoin : The Most Complete Bitcoin Port (part 1 : Crypto)

NBitcoin : The most complete Bitcoin port (Part 1 : Crypto) Codeproject fellows, I am glad to release the first article of a serie. [NEW : Part 2 Here ] I recently ported a good part of bitcoin source code from C++ to C#. I imported almost all unit tests. NBitcoin have approximately 70 tests you can use to play and discover. This is a great learning experience that I will share with you. But Bitcoin all the technical aspects of bitcoin are too long to explain in only one article. I will start this intro by looking Bitcoin from different perspectives, talking what led to its birth, and then showing you the code. For the first part I will cover only the offline aspect of bitcoin. In other words, I will omit all protocol details, and talk about the high level cryptographic part. Bitcoin grabbed my attention when I got fed up with Paypal happily blocking my fund as they pleased, along with the bureaucratic burden, fees, lack of transparence, and lack of privacy of our banking system to make any monetary transfer. As a startup , integrating a payment provider to the website was a huge burden and cost center. I tried a lot, before using paypal that is now happily taking 5% on each transaction, and reserve the right to block my money when it pleases them. They have lawyers, so they are always right. Why is it so painful ? Why cant I transfer my money easily without any intermediary ? Just me and the customer without the middle man. Bitcoin makes it possible. For the Keynes economist, Bitcoin is a money whose central banking (FED or European central bank) cant control the supply, their poor lizard brains activate and remind them the scares of the Great Depression. By then, transforming dollar into a fiat currency (not backed by gold, but controlled by central banking) was seen Continue reading >>

This Bitcoin Developer Is Working Hard To Prepare Projects For Segregated Witness

This Bitcoin Developer Is Working Hard To Prepare Projects For Segregated Witness

Nicolas Dorier is the main developer behind NBitcoin , which is a comprehensive Bitcoin library for the .NET framework. NBitcoin is used in the backend of multiple Bitcoin services such as Lykke , BitKong , Teambrella and BTCTrader . Recently, Dorier has been working on various projects intended to assist developers who wish to implement the upcoming Segregated Witness (SegWit) improvement in their own wallets, exchanges and other Bitcoin-related services. Dorier, who is also a Bitcoin Core contributor, updated his book on Bitcoin programming to show people how to use SegWit in NBitcoin and also released a number of developer tools, such as checktx and checkscript , to help developers better understand how SegWit transactions work. In addition to his work on these developer resources, Dorier has (perhaps more importantly) implemented SegWit in NBitcoin and bitcoinj . In a recent interview with Bitcoin Magazine, Dorier shared his thoughts on Segregated Witness and how it will affect the Bitcoin ecosystem. Thoughts on the Adoption of SegWit by Bitcoin Services Many have said Segregated Witness is a set of complex code that will be difficult for wallets and other Bitcoin services to implement, but Dorier does not see things that way. The NBitcoin developer agrees with Bitcoin Core contributor Eric Lombrozo that it should take less than a week to implement this Bitcoin improvement. Dorier explained: Most of the users use abstractions above raw Bitcoin transaction programming with the classes Coin, ScripCoin and TransactionBuilder. Programmers using that don't really have to know how SegWit works, as it is similar to normal P2PKH or P2SH payments. To illustrate his point, Dorier noted that Smartbit , an Australian Bitcoin exchange, was able to add support for SegNet (the Se Continue reading >>

Bitcoin Payment Gateway Api

Bitcoin Payment Gateway Api

The BitPay bitcoin payment gateway is the most versatile, easy-to-use bitcoin API available. The API is based on JSON and includes command line utilities that provide an easy-to-use client interface. Submit a payment request in 150+ currencies Display payment instructions on your website Receive push notifications with status updates Receive next-day settlement to bank accounts in 32 countries BitPay allows you to embed the invoice on your website, so the shopper never has to leave your site during the checkout process. When you create an invoice with a POST request to BitPay, BitPay returns the "url" field, which is the URL at which this invoice can be viewed. To display the embedded invoice on your page, append the code &view=iframe to the invoice URL and display this URL as the source in an iframe. The embedded invoice will automatically update when payments have been received. In addition to the server IPN sent to your notificationURL, the iframe will send a POST message to the parent window that the status has changed. If your website has a dark background theme, append the code &theme=dark to the invoice URL. Note that the iframe background color is transparent. Continue reading >>

Bitcoin Address Programming The Blockchain In C#

Bitcoin Address Programming The Blockchain In C#

You know that your Bitcoin Address is what you share to the world to get paid. You probably know that your wallet software uses a private key to spend the money you received on this address. The keys are not stored on the network and they can be generated without access to the Internet. This is how you generate a private key with NBitcoin: Key privateKey = new Key(); // generate a random private key From the private key, we use a one-way cryptographic function, to generate a public key. PubKey publicKey = privateKey.PubKey;Console.WriteLine(publicKey); // 0251036303164f6c458e9f7abecb4e55e5ce9ec2b2f1d06d633c9653a07976560c TestNet is a Bitcoin network for development purposes. Bitcoins on this network worth nothing. MainNet is the Bitcoin network everybody uses. Note: You can acquire testnet coins quickly by using faucets, just google "get testnet bitcoins". You can easily get your bitcoin address from your public key and the network on which this address should be used. Console.WriteLine(publicKey.GetAddress(Network.Main)); // 1PUYsjwfNmX64wS368ZR5FMouTtUmvtmTYConsole.WriteLine(publicKey.GetAddress(Network.TestNet)); // n3zWAo2eBnxLr3ueohXnuAa8mTVBhxmPhq To be precise, a bitcoin address is made up of a version byte (which is different on both networks) and your public keys hash bytes. Both of these bytes are concatenated and then encoded into a Base58Check: var publicKeyHash = publicKey.Hash;Console.WriteLine(publicKeyHash); // f6889b21b5540353a29ed18c45ea0031280c42cfvar mainNetAddress = publicKeyHash.GetAddress(Network.Main);var testNetAddress = publicKeyHash.GetAddress(Network.TestNet); Fact: A public key hash is generated by using a SHA256 hash on the public key, then a RIPEMD160 hash on the result, using Big Endian notation. The function could look like this: RIPEMD Continue reading >>

Lib4dev

Lib4dev

btctxstore simple library to store/retrieve information in bitcoin transactions using OP_RETURN pybitcointools Python library for Bitcoin signatures and transactions from Vitalik Buterin. Project discontinued. pycoin Python library for Bitcoin keys, signatures, transactions. Includes full VM implementation and tools for manipulating keys (ku) and transactions (tx). bitcoin_tools Python library for building and analyzing transactions and scripts (both standard and custom). Comes along with a UTXO set analysis tool. Includes several examples and exhaustive documentation. XChange Library that provides a simple and consistent API for interacting with 50+ Bitcoin currency exchanges. NBitcoin Comprehensive Bitcoin library for the .NET framework. BitcoinLib The most complete, up-to-date, battle-tested .net Library and RPC Wrapper for Bitcoin and Altcoins in C#. QBitNinja An Open Source and powerful blockchain API blockchain-demo A web-based demonstration of blockchain concepts WebBTC These are postgres database dumps of the bitcoin-ruby-blockchain database generated by webbtc.com. BitcoinDatabaseGenerator A high performance data transfer tool that can be used to copy data from Bitcoin Core blockchain files to a SQL Server database Blockparser+SQL Fast, quick and dirty bitcoin blockchain parser BitcoinABE Abe: block browser for Bitcoin and similar currencies NBitcoin.Indexer Scalable and fault-tolerant block chain indexer for Azure cloud platform. Bitcoinjs-server Bitcoin network node in JavaScript using Node.js / LevelDB Bitcoin-ruby-node bitcoin node based on bitcoin-ruby-blockchain Toshi by Coinbase An open source Bitcoin node built to power large scale web applications Fullnode Javascript implementation of bitcoin Insight API A bitcoin blockchain API for web wallets Bitcoi Continue reading >>

Github - Georgekimionis/bitcoinlib: The Most Complete, Up-to-date, Battle-tested .net Library And Rpc Wrapper For Bitcoin And Altcoins In C#.

Github - Georgekimionis/bitcoinlib: The Most Complete, Up-to-date, Battle-tested .net Library And Rpc Wrapper For Bitcoin And Altcoins In C#.

The most complete, up-to-date, battle-tested .net Library and RPC Wrapper for Bitcoin and Altcoins in C#. If nothing happens, download GitHub Desktop and try again. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Fully compatible and up-to-date with Bitcoin Core 0.11.2 RPC API. Strongly-typed structures for complex RPC requests and responses. Implicit JSON casting for all RPC messages. Extended methods for every-day scenarios where the built-in methods fall short. Exposure of all RPC API's functionality as well as the extended methods through a single interface. Bitcoin , Litecoin , Dogecoin , SmartCash and Dash integrations included. Each coin instance can be fully parametrized at run-time and implement its own constants. Disconnected raw RPC connector included for quick'n'dirty debugging. Handles and relays RPC internal server errors along with their error code. This library took a significant amount of time and effort to build and requires continuous maintenance in order to keep up with changes introduced with every new Bitcoin-Core release. Keep it up by donating at: 15Nb3RhMd13zp5Pc7yngUon83nFtEZUyBA Premium Support is available by our team of experts for $350/h (min 1 hour) at: [email protected] . From version 1.4.0, BitcoinLib follows Semantic Versioning 2.0.0 . Locate your bitcoin.conf file (in Windows it's under: %AppData%\Roaming\Bitcoin, if it's not there just go ahead and create it) and add these lines: Edit the app.config file in the Console test client to best fit your needs. Make sure you also update the bitcoin.conf file when you alter the Bitcoin_RpcUsername and Bitcoin_RpcPassword parameters. Instructions for Continue reading >>

Software - Bitcoin Wiki

Software - Bitcoin Wiki

List of Bitcoin-related software. See also Category:Software . Be sure to keep on top of the latest security vulnerabilities ! Main article and feature comparison: Clients Bitcoin Core - C++/Qt based tabbed UI. Linux/MacOSX/Windows. Full-featured thick client that downloads the entire block chain , using code from the original Bitcoin client. bitcoind - GUI-less version of the original Bitcoin client, providing a JSON-RPC interface MultiBit - lightweight thin client for Windows, MacOS and Linux with support for opening multiple wallets simultaneously Electrum - a "blazing fast, open-source, multi-OS Bitcoin client/wallet with a very active community" - also a thin client . Bither - open source wallet for Android, iPhone and Desktop with cold storage support. Bitcoin-js-remote - JavaScript RPC client, support for QR codes Bitcoin Webskin - PHP web interface to bitcoind Bitcoin Explorer - Bitcoin command line tools for Linux, OSX and Windows, part of Libbitcoin SDK. Armory - Enterprise grade Python-based client Spesmilo - Python/PySide RPC client (abandoned) Gocoin - WebUI client written in Go language, with a cold deterministic brain-wallet. btcd An alternative full node bitcoin implementation written in Go (golang). BlockCypher Full node bitcoin client built for scale and data centers, exposed through web APIs. Mycelium Awarded the prestigious "Best Mobile App" award by Blockchain.info in 2014, the Mycelium wallet for Android provides several security features. Blockchain - Javascript bitcoin client with client side encryption. xCoinMoney Advanced API to create invoices for subscription. Cancoin - HSM multi-sig wallet using libbitcoin. Client side encryption. Bitdollar - C++/Qt client, unstable beta version A live operating system can start on almost any computer from Continue reading >>

What Is Bitcoin Cash

What Is Bitcoin Cash

Yesterday, Crypto currency industry got a surprise when some of the Bitcoin industry leaders announced a new crypto currency forked off original Bitcoin, called Bitcoin Cash. Bitcoin Cash is exactly like Bitcoin with block size limit increase. Similar to Bitcoin, it is peer-to-peer electronic cash for the Internet. It is fully decentralized, with no central bank and requires no trusted third parties to operate. We are pleased to announce that on August 1st 2017, Bitcoin Cash (BCC) successfully launched. Here are some FAQ on Bitcoin Cash published on the bitcoincash.org website. Is Bitcoin Cash different from 'Bitcoin'? Yes. Bitcoin Cash is the continuation of the Bitcoin project as peer-to-peer digital cash. It is a fork of the Bitcoin blockchain ledger, with upgraded consensus rules that allow it to grow and scale. If I own Bitcoin, do I automatically own Bitcoin Cash too? Yes. Because Bitcoin Cash is a fork of the ledger, that means you own the same amount of Bitcoin Cash as you did Bitcoin at the time of the forking block. However, if your Bitcoins are stored by a third party such as an exchange, then you must inquire with them about your cash. Why was a fork necessary to create Bitcoin Cash? The legacy Bitcoin code had a maximum limit of 1MB of data per block, or about 3 transactions per second. Although technically simple to raise this limit, the community could not reach a consensus, even after years of debate. Which Development Team is In Charge of Bitcoin Cash? Unlike the previous situation in Bitcoin, there is no one single development team for Bitcoin Cash. There are now multiple independent teams of developers. Continue reading >>

Stripe

Stripe

New Build beautiful, smart checkout flows with Stripe Elements Stripe is the best software platform for running an internet business. We handle billions of dollars every year for forward-thinking businesses around the world. The complete toolkit for internet business Stripe builds the most powerful and flexible tools for internet commerce. Whether youre creating a subscription service, an on-demand marketplace, an e-commerce store, or a crowdfunding platform, Stripes meticulously-designed APIs and unmatched functionality help you create the best possible product for your users. Hundreds of thousands of the worlds most innovative technology companies are scaling faster and more efficiently by building their businesses on Stripe. We believe that payments is a problem rooted in code, not finance. We obsessively seek out elegant, composable abstractions that enable robust, scalable, flexible integrations. Because we eliminate needless complexity and extraneous details, you can get up and running with Stripe in just a couple of minutes. Continue reading >>

Github - Metacosa/nbitcoin: Comprehensive Bitcoin Library For The .net Framework.

Github - Metacosa/nbitcoin: Comprehensive Bitcoin Library For The .net Framework.

Comprehensive Bitcoin library for the .NET framework. If nothing happens, download GitHub Desktop and try again. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. NBitcoin is the most complete Bitcoin library for the .NET platform. It implements all most relevant Bitcoin Improvement Proposals (BIPs). It also provides low level access to Bitcoin primitives so you can easily build your application on top of it. Join us in our gitter chat room .It works on Windows, Mac and Linux with Xamarin, Unity, .NET Core or CLR. (Porting to Unity should not be that hard if you need it) The best documentation available is our eBook , and the excellent unit tests. There are also some more resources below. Go on the NuGet website for more information. With full features: Windows Desktop applications, Mono Desktop applications and platforms supported by .NET Standard 1.3 (.NET Core, Xamarin IOS, Xamarin Android, UWP and more). With limited features: Platforms supported by .NET Standard 1.1 (Windows Phone, Windows 8.0 apps). To compile it by yourself, you can git clone, open the project and hit the compile button in Visual Studio.How to get started ? Check out this article on CodeProject for some basic Bitcoin operations, or this Introduction to NBitcoin video . git clone NBitcoingit checkout unity35build-unity.bat Then put the two libraries NBitcoin.dll and System.Threading.Tasks.Net35.dll found in "NBitcoin\NBitcoin\bin\Release" into your asset folder. If you want to use .NET Core, first install .NET Core as documented here . mkdir MyProjectcd MyProjectdotnet new consoledotnet add package NBitcoindotnet restore using System;using NBitcoin;namespac Continue reading >>

Nbitcoin's Nicolas Dorier: Segregated Witness Fastest Way To Bump Block Size

Nbitcoin's Nicolas Dorier: Segregated Witness Fastest Way To Bump Block Size

The long-lasting block size dispute has catapulted into the center of attention again. One of the most talked about developments is Segregated Witness, of which a public testnet iteration SegNet was launched in January. The innovation as recently proposed by Blockstream co-founder and Bitcoin Core developer Dr. Pieter Wuille is a centerpiece of a scalability roadmap set out by Bitcoin Core. To find out where the broader development community stands on Segregated Witness, Bitcoin Magazine reached out to library and wallet developers, those who will need to do the heavy lifting in order to utilize the innovation once rolled out. In part 8 of this series: NBitcoin developer Nicolas Dorier. Nicolas Dorier is the CTO of Metaco , an open asset (colored coin) company that helps financial institutions emit fiat currency on the blockchain. Dorier is also lead developer of NBitcoin, the main .NET library for Bitcoin development, and he wrote a free ebook on Blockchain Programming: Blockchain Programming in C# . Dorier already implemented full Segregated Witness support into NBitcoin, and launched a basic block explorer and transaction parser and checker on Segnet. He also briefly contributed to Segregated Witness development itself. Segregated Witness is a net win, there is not any downside to adopt it at all, Dorier said. It is one of the two pieces of the puzzle the other being OP_CSV to make Bitcoin scale to millions of users, by making the Lightning Network highly effective . I am also very excited by the new method to sign transactions, which now includes the value of outputs being spent. This is huge from a security perspective for webwallets and hardware wallets, as it prevents [the] user from adding too much fees by mistake. And last but not least, it increases the capac Continue reading >>

Free Charting Library With Data Api By Tradingview India

Free Charting Library With Data Api By Tradingview India

Widgets HTML5 Library Trading Terminal Brokerage Integration Publishing Tools Stock Charting Library. Our HTML5 Charts + Your Data, hosted on your servers Downloadable charting library with an open API. This is a standalone solution that you download, host on your servers, connect your own data & use in your site/app for free. Perfect for use in mobile and desktop applications, fin portals, blogs and news sites. Its optimal when you want total control over your charting and want to show data that you control. Most chart features can be customized, so you can adapt it to what you need. These two examples are the same library adapted for desktop and mobile with different views. Optimize the viewing area, or give your users maximum available tools - the choice is yours! Can I use the library for internal project? The free library is only licensed to companies or individuals for use in PUBLIC web projects or applications. The public use can be behind a firewall, for free or for money, but the key is that other people will use it. Its not for private use. You MUST list a website in the form where your project will be available to the public. Will I get the Charting Library source code? No, we do not supply source code. Charting Library source code is obfuscated and changing it is forbidden by the licensing agreement. Where can I find documentation and examples? A simple Charting Library integration example is here . The Charting Library is well documented, all docs are accessible through our GitHub wiki (you need to be an approved library user to view, otherwise youll see a 404 error). Our bugtracker on Github provides help from us and other users. You can learn about existing issues, what the next release will contain and what it will include. You need to be an approved li Continue reading >>

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