Blockchain

Intro Great weekend for great research followup. This article is about how to implement billing system different crypto currencies using Rust pogramming language. Before getting deeper into the details of implementation o would like to define what is standing under the term “billing system” for crypto currencies. Crypto Billing system is a software that us used to organize crypto payments in your organization. It is designed to create derevative addresses (one time payment addresses) and monitor incoming transactions executing business logic for your organization. Typically the scenario could be the following: ...

Intro I collected of all token related standards proposed for the Ethereum network. This list can be used as note to recap and used during architecturing of the blockchain software. This list can be used compile solutions based on standards, many of the standards proposed by Ethereum developers and community and already have been implemented in Solidity. List of Ethereum Tokens Standards ERC-20 : Standard Fungible Token (EIP-20) Standard API for fungible tokens, including transfer and balance tracking functionalities. ...

Intro I was interested on how to write Bitocoin automation and during of implementation of the project I found out that I need to write raw transactions. This looks interesting as it give an overview on bitcoin protocol internals, knowledge on how it works gives possibility to understand deeper the internals. Creating a Raw Transaction This allows you to send money but to craft the transactions as precisely as you want. This first section focuses on a simple one-input, one-output transaction. This sort of transaction isn’t actually that useful, because you’re rarely going to want to send all of your money to one person (unless you’re actually just forwarding it on, such as if you’re moving things from one wallet to another). Thus, we don’t label this section as a way to send money. It’s just a foundational stepping stone to actually sending money with a raw transaction. ...

Intro I was interested how Solana blockchain is structured. Basically how to create own ERC20 and ERC721 token analog in Solana. My findings show that Solana provides ready to use implementation for Fingible and Nonfingible tokens. Comparing to Ethereum and other blockchain platforms, Solana is more flexible and has more features. Smart Contracts are also available in Solana. I will try to cover all the features of Solana. Solana Programs Smart Contracts in Solana called as Programs. Programs are usually written on C++ or Rust prograaming languages. I will focus on Rust programming language because i want myself to dive deep into Rust language. There not much difference in terms of how Smart contracs deployed on Solana and Ethereum, you will get similair use eperience using platfom tools for deployment on both blockchain networks. However, there are some differences in how programs are written. ...

Intro Let’s take a look a specific use-case. If a user is sending bitcoin to my bitcoin address, how can I keep track the status of the transaction, for example, when the user send the coins and when the transaction gets confirmed? The solution is the system will generate a unique address for every user who is trying to send bitcoin. And the system will listen any transactions in the network, which related to this address. ...

Ethereum blockchain roulette implementation using smart contracts and Web3. Prepared for blockchain presentation. This project is a proof of concept of a game for blockchain presentation. The aim is to engage people in the blockchain community and to show how blockchain can be used in a real world application. The game is based on the roulette game. Technologies used: Solidity Ethereum blockchain JavaScript Web3 HTML/CSS To take part in game you will need metamask extension installed. To download it go to Metamask website. Please use Chrome browser. ...