Why a Freelancer’s Smart Contract? — I began my career building software for companies as a freelancer in my teens back in the late 90s. It was the best, or worst of times depending on how you see it. Apart from honing my development skills, I learned how to price my service and negotiate terms of…

Fractional NFT is a feasible technique to represent the co-ownership of properties. The second part of this series of articles describes how fractional owners are ensured of their rights to their shares of the property when the NFT is transferred to a new owner. Recap & Introduction In the first…

Fractional NFT is a feasible technique to represent the co-ownership of properties. This article demonstrates how the combined use of ERC721 and ERC20 tokens may do so. What’s a Fractional NFT? A Non-Fungible Token (NFT) is a proof of ownership. To prove that you own an ape from the Bored…

This is the 3rd and final part of the series of articles to demonstrate how Non-Fungible Tokens (NFTs) may replace paper-based Certificate of Authenticity for luxury goods such as watches. Refer to Part 1 to learn the business logic and Part 2 to walk through the DApp. The BreitLex DApp…

This is the 3rd part of a 4-part series that document my process of building a Decentralized Application (DApp) for freelancers to receive multiple partial payments for a project that he undertakes with a client. For a step-by-step guide on the business logic of this process, refer to part 1…

How do you ensure that the Non-Fungible Token (NFT) that you just bought will definitely be delivered? Let’s take this question further. Imagine that you are purchasing a used luxury watch that comes with an ERC-721 based NFT certificate (like the one that I discussed in the article NFT-based Luxury…

A Decentralized App for Minting, Viewing, and Transferring NFT-based Certificate of Authenticity for Luxury Watches — This is the 2nd part of my series of articles to demonstrate how Non-Fungible Tokens (NFTs) may replace paper-based Certificate of Authenticity for luxury goods such as watches. Refer to Part 1 to learn the business logic behind how this may work. I name my imaginary watchmaker BreitLex. In this…

Building & Deploying an Ethereum Decentralized App — Welcome back! This is the 2nd of a 2-part tutorial I will walk through my Ethereum Development toolchain using the example of building the Freelancer Decentralized Application: Writing and Testing the Solidity Smart Contract Building and Deploying the DApp The scripts and config files that I use for this tutorial…

My Ethereum Development Toolchain — Like all other software development processes, building Decentralized Applications in Ethereum comes with its suite of development tools. In fact, there are many options. In this 2-part tutorial I will walk through my Ethereum Development toolchain using the example of building the Freelancer Decentralized Application: Writing and Testing the Solidity…