ethereum

An overview of how I implemented the ERC1155 metadata extension to get subname metadata on OpenSea using the ENS Metadata Service.

LabelHash.com is a domain management and research tool for the Ethereum Name Service (ENS). LabelHash started life as a project for a single entity - they wanted a platform to help them purchase and manage their domain names. We onboarded a few more clients, and they liked it.. a

I am super intrigued by Proof of Stake and what it means for the future of Ethereum. I have missed the Genesis launch of ETH2 but I figured I'd have a play on the Goerli testnet just out of intrigue. The reason I have avoided ETH2 thus far

I was asked on Twitter for more details on my solution for verifying the authenticity of a message signed with an Ethereum private key. This was discussed in this blog post which provides an overview of what I was trying to do and how i conceptually achieved it. It is

I have been fairly vocal on my personal Twitter account about how speculation in cryptocurrency markets is getting out of hand. I wrote a post in August entitled Why/How I built EthTools.com. The short version is that in 2015 I stumbled upon Ethereum. It sounded technologically promising and

This is a blog post that wrote itself. School When I was 11 my parents sent me to boarding school. This is to this day the most contentious issue in my relationship with my parents. Well.. I lie. At this point in time I think we have agreed to disagree

One of Double Negative's products is EthTools.com, a website which provides a number of tools for interacting with the Ethereum blockchain. I have recently been playing around with D3.js a visualisation library written is Javascript. It hit me that visualising the Ethereum blockchain would be incredibly

In todays blog post I will show you how to create the input data of a complex function call. This example is based on the example contained within the Ethereum Wiki. I am simply going to explain it further to (hopefully) add more clarity. To demonstrate this in a clear

I have written a number of blog posts about Ethereum, the process of developing EthTools.com, the reasoning behind it, and the features of the product. Take a look: * Ethereum — Security and wallets * EthTools.com — Tools for Ethereum * Ethereum contract deployment and interaction * Verifying an Ethereum signature on the server

A brief look at how one builds an Ethereum block chain explorer, and why it is necessary for providing useful tooling for the ENS

Today (Monday 8th May), I am able to announce some new functionality for EthTools.com - Accounts, and Ethereum Name Service (ENS) Integration. Double Negative has always been a company created to build high utility web applications on top end domain names. Having been personally invested in the Ethereum platform