Atchai blog

How we simulated and subsequently abandoned the MythX token

Posted 31 Dec 2018 (15 minute read)

MythX (previously Mythril) recently made the decision to drop their custom token and move to a stablecoin-based subscription payment system. Bernhard already posted a good overview of the reasoning behind this decision but I’d like to add some background on how we used simulations to help us understand the dynamics of and issues with the token model. By way of disclaimer, I’m an advisor to MythX and co-creator of the Economy.os tool.

Read more

Can we save the utility token?

Posted 30 Aug 2018 (8 minute read)

Introducing a dynamic bonding curve token model Utility tokens have received a lot of bad press recently, and for good reason. Many ICOs that sold utility tokens seem to have massively over-estimated the supply of tokens required for normal usage of their networks. The price of these tokens has been supported by speculative investors who presumably didn’t give much thought to the fact that they were not designed to function as a store of value and will likely be sold in return for usage as soon as they’re purchased by legitimate users, resulting in what is now commonly referred to as the velocity problem.

Read more

Software licences as non-fungible tokens

Posted 11 Apr 2018 (6 minute read)

What if all our software licenses were compatible and we could go to a single integrated app store and sell say three days of Adobe Creative Cloud and buy two days of Microsoft Office? This flexibility would be a clear win for consumers but would surely lead to a loss of revenue for software vendors. Hmm, but what if this easy transferability of licenses also reduced piracy? In this post we present a simple proof of concept, representing software licenses as ERC721 tokens on the Ethereum blockchain, and using Metamask to passwordlessly log in to a web app by proving that you own the address that owns the tokens.

Read more

OpenSign - Decentralized Agreements on the Blockchain

Posted 15 Mar 2018 (4 minute read)

OpenSign is a free, decentralized alternative to products like DocuSign and EchoSign. It allows you to make agreements without requiring any trusted third party to keep track of your documents and signatures. td;dr The OpenSign dapp is currently an MVP, you can try it yourself now if you have some Ethereum and your browser has MetaMask installed. How does it work We’ve tried to make the process of creating multi-party agreements as simple as possible, but you will need some experience of using Ethereum and Metamask for any of this to make sense.

Read more

Eyewitness Platform sprint 2 update

Posted 17 Jan 2018 (5 minute read)

The Eyewitness platform is an open source messaging bot and management interface designed to let news organisations distribute stories and collects User Generated Content (UGC). The project is funded by Code for Africa and Bill and Melinda Gates Foundation. Feedback on our first release As detailed in the update for release 1, our first version of the Eyewitness chatbot focussed on providing a reason for people to connect with the bot.

Read more

Eyewitness Platform sprint 1 update

Posted 29 Aug 2017 (4 minute read)

The Eyewitness platform is an open source messaging bot and management interface designed to let news organisations distribute stories and collects User Generated Content (UGC). The project is funded by Code for Africa and Bill and Melinda Gates Foundation. Funding issues First off, an apology. When we pitched this project we intended to begin development sometime in spring and to have a working product out in the market by this point.

Read more

Introducing Eyewitness - the newsgathering bot platform

Posted 2 Feb 2017 (2 minute read)

UPDATE: Out of 736 applications, it was announced today that we are one of the 22 winners to receive funding from #innovateAfrica. We’re absolutely thrilled to have been chosen, and we’re really excited about the potential for Eyewitness to transform newsgathering. What is EyeWitness Bot? Eyewitness will allow media organisations to leverage their community on Facebook to gather opinions, tip-offs and quotes. We will save journalists time, enabling them to collect information quickly and on a large scale, with an innovative AI bot and data analysis platform.

Read more

LastSeen - a chatbot that knows you're safe

Posted 2 Feb 2017 (4 minute read)

LastSeen is a simple chatbot that asks the user to check-in once a day and notifies their designated contact if they don’t. The project is a collaboration with Tom Hewitson. Tom’s father passed away last year. Once the initial shock had subsided he found himself often worrying about his mum now that she was on her own. As he was calling to check in on her every day he had the idea for LastSeen.

Read more

How to run a successful chatbot development project

Posted 2 Sep 2016 (6 minute read)

In this article we’ll share a few things we’ve learned from building chatbots and conversational UI products. We’ll cover how to select the right messaging platforms, the importance of conversation design and why we’ve built our own platform for the rapid development of chatbot products. What does success look like? Before starting any project, it’s important to define goals and how you’re going to measure success. One of the unique things about chatbot products is that you can sometimes fake it til you make it.

Read more

Paging Doctor Bot

Posted 18 Aug 2016 (8 minute read)

The rise of the bots — they’re everywhere! In this article we examine the benefits of using chatbots in healthcare. Healthcare is a controversial topic. Rising costs, often attributed to factors such as increased life-expectancy and regulation, as well as a booming population add continuous pressure to reform and innovate in this space. What’s more, the quality of healthcare delivered is often questioned when compared to these rising costs. There is a rich history of medical expert systems developed to reduce the increasing healthcare costs, meet new regulatory requirements, and satisfy wider requirements to improve the quality and effectiveness of healthcare while maintaining the operational efficiency of healthcare organisations.

Read more