A recent experiment powered by a new framework package for building real-time collaborative block editors. This piece is a repost from an old blog I no longer keep up. Last weekend, I felt like I needed a change of pace from reviewing full-site editing pull requests. Collaborative editing has been…

At Kleros, we take smart contract security very seriously. Back in the day, there weren’t many automated tools available to help you catch vulnerabilities in your smart contracts. We developed an extensive internal process, and we can proudly say Kleros contracts have never had a vulnerability in production. Recently, the…

Keeping Track of Dynamic Stakes in a Lottery Like Game Can Be Costly in Terms of Computation, If Not Done Right. Let Us Look at a Suitable Approach… — Drawing parties from a set of token holders using random numbers with a likelihood proportional to the amount of tokens they hold is very common in decentralized applications. This is very simple if you only allow adding stake. But, what if you want to make the staked amount freely editable…

This is the second in a series of posts that detail how we went about creating and deploying our Interactive Coin Offering. In the first post, we discussed the reasoning behind the smart contract architecture. In this post, we will share the lessons we learned and some useful patterns that…

By Enrique Piqueras and Clément Lesaege If you’ve been keeping up with all that’s been happening at Kleros lately, you know that we recently launched the world’s first Interactive Coin Offering. Interactive Coin Offerings (IICOs) are a new type of Initial Coin Offering (ICO), created by Vitalik Buterin (Ethereum) and Jason Teutsch (Truebit), that implement a…

- “It isn’t transparent if you don’t know where & how to look.” - “It isn’t transparent if it requires a humongous effort to find, see, and verify the data.” - “It isn’t transparent if 99% of users are deterred from wanting to look.” - “If it isn’t transparent it…

The past month has flown by. A lot of exciting things are happening at Kleros and we are busy preparing for our IICO, but we still wanted to keep you up to date on all of our developments. So here we go. New API Abstractions and Structure We have been working hard on a major…