Smart Contract Security Tools: A Comprehensive Review

Introduction At Kleros, security is paramount. As we build decentralized dispute resolution systems that handle significant value, we need to ensure our smart contracts are resistant to attacks and vulnerabilities. While human review remains essential, automated tools can help identify issues early in the development process and provide an additional

Kleros Scout Incentive Program for April 2025: Solana Compatibility & Reward Changes

Big news! Starting April 1st, 2025, the Kleros Scout Incentive Program is adding Solana as a chain you can earn rewards from. This incentive program is valid till April 30th 2025! Plus, we’re making some changes on how rewards work. This article explains everything clearly: what’s new, how

From Idea to Impact: A Hands-On Workshop for LegalTech Founders

Gain hands-on experience in building a legaltech venture using blockchain, AI, and decentralized justice... We’re happy to announce "From Idea to Impact: A Hands-On Workshop for LegalTech Founders", a workshop hosted by Kleros, the King’s Institute for Artificial Intelligence, and ArbTech, taking place on April 23,

Mechanism Design for Decentralised Justice: Law in the Age of Crowds and Code

Join us at King’s College London on April 24, 2025, for a conference that will do a deep dive into the future of decentralised dispute resolution, AI, and blockchain governance. "Mechanism Design for Decentralised Justice: Law in the Age of Crowds and Code", co-hosted by the King’

Research Topics in Kleros Juror Selection Part 2 : Spectral Clustering using Soulbound Tokens

Soulbound Tokens are an idea introduced by Ohlhaver, Weyl, and Buterin to enable a social, non-financial layer in blockchains. Individuals are awarded non-transferable Soulbound Tokens (SBTs) that attest to their on-chain experiences and perhaps aspects of their off-chain identity over time. We discussed some ideas about how Soulbound Tokens could

Q1 2025 update to the Combined Kleros Scout Incentive Program

We're making a periodic update to the Kleros Scout Incentive Program. Starting from 1st January till 31 March 2025, we'll concentrate our rewards for submissions to Kleros Scout on untagged contract addresses across seven selected chains. Updated eligibility Criteria: Submitted contract address that can qualify for

Kleros 2.0 Beta is Here: Get Started

After years of research, development, and collaboration, we’re thrilled to announce Kleros 2.0 Beta —the first beta deployment of Kleros 2.0 on Arbitrum One. This is a pivotal moment for decentralized justice, and we invite our community to participate in refining and perfecting the next generation of

Seer: Airdrop to Kleros Jurors and Proof of Humanity Users

We’re excited to announce a special U.S. Election Airdrop for our community of Kleros jurors and Proof of Humanity (PoH) users, courtesy of Seer! 🎉 If you're registered on Proof of Humanity (even if your registration isn’t currently valid) or if you've served as

Kleros ATQ Registry Incentive Program: Renewed!

After a successful trial incentive program, we are excited to announce the extension of the Kleros Address Tag Query Registry Incentive Program from November 2024 onwards! 🚀 Thanks to the incredible contributions from the Kleros community, we’ve added hundreds of thousands of new entries to our curated lists, making them

Seer: Crafting Smarter Prediction Markets for a Complex World

Prediction markets are making waves far beyond the crypto sphere. They're grabbing headlines, catching the attention of everyone from former President Trump to Bloomberg, and even making their way into mainstream news broadcasts. As trust in traditional information sources wavers, more people are turning to these markets as

Kleros y el Poder Judicial de Mendoza: Pioneros en Justicia Descentralizada

En un mundo cada vez más digitalizado, los sistemas judiciales tradicionales enfrentan desafíos sin precedentes. La complejidad creciente de las disputas, los altos costos procesales y la sobrecarga de casos han impulsado la búsqueda de alternativas innovadoras. En este contexto, Kleros Cooperative y el Poder Judicial de Mendoza (Argentina) han

Decentralized Justice: Fighting Cheating in Gaming and Esports

How platforms such as Kleros can bring transparency, speed and fairness to competitive play... Loading the Elevenlabs Text to Speech AudioNative Player... As online gaming and esports continue to grow, so do the number of disputes arising from competitive play, cheating, and contractual issues. Traditional methods of resolving these conflicts—

prediction markets

Social Prediction Markets: Political Forecasting Beyond the Polls

Loading the Elevenlabs Text to Speech AudioNative Player... "Is Biden fit for office? Was the Trump assassination attempt staged?". As these sensational headlines flood social media feeds, millions of Americans struggle to separate fact from fiction. In an age where algorithms amplify the most engaging—often the most

The Kleros Fellowship of Justice, 8th Generation: Applications Open!

In August of 2018, we launched the Kleros Fellowship of Justice with the goal of creating a community of experts in the emerging field of decentralized justice. In this six month-long program, participants from the fields of computer science, cryptoeconomics, law and business collaborate with core members of the Kleros

Q4 2024 update to the Combined Kleros Scout Incentive Program

We're refining our monthly incentive rewards program to spotlight certain blockchain networks that have received less attention thus far. Starting from 1st September till 31 December 2024, we'll concentrate our rewards for submissions to Kleros Scout on untagged contract addresses across five selected chains. Updated eligibility

Featured

Kleros Project Update 2024

A look at the past year, giving you a full insight into what's been happening in the Kleros Republic... Coopérative Kleros, the main entity currently developing the Kleros protocol, is a mission-driven company with a focus on positive social impact with four key drivers behind it: * Justice Inclusion.

Introducing the Kleros Address Tag Query Registry

The Kleros Securities Registries (which are now part of Kleros Scout) has been a mainstay of Kleros’s products in the past years. Powered by the fully decentralized, permissionless and trustless technology of Kleros Curate, it is now a source of contract metadata to key industry infrastructure such as Etherscan,

The Kleros Doctoral Research Support Grant: Research Decentralized Justice at the University of Oxford!

The Kleros Doctoral Research Support Grant, a fully-funded doctorate in computer science at the University of Oxford… We are happy to announce the launch of the Kleros Doctoral Research Support Grant, which will provide support to a PhD student researching decentralized justice at the Department of Computer Science at the

Superando la Algocracia: Inteligencia Artificial, Blockchain y Crowdsourcing para Diseñar Mejores Sistemas de Resolución de Disputas

Federico Ast explora el potencial y los riesgos de la algocracia, así como el papel del crowdsourcing en el diseño de mejores sistemas de resolución de disputas. Publicado anteriormente en el newsletter Just Resolutions del área de resolución de disputas de la American Bar Association en noviembre de 2023. En

Announcements

Kleros Enterprise: Dispute Resolution for Companies and Governments

Implement Kleros’ “justice as a service” in your institution easily, without the complexities of dealing directly with cryptocurrency. In recent years, there has been significant growth in digital companies across finance, e-commerce, insurance, travel, and more. Since the pandemic began, there's been a 54% increase in adults shopping

Uncommon answers: deposit sizes, lazy strategies, and peer prediction

The Kleros protocol has been designed to incentivize jurors to expend time and effort to analyze subjective cases that can sometimes be complex. In particular, it is important that the protocol penalizes "lazy strategies", namely juror voting strategies where jurors do not expend an effort to properly analyze

Kleros Scout - Community Curated Security Metadata

Kleros is proud to announce the launch of Kleros Scout, the latest iteration of the Curate front end, flexing a clean UX, focus on the 3x security metadata registries and the ability to survive a nuclear assault. The current working frontend to make submissions and other workflows related to the

General

How Kleros prevented more than $100,000 from being stolen from Proof of Humanity DAO: A Detailed Analysis

Kleros recently played a pivotal role in averting a significant attack on the Proof of Humanity DAO. This is our story.

Announcements

Renewal and Key Changes in Curate’s Combined Incentive Program!

The Curate incentive program is being renewed along with some key changes led by community feedback and insights. Join up, secure the trustless backbone of the new internet and get rewarded in the process!

General

Harmony, the Kleros Mediator Bot

A pioneering AI tool designed to transform dispute resolution by harnessing the power of OpenAI's GPT-4 and the principles of the Kleros Mediation Bridge...