Arbitrum has recently brought up a discussion on Medium about Delay Attacks on Rollups. https://bit.ly/3jEz8bu In short, their post raises an important issue that affects all optimistic rollups that are based on interactive verifications, such as Optimism, Arbitrum, Cartesi, Truebit, etc. Although the attack does not compromise the security of the rollups chain, it allows a well-funded party to delay its finality by continuously burning collaterals for the duration of the attack. This news could have been worrisome, since it affects several different protocols. However, Delay Attacks are far from an unsurmountable problem. First of all, Arbitrum itself has announced in their article that they know a solution to the problem. They have announced a new protocol to be published soon, which is already being implemented. On another front, Cartesi’s contributors have also worked to tackle this Delay Attack and they have just published a solution to the issue in this article. https://arxiv.org/abs/2212.12439 In summary, under Cartesi’s proposal, a team of dishonest parties with x funds can be defeated in a single dispute by an honest player who is willing to deposit log(x) funds. This makes Delay Attacks impossible and sibling attacks impractical. Retweet: https://twitter.com/erickdemoura/status/1608440133816131586

We’ve been hard at work throughout 2022, working on releasing multiple DApp examples to attract and welcome new developer communities to build with Cartesi. Do you know how many examples we currently have? Drop your guess below! Find the correct answer: https://docs.cartesi.io/build-dapps/run-dapp Retweet: https://twitter.com/cartesiproject/status/1608462903069351936

We’ve been hard at work throughout 2022, working on releasing multiple #DApp examples to attract and welcome new developer communities to build with Cartesi. Do you know how many examples we currently have? Drop your guess below! Find the correct answer: https://t.co/l80OsD1jmM

RT @erickdemoura: Cartesi’s research team has published a paper proposing a solution to delay attacks on rollups. https://t.co/mVDe0Gn1OR…

RT @iotex_io: Imagine this: ➡️ Reliable data generation + immense computational power ➡️ C++, #Rust, Python ➡️ #Linux (used by 95% of devi…

We are our ecosystem and community. We're looking forward to having everybody with us for the long-term, that's why we need your help in keeping our community a safe and welcoming space for all. Swipe through to see how you can stay vigilant, keeping yourself and others safe from scams. Retweet: https://twitter.com/cartesiproject/status/1608100704933056512