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CARTESI X RISC-V Working Together

Latest news on the Cartesi funding program, stay tuned!

World Tycoon is a fully on-chain city-building game that has just completed its second milestone and submitted for review.
This milestone includes LAO integration, alpha testing and bug fixing, community feedback-based beta testing, and final preparations before launch.

→ https://t.co/r62Tdz3qJF

The Cartesi-Chainlink library has been officially accepted by Wave 2, and they are racing against time.
The team has thoroughly researched these two ecosystems and always keeps one goal in mind: to design the simplest and most powerful way to connect Cartesi dApps with Chainlink automation.

→ https://t.co/seEtfl0oXi

The ThinkandDev board game framework has completed its 3rd and 4th milestones!
They have integrated Cartesi's DRAND for randomness, improved the lobby system to manage multiple game sessions on the CVM backend, and added XMTP for seamless communication between players.

→

May great fortune, happy holidays, Cartesian

Cartesi has been built for future compatibility from day one.

The Linux-driven RISC-V environment is already running on Ethereum and, being an application-specific rollup, can be deployed on any chain.
Now explore the possibilities of building with Cartesi:

https://mp.weixin.qq.com/s/E2R5rtxqJd22uV2CXy7w4Q

Cartesi has been built for future compatibility from day one.

The Linux-driven RISC-V environment has been running on Ethereum, and because it is an application-specific rollup, it can be deployed on any chain.
Now explore the possibilities built with Cartesi:

https://docs.cartesi.io/cartesi-rollups/1.5/core-concepts/architecture/

Let's read V's new work together

"The expansion of the execution layer 'no stability without breaking', the EVM must be iterated in the future"

https://www.odaily.news/post/5203142

Every Friday is Cartesi Weekly Report 🐧, some extra updates to keep you in the loop:

We have implemented the EigenLayer @eigenlayer operator set, which is crucial for enabling operator slashing functionality in the Cartesi co-processor. Soon, we will launch a new Holesky deployment that also supports retrieving error code results from computations.

Congratulations to the EigenLayer team on the mainnet release of slashing functionality!

There’s also good news, it’s time to bring your ideas to life! Drawing Canvas @drawing_canvas is preparing an update that includes an improved user experience and new features. Join us for the next Cartesi community call for more information 👀

Michael Asiedu @MichaelAsiedu_ has successfully completed his RiscZero @RiscZero + Cartesi RFP milestone, which is part of the Cartesi grant program! Documentation is ready, the code is live, and you can even see it in action.
→ https://t.co/p2y1j9imvK

Don’t forget to vote in support of the Cartesi-Chainlink library proposal in the Cartesi grant program. The Cartesi-Chainlink library aims to seamlessly integrate Chainlink’s automation services with the Cartesi ecosystem, allowing developers to easily implement advanced automation features in Cartesi dApps.
→ https://t.co/8gjXUPnjtV
Voting period: 📅 April 17 to 24

Need staking and voting tutorials? Say less
→ https://t.co/Lca1gEbEqR

Have a great Cartesian weekend!

Retweet:

Voting time is here!

The Cartesi-Chainlink treasury proposal has entered the voting phase and is currently undergoing funding review.

Learn more about the project and cast your vote!
→ https://t.co/8gjXUPnjtV

Voting period: 📅 April 17 to 24

Note: To be eligible to vote, you need to stake your CTSI at least 12 hours before the snapshot.

Click here for staking and voting tutorials
→ https://t.co/Lca1gEbEqR

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Catch the tail end of the holiday, the weather is great, don't let it go to waste.

Happy Friday Cartesi Weekly 🐧 brings you some additional ecosystem updates!

You lucky Portuguese speakers have a lot of reading material to dive into:
→ Bruno Maia's article on the maturity of DeFi and its integration into the real world
https://t.co/BMwwHtqDrz

→ Carlo Fragni's article on how Human Readable Transactions (HRT) can strengthen the Ethereum ecosystem
https://t.co/5EZvpghmla​​-transacoes-legiveis-por-humanos-hrts-podem-fortalecer-a-seguranca-do-ecossistema-ethereum/

Comet is preparing for the second quarter, with the Cartesi Rollups 2.0 testnet alpha version coming soon → https://t.co/98YdHsUEpK

We have a new Cartesi funding program proposal for your feedback, and we would love to hear your thoughts. Check out the Cartesi-Chainlink library, aimed at seamlessly integrating Chainlink's automation services with the Cartesi ecosystem
→ https://t.co/NS1KBxECDv

For more updates, they will all be announced in the ecosystem update conference call on Monday!
→ https://t.co/ch9ov7xng4 or livestream on X

Retweet:

May Cartesi's April be as delightful as a spring breeze, with technological innovations blooming like spring flowers, and community development nurturing like spring rain, flourishing upward! May this month bring more opportunities and success to Cartesi, continuing to shine in the blockchain world!

Market trends cannot be achieved overnight, build slowly, and you will eventually succeed.

Dave: Not the hero we want, but the hero we need

Safety has always been a keyword in the crypto space. Without complex systems, algorithms, and processes to fiercely resist attacks, this industry could not have grown into a behemoth with a market cap exceeding $3 trillion in under twenty years. As you stroll along the first line of defense, you inevitably encounter anti-fraud systems that prevent invalid state transitions by allowing anyone to challenge and prove dishonest behavior. In the case of Layer-2 rollups, they package thousands of off-chain transactions into a single on-chain record, with anti-fraud proofs essentially acting as a 'guard force'.

Since Layer-2 rollups regularly submit states to the mainnet, these states are either formally recognized through anti-fraud proofs or are optimistically assumed to be valid (which can later be challenged and proven with anti-fraud proofs), such algorithms must be very robust. Especially now, with over $30 billion in value locked in. However, the vulnerabilities in anti-fraud proofs make them a ticking time bomb in the L2 ecosystem.

Thus, Cartesi designed a new permissionless, interactive anti-fraud system called Dave. While its name may sound like an unremarkable ordinary person standing at a bar, Dave might actually be the answer to securing the $30 billion total locked value (TVL).

Optimistic Rollups: Scaling Ethereum, but at what cost?

Let’s delve into Optimistic Rollups (ORs), the darlings of the Ethereum scaling ecosystem. They are named so because they pre-assume off-chain transactions are valid (without prior anti-fraud proofs), and these L2 protocols pride themselves on increasing Ethereum's throughput by up to 100 times.

By binding security to Ethereum's base layer, ORs publish transaction results on-chain while processing batch transactions off-chain. Naturally, there must be a backing to ensure everyone's honesty, which exists in the form of a challenge system—where batch transactions can be questioned with anti-fraud proofs within a specified timeframe. This way, security is maintained without continuous on-chain verification.

But the problem is: traditional anti-fraud algorithms have flaws. In fact, there are quite a few defects. Participating in dispute resolution is not only costly but also susceptible to 'Sybil attacks'—where an attacker floods the system with fake identities—which can overwhelm these mechanisms. Moreover, the entire process is extremely lengthy, meaning a well-funded adversary can potentially win after a prolonged war of resource attrition. A successful Sybil attack is akin to evil forces on the battlefield overwhelming noble but outnumbered heroes.

Cartesi's Anti-Fraud Game Changer

The think tank of the modular blockchain protocol Cartesi could not sit idly by and ignore the potentially fatal flaws of Optimism's OPFP and Arbitrum's BoLD. Instead, their ingenuity developed Dave, designed to serve as a 'public good' for the Ethereum ecosystem. Dave is based on Cartesi's Permissionless Refereed Tournaments (PRT) primitives, balancing decentralization, security, and liveness, creating a robust line of defense against malicious actors, virtually unaffected by Sybil attacks, as even a single honest validator can enforce the correct state on-chain—regardless of how many adversaries initiate an attack.

What’s the secret of Dave? A divide-and-conquer strategy that forces Sybil attackers to fight among themselves, leading to their self-destruction while honest validators face minimal resistance. The design of the algorithm results in exponential increases in delay and resource costs for attackers launching Sybil attacks, while the cost for honest participants remains negligible. A recent post at https://t.co/VvTpEVZfju demonstrates how Dave can thwart a million ETH Sybil attack with just 7 ETH from honest validators.

Another clever feature of the system is the speed of dispute resolution; for any realistic number of Sybil attacks, disputes can be resolved within 2-5 challenge cycles, keeping the network running smoothly.

Unlike OPFP or BoLD, Dave allows (but does not require) honest validators to collaborate trustlessly as a collective action without centralized trust. Because you don’t have to be a crypto whale to fight fraud, it empowers smaller players to protect the integrity of rollups, no matter who the adversary is. In short, the attempts of fraudsters to manipulate ORs are destined to fail: the mathematical principles behind Dave make manipulation a losing gamble.

The moment of truth arrives, and Dave steps up

Rollups are not a trivial branch of the crypto world; they have now become its pillars. As more value accumulates on L2 and ORs, traditional anti-fraud proofs need to be redesigned, just as a powerful army must embrace new technologies and rejuvenate itself through new blood for future strength.

Dave may be the optimal solution, providing resistance to Sybil attacks, fast dispute resolution, and minimal resource demands on honest validators. Cartesi focuses on application-specific rollups, making Dave a natural choice to scale Ethereum's security while keeping L2 lean and efficient.

Congratulations to the following 5 friends for answering all 5 questions correctly. Please message me directly on x to claim your reward.
@chen_bit
@StoneWind666
@Annafuture3
@Coinfuture_Pro
@bitzzan

"The strength of Web3 security depends on its weakest link."

Cartesi co-founder @erickdemoura analyzed the attack by the Lazarus Group on @Bybit_Official and explained why verifiable and reproducible builds are key to preventing similar hacker attacks.

https://www.163.com/dy/article/JQK3ETOK0518RM7G.html

#Spring has arrived, sharing the spring vibe with Cartesi.

#Community Quiz, we will continue last week's activities. There are 5 questions under this activity tweet, with a total of 5 winning spots, randomly selecting 5 users who answer correctly to receive a $20 equivalent in $CTSI rewards.

Activity time: 2025/03/14 - 2025/03/21
💕How to participate:
1. Follow @CartesiCN, Like & RT this tweet;
2. Join the Telegram group: https://t.co/62gMUhaYPr;
3. Leave your answers in the comments;

📷Friendly reminder: Quiz answers can be obtained through the Telegram group or the WeChat public account “CTSI Chinese Community.”

1. Cartesi supports ( ) ( ) programming languages to build DApps, name any two;
2. Besides simulating the RISC-V architecture, Cartesi machines can ( );
3. Name any two partners of Cartesi ( ) ( );
4. The purpose of the Honeypot DApp is ( );
5. We can view Cartesi's ecological projects in ( ).

@hasaki679
@StoneWind666
@Annafuture3
@chen_bit
@awoov47457349

Congratulations to the friends mentioned above for becoming the lucky winners of the first phase of the Cartesi Twitter event. Please, the winners should directly message us to receive a $20 reward. See you in the next event💕💕💕