Erick de Moura (Cartesi): “Blockchain development is hard, it is our responsibility to make it easier.
In an opinion piece, Erick, co-founder of Cartesi, believes that the industry needs to collaborate more to make the work of blockchain developers easier. Cartesi is a second-layer protocol based on Ethereum that is committed to simplifying blockchain development and promoting the development of modular blockchain infrastructure.
The blockchain industry is at a critical inflection point. Web3 lacks consumer applications that can achieve mass adoption, but new infrastructure projects continue to emerge. We have to face an unpleasant reality: 15 years later, our dream of a decentralized web has not yet been realized.
Penguin enthusiasts: I, the one and only penguin, have been busy building.
Here is the latest information about ecosystem progress, technology releases, media coverage, and community dynamics. Feel free to browse without worry. We continue to move forward!
Another week has come to an end, and as usual, we bring you the Cartesi Weekly Report, which includes the latest updates from the ecosystem 🐧 https://fxtwitter.com/cartesiproject/status/2014699729310122288
Developers and aspiring developers can experience the building process of Cartesi firsthand on our interactive Playground dApp. This dApp has gained significant attention during the holiday events. It was created by our developer advocates and is inspired by CryptoZombies, featuring three levels to guide you into the Cartesi framework easily. Click here to experience:
The first podcast episode we joined for 2026 is now live! A big thank you to the Crypto Coin Show for inviting our co-founder Felipe Argento to share the latest updates about Cartesi. Please check out this video and let us know what you think about this novel way of explaining technology:
→ https://www.youtube.com/watch?v=do4hmhFPQNY
The developers of Locale Network have open-sourced their results L{CORE}, a self-hosted certification stack that addresses the "IoT trust issue" by cryptographically validating sensor data (temperature, energy generation, traffic statistics) before it is on-chain.
They use Cartesi as their computational layer for verifiable fraud, running a complete Linux runtime environment and SQLite database within Cartesi's RISC-V virtual machine to perform deterministic validation of device signatures and complex queries, ensuring that all IoT certifications are cryptographically verifiable and contestable. Check it out and give them some support:
Community editors have been quite busy this week! After InfoFi services were shut down, video editing has become the new trend. Watch the video where Cartesi co-founder Erick De Moura explains Cartesi's mission:
Speaking of missions, take a look at this latest Linux meme provided by Cynthia, which vividly illustrates the natural evolution from the most powerful operating system in the software world to the Cartesi chain version:
Real construction. Real data verified on-chain and settled securely.
By achieving fraud-verifiable settlement through IoT authentication, the vision of handling complex data in a verifiable and scalable way is realized, thus opening the door for decentralized payments (DePIN), tokenization of real-world assets (RWA), and smart city infrastructure applications.
January has flown by, and we are already in 2026. Want to start developing with Cartesi but don’t know where to begin?
Here’s a recap of one of our favorite festive development moments: a simple, easy-to-follow three-step challenge designed by our developer advocacy team.
Experience it now: https://quests.mugen.builders/
I. "Messaging" Challenge: Learn about Cartesi's inputs and outputs
II. Explore State: Memory updates + read values at any time
III. Add Resources: Use our portals + unlock new features
Complete the challenge, submit your results, and take one last look at the festive atmosphere’s rich visuals!
GM, write in your favorite language: Python, Rust, JavaScript, C++ or other languages! Cartesi supports all of these languages and gives you complete control over this powerful operating system to build your application chain your way. Take action!
The weekend is here, and so is Cartesi Weekly, bringing the latest ecosystem news🐧 https://fxtwitter.com/cartesiproject/status/2012163024639967471
Cartesi Rollups SDK v2.0.0-alpha.26 has been released, currently aimed at testers and core developers. Claudio Silva shared his insights on this release, which paves the way for smoother, faster, and more efficient performance:
"Best Execution Environment" is more fitting than ever. As Felipe Argento (https://x.com/felipeargento?s=21&t=tt0vf2syxA00nU3tvp5kFQ) emphasized, Cartesi Machine brings a complete Linux operating system to the blockchain, enabling users to perform complex computations using familiar languages like Python, C++, Rust, without any compromises. It is built on a fully deterministic RV64GC RISC-V instruction set architecture (ISA), leveraging decades of software development experience while maintaining forward compatibility and not sacrificing security or decentralization features.
Is the future of money being built in Brazil? Our core writer Carlo Fragni has published articles on exame and cryptomagazinebr, explaining how institutional strong adoption is shaping the next wave of cryptocurrency in the country and why robust infrastructure is crucial. Cartesi positions itself as the preferred solution for true DeFi, RWA, and institutional-grade use cases, bringing Linux-based computing to the blockchain, allowing institutions to use mature Web2 tools without sacrificing security and decentralization. If you understand Portuguese, this article is worth a read; if not, let AI help you translate:
A year has passed, yet it remains breathtaking: Cartesi Machine is exactly the blockchain execution environment developers have been eagerly awaiting. Decades of software resources are now within reach, featuring a fully deterministic RISC-V architecture, permissionless fraud-proof mechanisms ensuring security, Ethereum compatibility, and a future-ready design.
As the new year begins, we warmly invite you to review the Transparency Report.
Learn how the Cartesi Foundation supports the ecosystem, and how its diversified funding is allocated to project grants, research, and operations, all aimed at ensuring long-term sustainability.
Today is Friday, and it's time once again for the weekly Cartesi newsletter, summarizing the major events in the ecosystem this week 🐧 https://fxtwitter.com/cartesiproject/status/2009626317457961240
First, let's take a look at L2BEAT's monthly review to learn about Cartesi's technical news in December, including enhancements to the Cartesi Execution Environment, new foundational support in the latest Cartesi Rollups node for the PRT fraud-proof consensus mechanism, and more:
Honeypot is a creatively designed bug bounty app designed to encourage open and incentivized audits of Cartesi technology by the community. With its brand-new bond mechanism, the Cartesi project is thriving, the PRT fraud-proof system has been strengthened, and now there are 50,000 $CTSI tokens up for grabs:
Although the holidays are over, surprises are still arriving continuously, and winners from around the world have received generous gift packages. Check out the unboxing videos shared by Swarup and GoodnessMbakara—we can't wait to see more amazing content:
Vibecoding is thriving. But have you ever written a Cartesi app using Vibecoding? It's said that using Vibecoding in mainstream programming languages is the ultimate approach.
#ThrowbackThursday ( #ThrowbackThursday ) Take a look back at our contributor Shaheen Ahmed's quick tutorial on building a simple voting app using Cursor ↓
Another week is about to end, and the new edition of Cartesi Weekly will soon be published in your feed 🐧 https://fxtwitter.com/cartesiproject/status/2002046382476329039
PRT Honeypot v2 is preparing to receive bounty deposits. Meanwhile, a new feature has been added to its page: a visual banner to display the status of ongoing disputes. Click here to view:
→ https://honeypot.cartesi.io/
Now you can witness how the PRT anti-fraud system operates efficiently to ensure the fairness of the final results. You can also track the exact transactions that triggered disputes, and even submit transactions to trigger disputes on the Sepolia testnet, thanks to the tools developed by the DevAdvocacy team:
→ merkle.mugen.builders
Speaking of DevAdvocacy, this week its head Joao Garcia guest-starred on the Developer DAO's DevNTell podcast, explaining all technical concepts to the audience together with Narb. If you missed it, you can click here to watch the recording:
→ https://www.youtube.com/watch?v=Oe3Jv9wnkos
Portuguese users also have benefits: please read the latest article by Bruno Maia published on Livecoins, exploring the intersection of blockchain and artificial intelligence:
Finally, the holiday challenge event is in full swing, where both developers and non-developers can earn rewards by completing technical challenges and interactive tasks. Please keep an eye on this dynamic in the coming days, as we will welcome the arrival of Christmas with a Christmas countdown calendar from Penguin Publishing.
Congratulations to community members Divesh, dejavu, Black Adam, PrinceNonso, and Moonzz for winning the competition! So far, there’s another chance tomorrow to win peripheral gift packages. Who will be that lucky one?
Before that, have a great weekend everyone! If you want to chat, feel free to join our Telegram group: t.me/cartesiproject. Have a great weekend everyone!
Now, you can view in real-time whether a dispute has occurred and watch how Cartesi's anti-fraud mechanism PRT efficiently identifies and executes fair judgments. This is thanks to the convenient pop-up banner displayed at https://honeypot.cartesi.io/
Wondering which transaction triggered the dispute? You can view it clearly. In this case ↓
To experience the anti-fraud system, you can submit a transaction to trigger a dispute and witness the operation of PRT through the Merkle tree visualization tool presented by Shaheen Ahmed: https://x.com/riseandshaheen/status/1998317823865893245. You can also get an early preview of future dispute visualization tools, currently using synthetic data.
You can experience the tool firsthand on the Sepolia test network: https://merkle.mugen.builders/.
If you have any questions, please contact us. Don't forget that all contributors to Cartesi are on Discord, collaborating and developing openly, feel free to join: discord.gg/cartesi
Tomorrow at 4:30 PM (UTC), please tune in to the X website or YouTube channel to watch the live broadcast. Our contributor Joao Garcia will guest on Developer DAO, discussing all aspects of Cartesi and how to build using any code while inheriting the security of Ethereum.
Register to receive notifications: https://luma.com/yfjj75qb
Happy weekend! Cartesi Weekly is back with a new round of ecosystem updates🐧 https://fxtwitter.com/cartesiproject/status/1999479428162912535
Cartesi co-founder Felipe Argento discussed Ethereum's Fusaka upgrade and its renewed focus on Layer 1 scalability in a commentary piece for Benzinga. A timely commentary on the direction of Ethereum infrastructure development and why capacity enhancement remains crucial:
In Brazil, our ecosystem growth lead Bruno Maia was a guest on exame's "Future Currency" podcast, discussing Bitcoin inflation, programmable trust, and how blockchain drives financial inclusion and innovation. Definitely worth a listen:
L2BEAT's latest monthly review also reflects the progress of the ecosystem in November, highlighting several key points for Cartesi, including the upgrade of PRT v2 and ongoing machine-level improvements. If you missed it, you can check it out here:
In terms of security, PRT Honeypot v2 is now live as a Stage 2 application chain Rollup, further enhancing security standards with stronger safeguards and higher bounties. If you're interested in testing anti-fraud systems, this project is worth exploring:
For developers interested in how the underlying system works, Shaheen Ahmed shared a Merkle tree visualization demonstration that details evidence submission, data flow, and dispute resolution mechanisms in the PRT system:
Community discussion is also important. Carlo Fragni reviewed a recent discussion with a computer science professor, sharing insights on how a deep dive into Cartesi architecture transformed initial concerns into a clear technical understanding:
Before we wrap up, there's a little holiday news. Congratulations to everyone who snagged a hoodie in the latest newsletter! If you missed out, don’t worry. This Monday, our holiday exploration event will officially kick off, and it’s sure to be a lot of fun. Think surprises, daily fun facts, and all sorts of holiday snippets along the way. Remember to turn on notifications and get ready for surprises! 🎄
That's it for this week's content. Wishing everyone a pleasant weekend, take a good rest, the holiday exploration event is about to begin, and we’ll see you soon! Cartesianists, have a great weekend!
Now, thanks to the PRT anti-fraud system and guarantee mechanism, the security is higher, and the bounty is also higher, up to 20000 $CTSI waiting for you to grab.
The gameplay is simple: try to hack the application and empty the contract: honeypot.cartesi.io