☄️3-2-1: Budapest Is Next, Vienna was amazing, and the Deadline is 25th May

Happy Wednesday, COMETS!

This is the newsletter of Central and Eastern Europe's largest blockchain builders community and goes to 6,000+ builders across the region and beyond.

3 News From Us

1. COMETS Is Coming to Budapest on 27th June

We are hosting our next Builders Meetup on 27th June 2026 in Budapest, and we would love to see you there. Expect great minds and conversations on how artificial intelligence is reshaping blockchain development. We promise the same energy that has defined our events across the region, real conversations and a room full of people who are actually building.

🎟️ Register here​

📧Become our partner​

2. Vienna Was Amazing!

On 17th May 2026, we brought the COMETS community to Vienna for an evening at the intersection of AI and Web3, and it was everything we expected and more. The room was full of builders, researchers, and ecosystem operators.

We were honoured to have Igor Konnov present on AI-Driven Protocol Security, Alfred Taudes on Federated Learning, and Ciprian Carlan break down MiCA and Web3's path into the EU market. Daiana Marculescu opened with the COMETS presentation, and the evening closed with a panel discussion on how artificial intelligence is reshaping blockchain, featuring Daiana Marculecu, Krzysztof Paruch, Mihai Suta, and Igor Konnov.

Huge thanks to VI3NNA Congress, Vienna Blockchain Week, and Austrian Blockchain Center - ABC Research for including us in this incredible week and for helping us bring the Austrian community together.

​Thank you to every speaker, panellist, and attendee who made it a night to remember.

3. 25th May Is the Deadline to Declare Your Crypto Revenue for 2025

If you traded, staked, or received airdrops in 2025, you have until 25th May 2026 to file your Single Tax Declaration. That is just around the corner, and doing it under time pressure increases the risk of mistakes.

Our step-by-step guide, verified by accounting experts, takes you through the full process: tax calculation method, social contribution thresholds, and correct form completion. 1 hour of your time invested for clarity and peace of mind.

And if 2025 was quiet for you but you plan to be active in 2026, this is a good moment to understand the new rules too. Taxes rose from 10% to 16% and there are plenty of revenue cases that are calculated differently than most people expect.

📝Access the guide​

2 Builders like you

​Ivan has 11 years in software engineering, 6 of them in security infrastructure for distributed systems. He works the layer between product and partners: technical scoping, integration delivery, documentation, and deployment support. He reads code, writes specs, and handles partner-facing complexity so the core team can stay focused on building. He is now looking for his next role.

​Alexandra is a student at Politehnica University Timisoara, a developer and problem-solver passionate about security and building things that matter. She thrives under pressure, whether competing in hackathons, taking on CTF challenges, or building decentralised applications.

1 Idea From Others

​Daiana Marculescu on a trap many Romanian crypto holders encounter:

“In Romania, you can owe tax even if you lost money on crypto overall. The Single Tax Declaration has no field for losses, and there is currently no legal mechanism to offset what you lost against what you gained. The state taxes positive transactions only, regardless of your total result. [...]”

​See the full post on X​

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Until next time,

COMETS
​Blockchain Builders Community​​

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