polygon zk day 2021

The future of ZK Proofs is r̶e̶d̶a̶c̶t̶e̶d̶

3 min readDec 20, 2021
zk day was the summit-to-end-all-summits

December 9th, nearly two thousand viewers joined us from around the world to watch four hours of spirited discussion on the future of Zero-Knowledge Proofs in our ecosystem. This fast-growing space has become a topic of great importance as Ethereum becomes more widely adopted, and all were eager to learn. Polygon’s zk day was packed with enthusiasm, energy, and excitement for the future of privacy in decentralized technology.

polygon zk day tl;dr:

🙌 77k+ Viewers

👩‍🚀 11 Ecosystem Experts

🛠 5 Talks + Panels

4 Hours of High-Level Discussions

The summit to end all summits

We kicked things off with Polygon’s founders, Sandeep Nailwal, Jayntip Kanani (JD), and Mihailo Bjelic, who fueled the audience’s optimism with their captivating intro to Polygon. As hundreds of viewers entered the chat on ETHGlobal.tv, they presented their vision for the future of the project, announcing their acquisition of zk-startup Mir as part of their plans to bring Polygon Zero to life. Check out the Polygon Zero announcement below.

Polygon Zero, as in Zero, reasons not to be excited about the future of zk

With the audience abuzz, Chaitanya Konda and Paul Brody gave us an in-depth demonstration of Polygon Nightfall—an Optimistic ZK-rollup privacy solution. Their session offered participants a chance to dive deep into the team’s efforts to utilize zk-cryptography in the Polygon project. Take a look at their demo below.

Polygon Nightfall, one of the top 10 coolest project names in crypto

A packed day…

Following that up, we hosted back-to-back sessions as Bobbin Threadbare walked us through Polygon Miden: a STARK-based ZK Rollup and Jordi Baylina (Polygon Hermez) took us on a deep dive into PIL: Polynomial Identity Language. Both sessions gave viewers an intimate understanding of the current concepts and challenges at play in the zk space and kept everyone at the edge of their seats.

We rounded out the afternoon with a panel discussion featuring the “who’s-who” of zk researchers, builders, and leaders including Vitalik Buterin, Mihailo Bjelic, Brendan Farmer, Paul Brody, Bobbin Threadbare, Jordi Baylina, and Anna Rose. Into the zk verse ended the day on a high note and proved to be a riveting discussion on the future of zk proofs and their inclusion in our ever-changing ecosystem. Catch up with all the action you missed below, and join our Discord server to discuss these topics with community members from around the world

An incredible panel to round out a wonderful afternoon.

Thank you!

We’d like to thank the Polygon team for giving us the opportunity to facilitate such a momentous occasion, each of our speakers for dedicating their time to share their knowledge with our audience, and most importantly—you, our ETHGlobal community members.

What’s up next:

zk day was an incredible success, and we look forward to building more topic-specific, single-day experiences in the near future. Follow us on Twitter for updates on future events and join our community by heading over to our website.

Applications are now open for ETHAmsterdam, and we look forward to seeing all of you in person in just a few short weeks. (You can view our entire anticipated schedule here.)




Onboarding thousands of developers to the Ethereum ecosystem. Supported by L4, SV Angel, and the Ethereum Foundation.