Zero-Knowledge Proofs (ZKPs) are rapidly becoming one of the most powerful tools in the privacy and scalability toolkit for modern cryptography and blockchain systems. Their ability to verify information without revealing it unlocks new possibilities for trust, security, and decentralization. Advancing ZKP technology, however, requires deep collaboration—bringing together researchers, developers, and practitioners to tackle complex theoretical and practical challenges. In order to enhance community collaboration, we started a zero knowledge learning group at the beginning of this year, with one meetup each month throughout 2025. This ongoing effort is creating a vibrant ecosystem where shared learning and cooperation accelerate the development and adoption of ZKP technologies.
Read on for highlights of work underway to grow ZKP expertise in the LF Decentralized Trust (LDFT) community:
Budapest Blockchain Week 2025 was a community driven event series between the 16 and 21 of September organized by the local Hungarian blockchain communities, including but not limited to Polkadot, Ethereum, Swarm and LF Decentralized Trust. Each day of the week was a “Deeptech Day” focused on one specific theme, organized by one community. The topics included regulation, decentralized AI, DAO and Web days. The whole event was free of charge and was hosted by the Óbudai University on a community basis.
The Deeptech Day organized by the Hungarian LF Decentralized Trust (LFDT) community focused on different topics around zero knowledge proofs, both theoretical and from application use-case perspectives.
After a brief general introduction, the first presentation gave a good insight into Naysayer proofs. Naysayer proofs are intuitive combinations of zero knowledge and optimistic “proofs,” having both cryptographic and economic guarantees.
The second presentation focused on efficient zero knowledge primitives. Although current trends of zero knowledge proofs focus on building general purpose frameworks, it is sometimes way more efficient to use atomic ZK algorithms, like accumulators for specific problems.
The third presentation demonstrated a ZK application area: how proof of solvency, liability, or reserve can be realized by different cryptographic algorithms. The third presentation was realized in a hybrid way, being part of the zero knowledge (ZK) learning group of LFDT as well. The LFDT ZK learning group is a hands-on community for zero knowledge and SNARK application development that is exploring during the year different aspects of zero knowledge and SNARK programming in application development.
Despite the heavy technical topics, there was an intensive discussion after and during the presentations. After the meetup, the socializing continued in a local pub.
Organizers and presenters of the Deeptech Day
Although the Deeptech Day and the Budapest Blockchain Week are over, the Zero Knowledge Learning Group (ZK Learning) will continue its work into next year. During the learning group meetings, we will further investigate different aspects of the zero knowledge technology.
If you are interested in contributing or participating in a meetup, check out github repo with all the useful information, or join the LDFT discord channel:
Discord channel of Linux Foundation Decentralized Trust: https://discord.com/channels/905194001349627914/1329201532628898036
Github repo for ZK Learning:
https://github.com/LF-Decentralized-Trust-labs/zk-learning-group
Note: The ZK Learning Group meets the 3rd Thursday of the month. Meeting details and videos of past meetups are available on the Github repo.