Corpus.Core

Core Tech for a Trustless Web3 Stack

Our products

colibri.stateless

Colibri.stateless is an ultra-light client for Ethereum and other L1 and L2 networks. It enables applications to access and verify blockchain data independently, without relying on trusted third parties. Designed for IoT, mobile, and web environments, it uses zk-proofs to deliver secure, efficient, and fully self-sovereign blockchain interaction.

colibri.consensus

Colibri.consensus will be a next-generation consensus client for Ethereum. It is designed to replace the Beacon Chain with a more scalable, efficient, and zk-proof-enabled system, enabling lighter, faster, and more secure consensus for decentralized networks.

Our services

Core tech developement
Consulting
SDK, Licenses, Maintenance
Trustless RPC

Our partners

Our team

Steffen Kux
Co-Founder

Steffen has more than 25 years of experience in method development and software engineering. Since 2017, he has been exploring how Web3 technologies can drive real-world innovation. In 2022, he co-founded corpus.ventures to build decentralized infrastructure for new applications. Today, he focuses on the development of the colibri client, where he is primarily working on zk-based proofs to enable stateless ultra-light clients for Ethereum and other L1 and L2 networks.

Simon Jentzsch
Co-Founder

Simon has more than 25 years of experience in software engineering and system architecture. Active in the blockchain space since 2013, he co-founded Slock.it and contributed to the creation of TheDAO. In 2024, he joined corpus.ventures to help develop decentralized technologies for real-world use cases. At corpus.core, he focuses on product architecture, scalability, and the development of the colibri client.

Jork Leonhardt
Co-Founder

Jork has more than 20 years of experience in technical consulting, project management, and business development. In 2022, he co-founded corpus.ventures to advance decentralized technologies beyond research and into real-world applications. At corpus.core, he oversees business strategy, operations, and partnerships, driving the development and adoption of the colibri client.

Our advisors

Christoph Jentzsch
Co-Founder & CEO of corpus.ventures and Co-Founder & CEO of tokenize.it

Christoph Jentzsch is an entrepreneur and investor focused on advancing decentralized technologies. After contributing to Ethereum and co-founding Slock.it, where he initiated TheDAO, he dedicated his work to building open and self-sovereign Web3 infrastructures. Today, he leads Tokenize.it and corpus.io, supporting the next generation of decentralized applications and startups.

Our blog

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