Jendrik Poloczek

Jendrik is Principal Research Engineer at Greenfield, leading the firm’s technical research and infrastructure investments. He was previously Co-Founder and CTO of Reebo, a smart contract monitoring solution and head of engineering of TokenAnalyst, a blockchain data provider, which became part of Coinbase.

Jendrik holds a Master of Science degree in computer science from the University of Oldenburg.

Publications from Jendrik

  • _Research
    Tags: , Published On: November 22nd, 2023

    Without transaction privacy, everything on-chain is public. Users expose their information and metadata. Most users don’t want that - especially institutional ones. Nevertheless, it is by no means certain that transaction privacy will become an essential feature of public blockchains. This research effort discusses regulatory and usage challenges and the most promising approaches and protocols to combat them. It covers their basic ideas and trade-offs and suggests a categorization of the current landscape of transaction privacy.

  • _Investments
    Tags: Published On: August 31st, 2023

    We're thrilled to share that Greenfield is leading Stroom's $3.5M seed funding round. Stroom, based in Kiev, Ukraine, stands out with an innovative approach: their liquid staking protocol allows seamless provisioning of channel liquidity in BTC to the Lightning Network and earning fees through yield-bearing DeFi-enabled lnBTC tokens on Ethereum, all without running a node.

  • _Research
    Tags: Published On: June 30th, 2023

    Bitcoin-related projects are an integral part of our pipeline and our portfolio - such as Sovryn and Foundation Devices. Over the last months, we have extensively looked into the Lightning Network space. In this post, we highlight the latest Bitcoin and Lightning Network developments. A special focus is placed on recent enablers and catalysts, introducing some relevant players, and discussing outstanding challenges that now offer particular opportunities for builders.

  • _Investments
    Tags: Published On: December 21st, 2022

    We are excited to be part of the $7M equity seed round of Foundation Devices. We believe Foundation's sovereign computing platform is critical in empowering users to reclaim their digital sovereignty.