# Week 10 Over the last two weeks, the Ream team began pivoting to focus on building the pqdevnet infrastructure for lean Consensus (previously known as Beam Chain). While browsing the codebase updates, I discovered that the logic for the issue [Implement publishing gossipsub messages over P2P](https://github.com/ReamLabs/ream/issues/556) had already been implemented as part of the lean/pqdevnet work. So I integrated the latest code to add gossipsub message publishing logic to my work of [Implement /eth/v1/beacon/pool/sync_committees](https://github.com/ReamLabs/ream/issues/215). This week, I also updated my proposal, [Ream Client - A Beam client in Rust: Implement Beacon API Endpoints](https://github.com/eth-protocol-fellows/cohort-six/blob/master/projects/ream-beacon-api.md) to reflect that [Jay](https://github.com/jveer634) and I are joining forces on this work. Other than that I added missing details and outlined the project milestones. I discussed task priorities with the Ream team, and they would like us to take on some of the lean/pqdevnet issues. I will spend some time learning more about the [lean Ethereum spec](https://github.com/leanEthereum/leanSpec), hash-based signatures and their aggregation, and zero-knowledge proof cryptography with zkVMs. This will allow me to contribute to issues for the lean Consensus part of Ream if I progress ahead of my project's milestones. Over the weekend, I attended the [ETHShenzhen](https://luma.com/iqh54330?tk=cOHZ8X) conference and a side event, [Ethereum Protocol Day](https://luma.com/toicyty8?tk=UnwXPf). [Banri](https://x.com/banr1_)'s talk, [Post Quantum Ethereum and its Signature Schemes](https://www.youtube.com/watch?v=54J7TMthdII) was particularly insightful. It walked through the brief history of hash-based signature schemes and explained how recent ones work, which have the potential to be adopted by lean Consensus clients. ## Resources [lean Ethereum](https://blog.ethereum.org/2025/07/31/lean-ethereum) [lean Ethereum spec](https://github.com/leanEthereum/leanSpec) [Ethereum Protocol Day recordings](https://www.youtube.com/playlist?list=PLgPVMJY4tnFPanGAjMdg6xl5GSVzykPcr)