# LimeChain

- Channel: [ZuBerlin](https://streameth.org/zuberlin)
- Date: 2024-06-11
- Duration: 28:17
- Topics: blockchain, developers, community building, innovation, cybersecurity
- Watch: https://streameth.org/watch/66684f7006eda795c8925909
- Download: https://vod-cdn.lp-playback.studio/raw/jxf4iblf6wlsyor6526t4tcmtmqa/catalyst-vod-com/hls/aacb29uv3whd8hgm/1080p0.mp4

## Description

Clip The video features a presentation by Daniel Ivanov from Limechain, who discusses the research and development of vanilla-based sequencing and preconfirmations in the context of roll-ups and blockchain interoperability. Funded by a grant from the EF, their work aims to provide neutral solutions for these technologies. The talk covers four major design decisions: discovery, leader selection, preconfirmation types, and integration with the L1PBS pipeline. Daniel explains various options for each design aspect and their implications for wallets, users, builders, relayers, and proposers in the blockchain ecosystem.

He emphasizes the importance of standardizing certain aspects to achieve unmatched interoperability and rationalizes the current social consensus on preconfirmations. Daniel acknowledges that there are differing opinions within the community and seeks to establish a socially accepted view.

Several scenarios are presented regarding how transactions are propagated among different actors (builders, relayers, proposers) in the network. The pros and cons of each scenario are examined, particularly focusing on issues like trust, delegation, and potential slashing risks for proposers.

Daniel highlights the need for an EIP on the builder API as one of the missing pieces to move forward collaboratively but not fragmented. He concludes by posing questions to the community about improving these systems further. The presentation ends with a