---
title: Eth2 Core Teams Workshop - Sharding and Eth1+Eth2 Merge, Feb 2nd, 2021
image: https://i.imgur.com/FrpiLia.png
tags: eth2
description: An educational workshop of sharding and Eth1+Eth2 merge topics with Ethereum researchers and client devs. On Feb 2nd, 2021 at UTC 21:10-24:00.
---

# Eth2 Core Teams Online Workshop, Feb 2021

[](https://youtu.be/uGeIDNEwHjs?t=520)

## Announcements
:::warning
**Latest update: February 3rd, 2021**
- Added links of the slides. (see agenda)
- 🎞️ [>>> Workshop Video <<<](https://youtu.be/uGeIDNEwHjs?t=520) (starts at 8:40)
:::

:::success
- January 30th, 2021
- Added live-streaming link.
- January 30th, 2021
- Updated the agenda.
- January 26th, 2021
- Added "An approximate introduction to how zk-SNARKs are possible by Vitalik Buterin" to reading materials.
- January 20th, 2021
- Please go through this document. 👀
- The agenda program is WIP and suggestions are highly welcome!
- Looking forward to seeing you (remotely)!
:::

## Date and time
- **February 2nd, 2021, at 21:00-24:00 UTC**
- [World clock time](https://savvytime.com/converter/utc-to-ca-san-francisco-co-denver-il-chicago-ny-new-york-city-united-kingdom-london-netherlands-amsterdam-singapore-singapore-australia-sydney-russia-moscow/feb-2-2021/9pm)

## Platforms
- Zoom (invite only)
- [YouTube live-streaming](https://www.youtube.com/watch?v=uGeIDNEwHjs) (public)

## Goals
1. To sync on R&D progress of coming major eth2 upgrades
2. To produce educational videos
3. To get feedback on the latest proposals

## Agenda

### 21:00-21:10 Intro & warm up

:::info
**To Zoom attendees**: we may be able to take some screenshots for the virtual group photos before the session starts. 📸
:::

### 21:10-22:40 Part 1: The Sharding Design and the Cryptographic Primitives


- Speakers: Dankrad Feist and Vitalik Buterin
- An introduction to Kate polynomial commitments
- The design of the committee-based sharding implementation

#### Slides
- 📁 [Dankrad Feist | Introduction to KZG (Kate) commitments: How to hash polynomials](https://docs.google.com/presentation/d/1hEGJd1pT5NpuiHlw91ys6jFpDbNA2ahq5oRWkEk9BRQ/edit)
- 📁 [Vitalik Buterin | Eth2 sharding design, Feb 2021](https://vitalik.ca/files/misc_files/eth2_sharding.pdf)

#### Reading materials (easy -> difficult)

- The latest sharding proposal
- [An explanation of the sharding + Data Availability Sampling (DAS) proposal by Vitalik Buterin](https://hackmd.io/@HWeNw8hNRimMm2m2GH56Cw/sharding_proposal)
- [Data Availability Sampling (DAS) Phase 1 Proposal by Vitalik Buterin](https://hackmd.io/@HWeNw8hNRimMm2m2GH56Cw/r1XzqYIOv)
- (implementation) [eth2.0-specs | DAS PR](https://github.com/ethereum/eth2.0-specs/pull/2146)
- Cryptographic primitives
- [An approximate introduction to how zk-SNARKs are possible by Vitalik Buterin](https://vitalik.ca/general/2021/01/26/snarks.html)
- It illustrates the concept of polynomial commitments.
- Kate polynomial commitments
- [Kate polynomial commitments intro by Dankrad Feist](https://dankradfeist.de/ethereum/2020/06/16/kate-polynomial-commitments.html)
- (implementation) [go-kate by Protolambda](https://github.com/protolambda/go-kate)

### 22:40-23:00 20-min Break

### 23:00-24:00 Part 2: The Eth1+Eth2 Merge - Vision and Approach


- Speakers: Mikhail Kalinin, Guillaume Ballet, and Danny Ryan
- The relationship between Eth1 and Eth2 clients
- The design of the executable beacon chain
- An introduction to the merge eth1-engine Catalyst
- Open questions and future work

#### Slides

- 📁 [Mikhail Kalinin | The Eth2 part of the merge](https://docs.google.com/presentation/d/1llT-gkAMRqS_O8PiK936Yx9Ir7lprJO1L6jeAvx2Bbo/edit#slide=id.gb9ce303660_0_195)
- 📁 [Guillaume Ballet | The Eth1 part of the merge](https://notes.ethereum.org/@gballet/eth1-engine-feb-21#/)

#### Reading materials (easy -> difficult)

- [Eth1+eth2 client relationship by Danny Ryan](https://ethresear.ch/t/eth1-eth2-client-relationship/7248)
- [eth1 + eth2 = Ethereum by Danny Ryan](https://www.youtube.com/watch?v=wEh4u5a-43o&feature=youtu.be) (video)
- [Executable Beacon Chain by Mikhail Kalinin](https://ethresear.ch/t/executable-beacon-chain/8271)
- [Eth1-Eth2 Communication Protocol v2 by Mikhail Kalinin](https://hackmd.io/T9x2mMA4S7us8tJwEB3FDQ?view)

## Attendees
- Eth2 researchers
- Eth2 client devs
- Eth1 client devs (invite to all but request for merge portion)

:::info
It's an educational workshop and we won't make roadmap decisions during the call. If you're not able to make it, the workshop recording will be **live streamed and published** anyway.
:::

:::info
The team leads are authorized and please invite your team members by adding them to the gCal. If you really hate gCal, please contact Hsiao-Wei for RSVP in other ways.
:::

:::warning
Maximum 100 ppl with our Zoom license, so **RSVP is needed**.
:::

#### Group photo <3