Members of the previous, current, and next committee.With sync committees, the light client does not need to know the entire validator set or the full beacon chain. How Do Sync Committees and Light Clients Work Together? A light client can trust these headers to represent accurate and validated blocks.

This committee continually signs block headers for each new slot in the beacon chain. A new committee is chosen every 256 epochs, roughly 27 hours. What Are Sync Committees?Ī sync committee is a group of 512 validators, randomly assigned by the Ethereum 2.0 network. Light clients are made possible by sync committees. There would be no need to connect to the network via a 3rd party node or service. Light clients allow you to run a trust-minimized wallet on your phone. Altair will introduce light clients to Ethereum 2.0 for the first time. Light clients are small nodes able to run on lower resource kit. We’ve used our unrivalled knowledge and expertise to simplify the key details for you: What Are Light Clients? But what are light clients, and how do they work?īlockdaemon is the leading Ethereum 2.0 infrastructure provider. They’re considered the flagship of the change. Ethereum 2.0 Light Clients: The Key DetailsĪs mentioned above, light clients are the main aim of the Altair fork. This will move Ethereum to proof-of-stake and reduce energy consumption by a claimed 99.5%. Altair and London bring the two networks closer to convergence. That is, the alignment with the Ethereum network. Long term, Altair is part of the ‘The Merge’. Altair will also boost block proposal rewards, giving successful validators a greater share. The network had been softened to encourage early adoption. Penalties are being increased, aligned with the initial Ethereum 2.0 protocol. Altair will achieve this through sync committees.Īltair is also tightening Ethereum 2.0. They will not need to connect to an external provider. With this, mobile phones or embedded devices will be able to verify the blockchain. We’ll give you a digestible introduction, focusing on the key details you need to know.įirst, let’s establish some context and look at why the Altair Fork is happening… Why Is The Ethereum 2.0 Altair Hard Fork Happening? In this article, we’re going to concentrate on light clients. This article is only concerned with Ethereum 2.0 and will not go into the London fork.

Note that the Altair upgrade follows with the ‘London’ fork on Ethereum. Altair does introduce one big change though, light clients.

This is the first hard fork on the network and is relatively minor. The Ethereum 2.0 Altair Hard Fork is arriving this week.

Ethereum light node