# Prysmatic Labs Validator Client Implementation This is the main project folder for a validator client implementation of Ethereum Serenity in Golang by [Prysmatic Labs](https://prysmaticlabs.com). A validator client attaches to a running beacon node in order to perform proposer/attester responsibilities and manage the lifecycle of a particular shard upon being assigned to one. Before you begin, check out our main [README](https://github.com/prysmaticlabs/prysm/blob/master/README.md) and join our active chat room on Discord or Gitter below: [![Discord](https://user-images.githubusercontent.com/7288322/34471967-1df7808a-efbb-11e7-9088-ed0b04151291.png)](https://discord.gg/KSA7rPr) [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/prysmaticlabs/prysm?badge&utm_medium=badge&utm_campaign=pr-badge) Also, read the latest sharding + casper [design spec](https://github.com/ethereum/eth2.0-specs), this design spec serves as a source of truth for the beacon chain implementation we follow at prysmatic labs. Check out the [FAQs](https://notes.ethereum.org/9MMuzWeFTTSg-3Tz_YeiBA?view). Refer this page on [why](https://medium.com/@djrtwo/casper-%EF%B8%8F-sharding-28a90077f121) we are combining sharding and casper together.