Part 2: Technical Overview

2.1 Introduction
2.2 The Beacon Chain
- 2.2.1 Terminology
- 2.2.2 Design Overview
- 2.2.3 Architecture of a Node
- 2.2.4 Genesis
2.3 Consensus
- 2.3.1 Preliminaries
- 2.3.2 Overview
- 2.3.3 LMD Ghost
- 2.3.4 Casper FFG
- 2.3.5 Gasper
- 2.3.6 Issues and Fixes
- 2.3.7 Weak Subjectivity
2.4 The Progress of a Slot
- 2.4.1 Proposing
- 2.4.2 Attesting
- 2.4.3 Aggregating
- 2.4.4 Sync Committee Participation
2.5 The Progress of an Epoch
- 2.5.1 Applying Rewards and Penalties
- 2.5.2 Justification and Finalisation
- 2.5.3 Other State Updates
2.6 Validator Lifecycle
2.7 Deposits and Withdrawals
2.8 The Incentive Layer
2.9 The Building Blocks
- 2.9.1 BLS Signatures
- 2.9.2 Randomness
- 2.9.3 Shuffling
- 2.9.4 Committees
- 2.9.5 Aggregator Selection
- 2.9.6 SSZ: Simple Serialize
- 2.9.7 Hash Tree Roots and Merkleization
- 2.9.8 Generalised indices and Merkle proofs
- 2.9.9 Sync Committees
2.10 Networking
- 2.10.1 Discovery
- 2.10.2 Gossip
- 2.10.3 RPC
- 2.10.4 Syncing
- 2.10.5 Message Types
2.11 Implementation
- 2.11.1 Protoarray
- 2.11.2 SSZ backing tree
- 2.11.3 Batch signature verification
- 2.11.4 Slashing protection
- 2.11.5 Checkpoint sync