eth2.0-specs/specs/_features/eip6914/fork-choice.md

EIP-6914 -- Fork Choice

Table of contents

• Introduction
• Fork choice
  • Handlers
    • on_reused_index

Introduction

This is the modification of the fork choice according to EIP-6914.

Fork choice

A new handler is added with this upgrade:

• on_reused_index(store, index) whenever a validator index index: ValidatorIndex is reused. That is, get_index_for_new_validator() provides an index due to a return value of True from is_reusable_validator().

This new handler is used to update the list of equivocating indices to be synchronized with the canonical chain.

Handlers

on_reused_index

def on_reused_index(store: Store, index: ValidatorIndex) -> None:
    store.equivocating_indices.discard(index)