EIP-7719: P2P History Network

KolbyML · June 7, 2024, 2:04am

Draft*

This EIP formalizes the usage of Portal’s History network for inclusion in Ethereum. The network lookups are based off blockhash.

Link to EIP PR

Link to formal spec:

github.com

ethereum/portal-network-specs/blob/master/history/history-network.md

# Execution Chain History Network

This document is the specification for the sub-protocol that supports on-demand availability of Ethereum execution chain history data.

## Overview

The chain history network is a [Kademlia](https://pdos.csail.mit.edu/~petar/papers/maymounkov-kademlia-lncs.pdf) DHT that uses the [Portal Wire Protocol](./portal-wire-protocol.md) to establish an overlay network on top of the [Discovery v5](https://github.com/ethereum/devp2p/blob/master/discv5/discv5-wire.md) protocol.

Execution chain history data consists of historical block headers, block bodies (transactions and ommer) and block receipts.

In addition, the chain history network provides individual epoch accumulators for the full range of pre-merge blocks mined before the transition to proof of stake.

### Data

#### Types

* Block headers
* Block bodies
    * Transactions
    * Ommers

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