Ethereum Consensus Specifications

This repository hosts the Ethereum proof-of-stake specifications for consensus-layer clients. Design rationale and proposed changes are discussed in issues. Agreed-upon changes are made through pull requests. Specifications can be found in specs, arranged by upgrade. Each upgrade builds on the previous, specifying only what it changes. Individual features are developed in parallel and are folded into an upgrade when ready.

Stable specifications

Seq.	Code Name	Fork Epoch	Link
0	Phase0	`0`	Spec
1	Altair	`74240`	Spec
2	Bellatrix	`144896`	Spec
3	Capella	`194048`	Spec
4	Deneb	`269568`	Spec
5	Electra	`364032`	Spec
6	Fulu	`411392`	Spec

Unstable specifications

Seq.	Code Name	Fork Epoch	Link
7	Gloas	TBD	Spec
8	Heze	TBD	Spec

Rendered viewers

Reference tests

Design goals

Minimize complexity, even at the cost of some losses in efficiency.
Remain live through major network partitions and mass node outages.
Select components that are quantum-secure or easy to swap out.
Use crypto and design techniques that support a large validator set.
Minimize hardware requirements such that a consumer laptop can participate.

External specifications

Useful resources

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

eth_consensus_specs-1.7.0b0.tar.gz (3.3 MB view details)

Uploaded Sep 4, 2026 Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

eth_consensus_specs-1.7.0b0-py3-none-any.whl (3.5 MB view details)

Uploaded Sep 4, 2026 Python 3

File details

Details for the file eth_consensus_specs-1.7.0b0.tar.gz.

File metadata

Download URL: eth_consensus_specs-1.7.0b0.tar.gz
Upload date: Sep 4, 2026
Size: 3.3 MB
Tags: Source
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for eth_consensus_specs-1.7.0b0.tar.gz
Algorithm	Hash digest
SHA256	`009054e4e7f88302682bd45fac37b21cf278de6c5cb76a13b1bc4857f2b1db09`
MD5	`2b4617bc0291e0b7339782b04338e056`
BLAKE2b-256	`b2242434c7d30978de72b4edcb0d9dfda6445999c95a94a8618cb84bba16b26c`

See more details on using hashes here.

Provenance

The following attestation bundles were made for eth_consensus_specs-1.7.0b0.tar.gz:

Publisher: release.yml on ethereum/consensus-specs

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: eth_consensus_specs-1.7.0b0.tar.gz
- Subject digest: 009054e4e7f88302682bd45fac37b21cf278de6c5cb76a13b1bc4857f2b1db09
- Sigstore transparency entry: 2705192455
- Sigstore integration time: Sep 4, 2026
Source repository:
- Permalink: ethereum/consensus-specs@756f49cf53c3ebfca603089cb440fe6f8b738aaa
- Branch / Tag: refs/heads/master
- Owner: https://github.com/ethereum
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: release.yml@756f49cf53c3ebfca603089cb440fe6f8b738aaa
- Trigger Event: workflow_dispatch