dankrad 02a2b71d64 WIP implementation of Danksharding (#2792)
* Rough structure

* Most of the KZG checks in

* Fixes suggested by Vitalik

* Add low degree check for commitments

* Remove -1 check from degree proof (not needed)

* Require block builders to be validators to simplify things

* remove verify_intermediate_block_bid_commitment

* Rename back to process_block

* Degree check formula corrections

* Updated TOC, bid processing corrections

* Link to latest sharding doc

* Add shard samples + P2P

* Add validator guide for attestations and reconstruction

* Update specs/sharding/beacon-chain.md

Co-authored-by: terence tsao <terence@prysmaticlabs.com>

* Update specs/sharding/beacon-chain.md

Co-authored-by: vbuterin <v@buterin.com>

* Update specs/sharding/beacon-chain.md

Co-authored-by: vbuterin <v@buterin.com>

* Refactor polynomial operations into separate file

* Add missing polynomial functions

* Fix polynomial commitment file toc levels

* Refactor the payload to make better use of unions

* Add reverse bit order convention

* Correct inequality in verify_degree_proof

* Small fix

* Fix polynomial evaluation

* Update specs/sharding/beacon-chain.md

Co-authored-by: George Kadianakis <desnacked@riseup.net>

* MAX_BEACON_BLOCKS_BETWEEN_INTERMEDIATE_BLOCKS definition added

* Sample reconstruction estimate

* Update specs/sharding/beacon-chain.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Fix return value of roots_of_unity()

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/beacon-chain.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/beacon-chain.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/beacon-chain.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Intermediate block -> Builder block

* Some small omissions in intermediate -> builder

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: George Kadianakis <desnacked@riseup.net>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: George Kadianakis <desnacked@riseup.net>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>

* Z1 -> inf_G1

* Fix degree proof bound

* SignedShardSample -> ShardSample

* Typo

* Don't allow 0 for `next_power_of_two`

* Remove unused `ROOT_OF_UNITY` constant

* Throwaway variable name

* Fix function documentation of `bls_modular_inverse`

* Builder block bid increase by at least 1%, no RANDAO processing in builder blocks

* Fix tocs

* Fix tocs

* Fix typo

* Update specs/sharding/polynomial-commitments.md

Co-authored-by: George Kadianakis <desnacked@riseup.net>

Co-authored-by: Danny Ryan <dannyjryan@gmail.com>
Co-authored-by: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>
Co-authored-by: terence tsao <terence@prysmaticlabs.com>
Co-authored-by: vbuterin <v@buterin.com>
Co-authored-by: George Kadianakis <desnacked@riseup.net>
2022-07-18 11:20:25 -06:00
2022-07-15 23:37:32 +08:00
2021-05-28 18:13:22 -07:00
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2019-03-12 11:59:08 +00:00
2020-06-18 14:36:14 +08:00
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2022-06-06 16:03:46 +08:00
2021-08-30 16:29:41 -06:00
2022-07-16 01:40:39 +08:00

Ethereum Proof-of-Stake Consensus Specifications

Join the chat at https://discord.gg/qGpsxSA Join the chat at https://gitter.im/ethereum/sharding

To learn more about proof-of-stake and sharding, see the PoS FAQ, sharding FAQ and the research compendium.

This repository hosts the current Ethereum proof-of-stake specifications. Discussions about design rationale and proposed changes can be brought up and discussed as issues. Solidified, agreed-upon changes to the spec can be made through pull requests.

Specs

GitHub release PyPI version

Core specifications for Ethereum proof-of-stake clients can be found in specs. These are divided into features. Features are researched and developed in parallel, and then consolidated into sequential upgrades when ready.

Stable Specifications

Seq. Code Name Fork Epoch Specs
0 Phase0 0
1 Altair 74240
2 Bellatrix
("The Merge")
TBD

In-development Specifications

Code Name or Topic Specs Notes
Capella (tentative)
EIP4844 (tentative)
Sharding (outdated)
Custody Game (outdated) Dependent on sharding
Data Availability Sampling (outdated)

Accompanying documents can be found in specs and include:

Additional specifications for client implementers

Additional specifications and standards outside of requisite client functionality can be found in the following repos:

Design goals

The following are the broad design goals for the Ethereum proof-of-stake consensus specifications:

  • to minimize complexity, even at the cost of some losses in efficiency
  • to remain live through major network partitions and when very large portions of nodes go offline
  • to select all components such that they are either quantum secure or can be easily swapped out for quantum secure counterparts when available
  • to utilize crypto and design techniques that allow for a large participation of validators in total and per unit time
  • to allow for a typical consumer laptop with O(C) resources to process/validate O(1) shards (including any system level validation such as the beacon chain)

Useful external resources

For spec contributors

Documentation on the different components used during spec writing can be found here:

Consensus spec tests

Conformance tests built from the executable python spec are available in the Ethereum Proof-of-Stake Consensus Spec Tests repo. Compressed tarballs are available in releases.

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