Try   HackMD

Builder Updates for Blobs (EIP-4844)

Builder API is an interface that enables validators to delegate block building duties. The set of endpoints are exposed by an external block builder (e.g. mev-boost), and consumed by CL clients when proposing a block. EIP-4844 introduces additional changes to beacon block body, execution payload and "blob" data, hence changes will be required on both the Beacon API & builder API to support this.

Block Proposal - Builder flow

End-to-end block proposer flow

Image Not Showing Possible Reasons
  • The image was uploaded to a note which you don't have access to
  • The note which the image was originally uploaded to has been deleted
Learn More →

Beacon API & Builder API changes

mev_boostconsensusvalidatormev_boostconsensusvalidatoradd `blinded_blobs_bundle` to response (`SignedBuilderBid`)add `blinded_block_sidecars` to responseinclude `blob_kzg_commitments` in block and sign the headersign each `blinded_blob_sidecar` individuallysends `SignedBlindedBlockContents` (contains `signed_blinded_blobs`)returns revealed payload and full blobsconstruct block and broadcast block and blobsGET v2/validator/blinded_blocks/{slot}GET v1/builder/header/{slot}/{parent_hash}/{pubkey}GET v1/builder/header/{slot}/{parent_hash}/{pubkey} responseGET v2/validator/blinded_blocks/{slot} responsePOST beacon/blinded_blocksPOST /eth/v2/builder/blinded_blocksPOST /eth/v2/builder/blinded_blocks responseBlock Proposal with Builder API (EIP-4844)
Last changed by 
 
Jimmy Chen
Software Engineer @ Sigma Prime, Ethereum Protocol Fellow.
0
671

Read more

The Impact of Increasing Blob Count: Pectra, PeerDAS and Beyond

There's been lots of recent debates around bandwidth increase that comes with scaling Ethereum's blob count. This document aims to describe what we anticipate in the upcoming DA upgrades.

Oct 3, 2024
Lighthouse PeerDAS Metrics

image

Jul 15, 2024
Kurtosis + Kubernetes

This guide uses k8s bundled with Docker desktop, but should work with other k8s distribution. Note that the Docker bundled k8s only supports a single worker node.

Jul 10, 2024
Gossip Blobs Signature Verification Efficiency

Issue: https://github.com/sigp/lighthouse/pull/2832

Aug 22, 2023
Read more from Jimmy Chen
Published on HackMD