EIP-4844 tracker

[dapplion]

Implementation

• Add params, config and types Add capella hardfork and types #4568
• Make c-kzg library available for Lodestar. Add native bindings for ethereum/c-kzg-eip4844 NodeJS bindings dankrad/c-kzg#3
• Block proposing
  • Add new engine API engine_getBlobsV1
  • Cache returned blobs in beacon to not modify validator cycle code
  • Publish to gossip topic, depending on fork
• Block processing / import
  • Update chain processBlock to take block + (maybe) blobs pair
  • Validate blobs is_data_available, running KZG crypto
  • Store blobs to database + migrate from hot to cold on finalization + prune old blobs < MIN_EPOCHS_FOR_BLOBS_SIDECARS_REQUESTS
• Add p2p ResResp methods BeaconBlockAndBlobsSidecarByRoot + BlobsSidecarsByRange
  • Update register / unregister logic to active those topics only post-eip4844
• Add p2p gossip topic beacon_block_and_blobs_sidecar

Final PR

• Support EIP-4844 - WIP #4774

Devnet items

CC: @g11tech

Pending spec PRs

• Move is_data_available check to fork-choice on_block ethereum/consensus-specs#3185
• EIP4844: Clarify ratelimit behavior for sidecar with zero blobs ethereum/consensus-specs#3174
• EIP4844: Enable withdrawal ethereum/consensus-specs#3181
• Add blob download endpoint (getBlobs) ethereum/beacon-APIs#286

[g11tech]

closing in favour of #5279