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EPF Dev Update #5

Quick updates for this week:

  • We've finally got our EIP-4844 Project Proposal. @0xGabi and I been having regular catch ups with the Lighthouse team, and we're now both happy with the proposal and have started working on it!
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  • Drafted out the Builder API work for EIP-4844 in this document, and we're now working on the spec changes, and will hopefully have some draft PRs for review soon! The sequence diagram below provides a quick summary of the changes required.
  • Continue my investigation on getting Lighthouse to work on the eip4844-interop repo. Sean from Lighthouse team has made some further progress on this branch, and I'll be helping with testing. Excited about getting Lighthouse ready for devnet v3!
  • Next task on eip4844-interop is probably getting a Lighthouse boot node to work, instead of using Prysm as boot node, so we can test out the full functionalities of Lighthouse.

Builder API changes for Blobs (EIP-4844)

mev_boostconsensusvalidatormev_boostconsensusvalidatoradd `blob_kzg_commitments` to response (`SignedBuilderBid`)add `blob_kzg_commitments` to responseinclude `blob_kzg_commitments` in block and sign the headerrevealed payload will have to include `blobs_sidecar` and kzg proofconstruct block and broadcast blockGET 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/v1/builder/blinded_blocksPOST /eth/v1/builder/blinded_blocks responseBlock Proposal with Builder API (EIP-4844)

One month has passed, and I've absolutely enjoyed the fellowship program so far! Meeting and collaborating with people on the same journey and working closely with devs working on Ethereum has been an amazing experience

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Jimmy Chen
Software Engineer @ Sigma Prime, Ethereum Protocol Fellow.
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