PeerDAS Breakout Room - Call #25 | April 15, 2025

[will-corcoran]

PeerDAS Breakout Room - Call 25 | April 15, 2025

• Apr 15, 2025, 14:00 UTC
• Duration in minutes : 60

Resources

• Zoom Link
• Ethereum Protocol Call calendar
• PeerDAS-PM.md
• Google Doc Meeting Notes
• Previous call
• Facilitator email: will@ethreum.org
• Facilitator Telegram: @corcoranwill

Agenda Overview

A. Client Updates
B. Devnet / Testing Updates
C. Spec / EIP Discussion
D. Open Discussion

Agenda Details

Client Updates

CL Client Teams

Team	Active ICs	Call 24 Update
Lighthouse	Jimmy + Sunnyside Labs IC	Fixed node instability bug with DA check; implemented cell proof computation and distributed blob publishing for full nodes.
Prysm	Manu & Terence + Francis & Niram from Base	Completed validation pipeline for data; ready for getBlobsV2/getPayloadV5 integration; testing with Smokeping.
Teku	Dmitrii + Jerone Ost from Soneium	Updated distributed blob recovery per spec; working on cell proof implementation; fixed canonical/non-canonical sidecar API bug.
Nimbus	Agnish & Dustin	Paused custody work for getBlobsV2; improved column syncer with full node reconstruction syncing working reliably.
Lodestar	Matt K, Katya + Derek & Hugh from Base	Completed validator custody implementation with PR ready; working on backfilling and planning getBlobsV2/getPayloadV5 implementation.
Grandine	Hangleang & Saulius Grigaitis	Testing cell proof integration; fixing runtime crash with >30 blobs; adding support for multiple KZG backends.

EL Client Teams

Team	Active ICs	Call 24 Update
Geth	Felix, Marius, Lightclient	Transitioning getBlobsV2 and cell proof calculation from proof-of-concept to robust implementation; new image available.
Nethermind	FCLC, Marcin	Fixed API bug; participating in custody testing; planning efficiency improvements for engine API getBlobsV2.
Besu	tbd	No update provided.
Erigon	tbd	No update provided.
Reth	Roman	Merged implementation PR; fixed blob schedule and multi-blob transaction handling bugs; supporting meeting time consolidation.
ethereumjs	Gajinder	Waiting on PRs; implementing new transaction wrapper this week; working on getBlobsV2 and payload/blobs bundle changes. - Open PR: tx: add peerdas blob transactions support

Devnet / Testing Updates

PandaOps Updates

• peerdas-devnet-6 is now live 🚀 (replacing peerdas-devnet-5 ☠️)
• Spamoor Configuration Discussion
  • Review PR: github.com/ethpandaops/spamoor/pull/30
  • Topic: Configuring Spamoor to generate blob transactions
  • Issue: User experiencing difficulties with blob generation configuration
  • Proposed solution: Use modified version with incremental blob count functionality
    • Specific branch adds parameter: --throughput-increment-interval=600
    • Gradually increases blob counts over time
    • Potential value for future BPO fork testing

Sunnyside Updates

• 04/08 Update
• Proposal for Unified EL Metrics

Sunnyside Plan for This Week

1. Begin with 04/08 baseline metric for CL working without getBlobs
2. Conduct similar testing with additional ELs beyond Geth and Nethermind
   • Focus on varying blobpool performance
3. Identify additional timing metrics for PeerDAS
4. Compare performance with vs. without getBlobs optimizations

Spec / EIP Discussions

Open Specs & Discussions

• Consensus: Remove placeholder MAX_BLOBS_PER_BLOCK_FULU (link)
• Consensus: Implement BPO fork blob limit logic (link)
• Engine API: Add EIP-7594 (PeerDAS) related change (link)
• Builder: Add EIP-7594 (PeerDAS) related change (link)

Builder Spec Discussion

• Current Team Consensus:
  • Prefer removing full responses
  • Return only revealed execution payloads
  • Leverage existing getBlobs function
• Implementation Timing Options:
  • Wait until after main feature completion
  • Include in Fusaka-devnet-0
• Next Steps:
  • Consult stakeholders from MEV ecosystem before finalizing

Draft Specs & Discussions

• Update EIP-7594: Add blob count per tx limit via blobSchedule (link)
• Update EIP-7594: Polish EIP, expand rationale (link)

Discussion Item 01 | BPO Blob Schedule Config

EL Clients

• Four options for EL BPO blob schedule config
• Key questions:
  • Use of named forks
  • Inclusion of timestamps in fork structs
  • Treatment of BPO changes as hard forks with new fork hashes

CL Clients

• Two options for CL BPO blob schedule config
• Key questions:
  • Naming convention scalability
  • Parsing considerations for BPO*_{EPOCH,MAX_BLOBS} format
  • Parameter specification for error handling and ordering rules

Discussion Item 02 | Naming Convention Request

Request to rename the PRs with Add PeerDAS related changes titled prs to BeaconAPI: <the same thing repeated again>, in general Name of the repo/module: the peerDAS related changes happen within?

• This helps keep the PRs more easily distinguishable as multiple items that need ot be tracked.

Discussion Item 03 | Review High-Level Schedule

Date(s)	Item
April 9th	peerdas-devenet-6 live!
May ~5th	Pectra Mainnet
~June 1st	fusaka-devnet-0 (w/ BPO)
June 8-14	EL / CL Interop
Post June 14	Audits: KZG libraries (c-kzg-4844, rust-eth-kzg, go-eth-kzg)

[github-actions]

Discourse Topic ID: 23433

• Action: Updated at 2025-04-14 13:15 UTC
• URL: https://ethereum-magicians.org/t/23433

Calendar Event Updated

• Google Calendar
• Zoom Join URL not available, skipping email notification.

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[ralexstokes]

lets chat about how to have BPO on a devnet by June

[parithosh]

Yeah ideally we have a BPO config format we like by the end of the call

[SunnysidedJ]

Hi, I'm from Sunnyside Labs working on PeerDAS testing. Please find our latest report: https://testinprod.notion.site/Sunnyside-Devnet-Updates-04-15-1d18fc57f54680498c85e6ce41dd7c4e?pvs=4