PQ Interop #030
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Call summary
Targets
- •March 20, 2026 - Heat-proof call #8 focused on Poseidon optimizations — 00:27:52
Decisions
- •DevNet-5 will use 2 keys per validator (proposer + attester) at genesis — 00:13:56
- •Signature serialization standardized to fixed bytes across all implementations — 00:16:36
Highlights
- Devnet 3 Status:
- ·Finalization spec change PR #443 merged—splits votes across blocks for stability — 00:12:05
- ·Long-running devnet stable at 20,000+ slots with Lantern/Qlean/Ethlambda — 00:15:21
- ·Signature serialization changed to fixed bytes across all clients — 00:16:36
- Devnet 5 Design:
- ·DevNet-5 proposing separate keys for proposer/attester to enable independent signing — 00:13:56
- ·Multi-message aggregation possible—single proof for multiple attestation data — 00:42:47
- Research Updates:
- ·Poseidon-1 optimization: only 1.8x slower than Poseidon-2 in plaintext hashing — 00:24:42
- ·Plonky3 v0.5 released with performance improvements — 00:26:10
- ·Heat-proof call #8 on Poseidon scheduled for March 20th — 00:27:52
- Devnet 4 Progress:
- ·ZK-friendly encoding PR for leanSig nearly ready; blocking DevNet-4 rollout — 00:26:24
- ·Recursive aggregation branch for leanMultisig coming after leanSig PR merge — 00:27:08
- Networking And Scale:
- ·P2P topology for subnets >1 needs definition before scaling validators — 00:28:30
- ·Block size concern: multiple proofs per block can reach ~1MB — 00:31:43
- ·Erasure-coded broadcast from EthP2P research should be integrated for proof propagation — 00:32:15
Action Items
- •Emil, Benedict — Merge ZK-friendly encoding PR in leanSig to unblock DevNet-4 — 00:26:44
- •Gajinder, Emil, client teams — Explore multi-message aggregation API to reduce block size to single proof — 00:42:47
- •Gajinder, networking teams — Define P2P topology for subnet scaling and validator distribution — 00:36:59
- •All client teams — Update API and metrics flags for leanQuickStart refactor — 00:54:24
Meeting chat24
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- Gajinder Singh
gm
- Will Corcoran
GEE-EMM We will start in 2-3 mins
- Will Corcoran
- Will Corcoran
Spec changes to review
- Will Corcoran
- Will Corcoran
Devent-4 plan
- Will Corcoran
I wanted to inform you that I won’t be able to attend the today’s PQ Interop meeting. However, I have provided an update in this GitHub issue on the progress made for Lantern: https://github.com/ethereum/pm/issues/1962#issuecomment-4038902590
- Will Corcoran
Sounds like a great FORT MODE discussion item 🙂
- Will Corcoran
“If you can express it, we can prove it” -T.Wambsgans
- Parthasarathy Ramanujam
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Key decisions
Signature serialization standardized to fixed bytes across all implementations
standardized signature serializationDevNet-5 will use 2 keys per validator (proposer + attester) at genesis
separate keys for proposer and attester in DevNet-5