Our happy-path blocks now publish ~0.2s into the slot, down from ~1s. That's within the first slot interval. The change: a block-building optimization from a recent PQ interop call. We prepare blocks one interval earlier, doubling our budget from 0.8s to 1.6s.

Proving time is unchanged, but the same work now lands comfortably inside the deadline. Benchmarked on our servers (8 cores / 16 threads, 64 GB). The happy path here is 1-attestation blocks with a single proof per attestation (no compaction).