Optimum’s new peer-to-peer protocol is live on Ethereum mainnet and — according to the company — is meaningfully speeding up block delivery for participating validators. What’s running on mainnet - Optimum launched mump2p on mainnet on October 20. The system runs as a gateway alongside validators’ existing consensus clients (Prysm, Lighthouse, Teku, Nimbus and Lodestar are supported), so operators don’t need to change consensus software or protocol rules. - The protocol uses Random Linear Network Coding (RLNC), a form of erasure coding that sends coded combinations of block data across the network. Nodes reconstruct the original block once they’ve received enough independent coded pieces, rather than relying on multiple duplicate gossip messages. Claims and early measurements - Optimum co-founder and MIT professor Muriel Médard said the protocol delivered roughly double the block delivery speed for about 90% of blocks reaching participating validators. - Optimum’s October launch report claimed blocks arrived 2–4× faster versus Ethereum’s GossipSub baseline, a 7.88× reduction in arrival-time variance, and that mump2p beat the conventional route in 9 out of 10 measurements. - In a dataset covering 50,292 slots, Optimum reported an average advantage of 335 ms (about a 3.3× improvement in that comparison). Lido’s testnet evaluation (Sept. 17–Oct. 15, 180,327 slots) measured blocks 407 ms earlier through mump2p, though the team warned against extrapolating testnet results directly to mainnet. Independent and mixed results - Not all third-party testing replicated Optimum’s headline gains. StereumLabs ran a 36-node mainnet test and saw earlier block arrivals for some clients (Lighthouse, Prysm, Grandine), little change for Teku, and slower arrivals for Nimbus. Their sample did not show statistically significant overall improvement. - Optimum pointed out that a global acceleration component in its network was active during some tests, which may have partially benefited untreated nodes and muddied comparisons. Adoption and ecosystem integration - At launch Optimum listed 16 participating node operators managing ~22,000 validator keys and more than 1.4M staked ETH (a figure Optimum described as “Total Value Boosted,” approximately $3.4B at the time). - Operators reported using the gateway or requiring mump2p in parts of their stacks: notable names include Blockdaemon, Everstake, P2P.org, Stakefish, Luganodes, InfStones, Validation Cloud, and restaking provider ether.fi (which required its 12 node operators to adopt mump2p). - By November 3 Optimum reported adoption at about 7.8% of all staked ETH, up from just over 3% at launch. The service is available to validators for free for block propagation, with onboarding via Optimum’s gateway. Why this matters — and what’s next - Faster and more consistent block propagation can reduce latency, lower the risk of reorgs, and improve the fairness of block and attestation timing — all important for consensus performance and network health. - Ethereum’s longer-term research roadmap explicitly includes erasure-coded networking and segmented block propagation (EIP-8411) as ways to improve delivery of large data objects and execution payloads. Vitalik Buterin has flagged erasure-coded P2P networking as one of several promising improvements; he also discussed more ambitious consensus ideas (drastically fewer directly involved validators per slot, post-quantum signature aggregation and few-slot finality) that remain separate from mump2p and would require further development. - The Ethereum Foundation lists post-quantum consensus signatures and data availability among ongoing research priorities, with core security infrastructure slated for continued work through 2029. Bottom line Optimum’s mump2p is an operational, non-consensus-layer networking add-on that appears to improve block delivery for many participants using RLNC. Optimum’s internal metrics show substantial speed and variance improvements, while independent testing has produced mixed results so far. Wider adoption and additional, controlled measurements will clarify how big an impact coded P2P networking will have on Ethereum’s real-world performance. Read more AI-generated news on: https://app.chaingpt.org/news