Optimum brings mump2p to Ethereum mainnet across 16 operators

Ethereum’s validators receive blocks over its peer-to-peer network, where arrival time can affect attestations and block proposals. Optimum said on October 20 that its mump2p propagation protocol had gone live on Ethereum mainnet with 16 node operators, covering roughly 22,000 validator keys and more than 1.4 million ETH in active stake, according to Optimum’s launch announcement carried by Optimisus.

The rollout adds a parallel block-delivery path for validators, while leaving Ethereum’s consensus and execution software unchanged.

Which operators are running mump2p?

Optimum’s announcement names Blockdaemon, Everstake, P2P.org, Stakefish, Luganodes, InfStones, Meria, Finoa, Node.Monster, HashKey Cloud, DSRV, RockX, Nansen, Validatrium, Ebunker and Validation Cloud. The company says those operators account for more than 3% of staked ETH. Unchained also reported the 16-operator total and said ether.fi now requires all 12 of its node operators to run mump2p; the software had previously been optional for them.

The rollout is a production deployment of Optimum’s networking architecture, which the company says uses random linear network coding (RLNC). In its announcement, Optimum reported that early mainnet measurements showed blocks propagating two to four times faster than its GossipSub baseline, with 7.88 times lower arrival-time variance. It also said mump2p nodes saw a block first in nine out of ten measurements. Those are company-reported results: Unchained noted that Optimum’s announcement did not explain how the measurements were gathered.

How does the protocol fit alongside Ethereum’s existing network?

Optimum describes mump2p as an added propagation route rather than a replacement for Ethereum’s standard networking. Stakefish, one of the participating operators, says its Optimum Gateway runs beside each beacon node and relays blocks and attestations between the consensus client and mump2p mesh, in parallel with the standard libp2p network. The arrangement gives nodes another way to receive network data without changing consensus or execution clients, according to Optimum.

The timing rationale is that a validator receiving a block late may miss an attestation or have less time to propose and propagate a block. Optimum says earlier and more consistent delivery can improve validator performance; its measurements assess block propagation and arrival timing, rather than demonstrating a specific increase in staking rewards. The company says connecting is free and permissionless, and that it plans to extend the protocol to other high-throughput blockchains after Ethereum.

Sources

• Optimum’s launch announcement carried by Optimisus — optimisus.com
• Unchained noted that Optimum’s announcement did not explain how the measurements were gathered — unchainedcrypto.com