Web3 News

Harmonic: Open Block Building for Solana

Video

Solana processes over 500 million transactions a week, and that scale brings MEV, uneven rewards and an uneven user experience. Centralized markets enforce fairness through regulation; a decentralized network has to build it in.

Harmonic is an open block building system. Builders like Jito, Temporal and Paladin each produce a candidate for the next block, and Harmonic aggregates them so validators can choose the one matching their goals, whether that is revenue or protecting users from toxic order flow.

Originally produced in November 2025. Some details may have changed since.

Website: https://harmonic.gg

X: @harmonic_gg: https://x.com/harmonic_gg

Lightspeed: "Harmonic Fires Back in Solana's Block Building Wars | Ben Coverston" https://solana.com/podcasts/lightspeed/episodes/harmonic-fires-back-in-solana-s-block-building-wars-ben-coverston-2026-03-17

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