Paradigm leads $6 million seed round for Harmonic, aiming to help Solana reach Nasdaq speed

Harmonic, a Solana infrastructure startup focused on creating an open block-building system, has secured $6 million in a seed funding round led by Paradigm, with participation from undisclosed key Solana stakeholders.

Harmonic's system aims to enhance Solana's efficiency by replacing its current single-leader block proposal structure with a coordinated aggregation layer. This layer routes proposals from multiple competing block builders (like Jito and Temporal) to validators in real time, allowing validators to select the best block based on their criteria, such as maximizing revenue or avoiding toxic MEV.

Co-founder Jakob Povšič stated that this infrastructure brings "Nasdaq-style block routing" to Solana, positioning it to achieve higher throughput necessary for scaling to 1 million transactions per second. Paradigm noted that this open aggregation model creates a competitive marketplace for block production, resulting in exchange-grade performance.

(Source：The Block)