Sei

Everyday payments in Korea are coming to the Sei network. TMO Labs, a Korean payment infrastructure company, is integrating Sei into a consumer payments network reaching tens of millions of touchpoints. The TMO wallet plugs into transit, mobile payments, and consumer finance.

Multi-proposer blockchains are meant to solve the monopoly on transaction inclusion inherent to single-proposer chains. But multi-proposer designs only solve half of it. Censorship resistance keeps proposers from blocking your transaction; it doesn't keep them from reading it and extracting MEV. Why does this matter? Because in the context of trading, MEV creates inefficient price discovery. If blockchain is fundamentally trading infra, bad prices have follow on effects for the lending, prediction, and derivatives markets that consume those prices. Giga will account for this with Sedna, a protocol that splits each transaction into rateless coded symbols and disseminates small bundles of those symbols across multiple proposer lanes, such that no single lane ever holds enough fragments to reconstruct the payload. The result is a design that eliminates the most common forms of MEV (front running, sandwich attacks, etc.) almost entirely. For trading, that means order flow privacy is a property of the protocol. On single-proposer chains, the solutions for common MEV are application-layer workarounds: private mempools, encrypted order flow auctions, etc. These work to varying degrees, but they ask users to trust an additional party (i.e., trade one monopoly for another) or accept added latency. Sedna moves that protection into consensus, tying privacy to the same data layer Giga's consensus already requires for liveness.