Hyperliquid mainnet launches permissionless spot-quoted assets, with USDH becoming the first enabled asset

Stable asset deployers can enable the "quote asset" status upon on-chain request. Any quote asset can be used as a quote asset in the first HIP-1 spot trading pair; new trading pairs between existing base and quote assets can be deployed via a permissionless Dutch auction, independent of the HIP-1 token auction.