HIP-4 CPI outcome markets look close to going live on Hyperliquid mainnet.
The interesting part: resolution appears to be validator-based.
From the current market config, CPI would resolve into exactly one outcome: below 4.3%, exactly 4.3%, or above 4.3%, based on the official BLS CPI print.
This also looks like the next phase of HIP-4: canonical, validator-deployed markets first (where the protocol accrues all the value), then permissionless builder-deployed outcome markets later.
In other words, HIP-4 may follow a similar path to perps: native markets first, builder-deployed markets later.