Solana block space market GBX launches mainnet, connecting approximately 5% staking

The Solana block space market Gravity Block Exchange (GBX) has announced its launch on the Solana mainnet. GBX positions itself as an open and neutral block space market, where block builders compete for the ordering of each block through auctions, rather than having a single scheduler complete the ordering. Its goal is to create a unified ordering market that increases the value of validator block space through competition among builders, while providing users with a clear set of rules.

The mainnet operation status announced by GBX includes: approximately 5% of the total staked validators have been connected, with rewards 20% to 30% higher than the cluster average. Currently, there are two independent block builders participating in each round of auctions, namely Bifrost from Astralane and Titan Builder from Gattaca. Public documents show that validators can connect through the Gravity Connector sidecar without the need for a custom validator fork, currently supporting Agave and Jito-Solana, while support for Firedancer is still in development; when external ordering paths are unavailable, validators can fall back to the native scheduler.