GBX: open market for Solana blockspace

Gravity connects validators to block builders that compete to produce the highest-value blocks, raising validator rewards. For traders, that means one competitive market with a consistent, value-based ordering rule instead of fragmented validator schedulers.

Higher validator rewardsBuilders compete to produce the most valuable block.

More predictable executionOne value-based rule gives traders consistent execution.

Resilient by designMultiple independent builders with native scheduler fallback.

How Gravity Block Exchange connects validators to block builders A validator sends transaction flow to Gravity Block Exchange and receives scheduling decisions back for execution. Gravity broadcasts that same flow to three competing block builders, which return candidate blocks for each auction round.flowschedulingflowblocksValidatorGBXBlock BuilderBlock BuilderBlock Builder
01

Connect

A lightweight sidecar connects the validator to GBX.

02

Compete

Builders compete to produce the highest-value block.

03

Execute

GBX picks the winning block. The validator verifies and executes it.

Better blocks through competition.

Sequencing is a complex, latency-sensitive packing problem. Builders weigh compute limits and transaction dependencies all within a short decision window. Solving it well takes dedicated infrastructure.

Better allocation

Builders take a holistic view of the block by evaluating all flow and running multiple scheduling algorithms to find the best blocks.

Greater efficiency

Simulation and sequencing move off the validator's critical path. Builders simulate against the block as it is built so validators receive blocks that are known to execute.

One ordering rule

Traders meet a consistent, value-based market across participating validators, making transaction ordering clearer and more predictable.

Faster innovation

Sequencing lives outside the protocol, so new algorithms and execution guarantees ship without waiting on a validator-client release.