Node Types

SXT Chain is a permissionless BFT blockchain operating under a modular architecture consisting of three primary node types:

• Validator Nodes: Maintain BFT consensus and cryptographic integrity by signing and committing updates to table-level data commitments.
  • Get started with Testnet
  • Get started with Mainnet
• Indexer Nodes: Extract and transform blockchain data (or external data) into relational format and submit insert-data transactions to the chain. NOTE: we will be launching permissionless community-operated indexer nodes summer 2025.
  • Get started with Testnet (coming soon)
  • Get started with Mainnet (coming soon)
• Prover Nodes: Generate ZK-proven SQL query results against tamperproof tables and submit proofs for onchain verification. NOTE: today, anyone can run the Proof of SQL repo on their local GPU and begin racing other provers to service query requests on Ethereum through our ZKpay query relayer.
  • Get started with Testnet
  • Get started with Mainnet

The chain does not store raw data onchain. Instead, each table has an associated cryptographic commitment representing its current state. These commitments are updated and signed collectively by the validator set each time new data is inserted.