ADI Blockchain Primer | IDA — Identity for the AI Age

ADI is a zkSync-Airbender-compatible Layer 2 with three networks:

Network	Chain ID	Use
Mainnet	`8400`	Production identity anchoring
Testnet	`99999`	Pre-production & QA
Localhost	`31337`	Local Hardhat node for development

Gas is paid in ADI tokens; identity transactions are typically under 50,000 gas. The platform’s five registries (DID, Schema, Revocation, AgentTrust, ZKProofVerifier) own all on-chain state.