ERC-8004 acts as a registry for three vital aspects of AI agents: their Identity, which defines who they are; their Reputation, providing a history of their behavior; and Validation, which serves as proof that tasks were executed correctly. Through the publication of ERC-8004 Subgraphs across 8 chains, The Graph creates a consolidated directory for trust across different blockchains. This means an agent on Base can use a Subgraph query to instantly verify the standing of an agent on Arbitrum. Without such infrastructure, agents would be forced to scan through raw blockchain data to authenticate credentials, a process that would bring the network to a complete standstill.