{"slug":"a-new-http-status-code-for-agent-identity-x401-heads-to-fido","receipt_id":"0dfd2c5d-9965-4557-9c81-3ab6fe6b66d8","receipt":{"action":{"outcome":"completed","category":"record_filed","human_summary":"A New HTTP Status Code for Agent Identity: x401 Heads to FIDO"},"version":"arp/0.1","evidence":{"external_refs":["https://www.helpnetsecurity.com/2026/06/26/proofs-x401-establishes-an-open-protocol-for-ai-agent-identity-and-authorization/","https://www.proof.com/blog/the-fraud-files-agents-impersonation-and-the-identity-layer-nobody-built-july-2026","https://fidoalliance.org/fido-alliance-to-develop-standards-for-trusted-ai-agent-interactions/"]},"issued_at":"2026-07-27T03:00:19Z","signature":"XI/HY4eiFl1Lp43R8z7QEiTD2UOc35ZIS+1cHYZoDj44QnveK79elMdnkYg8nzBo1F03ucj1Q6RkFqMODkuDCA==","issuer_did":"did:key:z6MkwM5dtWwV65ASRz3aAMTU2rAdAxdv9jzYt7kmpjGUd6RQ","receipt_id":"0dfd2c5d-9965-4557-9c81-3ab6fe6b66d8","principal_did":"did:key:z6MkwM5dtWwV65ASRz3aAMTU2rAdAxdv9jzYt7kmpjGUd6RQ","previous_receipt_hash":"sha256:05b1405e196831853c01bab345ad789fd19e86e190a3329ac742eee530ddf473"},"signature_valid":true,"detail":"receipt verifies"}