{"slug":"a-scan-of-2-000-mcp-servers-found-zero-with-authentication-2","receipt_id":"9930fb9e-cfc7-4366-afee-441737918681","receipt":{"action":{"outcome":"completed","category":"record_filed","human_summary":"A Scan of 2,000 MCP Servers Found Zero With Authentication"},"version":"arp/0.1","evidence":{"external_refs":["https://arxiv.org/pdf/2603.24775"]},"issued_at":"2026-09-16T01:00:21Z","signature":"ywdNOnB+NBPTdg9aerkfK9M6w0NFVufiK5y3gus5jbY4Bh/QsPiEPDOPNkjNOQt80pbp7nazeBrlhOw99dptCg==","issuer_did":"did:key:z6MkwM5dtWwV65ASRz3aAMTU2rAdAxdv9jzYt7kmpjGUd6RQ","receipt_id":"9930fb9e-cfc7-4366-afee-441737918681","principal_did":"did:key:z6MkwM5dtWwV65ASRz3aAMTU2rAdAxdv9jzYt7kmpjGUd6RQ","previous_receipt_hash":"sha256:0e9c9c1d81a70b8013c95b61729b0dd7dd4bbb3e97d48b7b081676833113cf43"},"signature_valid":true,"detail":"receipt verifies"}