{"slug":"a-scan-of-2-000-mcp-servers-found-zero-with-authentication-3","receipt_id":"82f598e2-97c8-4f53-941d-db57dc2397c4","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":"2026-09-20T13:00:21Z","signature":"ZNdQFMI99CJQ9YlR+jJBUAmGoTx+S7TyIfPiGqsMtgHa281L8oBeqZdu3QL1xIqgiy0gd6kZWc6Tc8Oh1EUcAQ==","issuer_did":"did:key:z6MkwM5dtWwV65ASRz3aAMTU2rAdAxdv9jzYt7kmpjGUd6RQ","receipt_id":"82f598e2-97c8-4f53-941d-db57dc2397c4","principal_did":"did:key:z6MkwM5dtWwV65ASRz3aAMTU2rAdAxdv9jzYt7kmpjGUd6RQ","previous_receipt_hash":"sha256:542a9f5461fe050f450876aa44eed21dcc944b24739f6cf772c3a1542133020a"},"signature_valid":true,"detail":"receipt verifies"}