{
  "host": "sg.gsc-marketplace.ai",
  "operator": {
    "name": "GreenCore Solutions Corp.",
    "duns": "24-336-6774",
    "url": "https://gsc-em.com"
  },
  "fleet_membership": "AIO Agent host — gen-2 fleet",
  "role": "AIO Agent host SG (1,000 signed slot Cards, Ed25519)",
  "signal_endpoint": "https://sg.gsc-marketplace.ai/index.json",
  "as_of": "2026-08-24",
  "resolver": "https://gsc-registry.ai/resolve/sg.gsc-marketplace.ai",
  "key_attestation": {
    "keyring": "https://dpuone.ai/.well-known/jwks.json",
    "authoritative": true,
    "statement": "the dpuone.ai keyring is the authoritative key set for GSC signatures; a signature that does not verify from it is not a GSC signature",
    "kid": "gsc-aio-cards-2026-08",
    "fleet_keyring": "https://sg.gsc-marketplace.ai/.well-known/jwks.json",
    "note": "AIO slot Cards verify against the host's own JWKS (per-host fleet keyring, kid gsc-aio-cards-2026-08); the estate keyring at dpuone.ai carries the estate signing kids"
  },
  "card": "https://sg.gsc-marketplace.ai/index.json",
  "card_kid": "gsc-aio-cards-2026-08",
  "jurisdiction": "SG-ECO-10060",
  "wire": {
    "status": 200
  },
  "signatures": [
    {
      "protected": "eyJhbGciOiJFUzI1NiIsImtpZCI6ImdzYy1jYXJkcy0yMDI2LTA4In0",
      "signature": "-zBNadp4QNh6JDDi4a65hJh89EOqJ90RTjoO1SNfPVsJt8_KXfwy82YRMxJDryiKm-SUWZIK2m8KNdvoFcxdXg"
    }
  ]
}