{
  "attestation": "keyring",
  "statement": "The GSC resolver attests: the authoritative keyring for every GSC signature is the JWKS at the declared trust anchor. The resolver attests the key; the key signs the cards and the readings.",
  "keyring": "https://dpuone.ai/.well-known/jwks.json",
  "explainer": "https://dpuone.ai/keyring.html",
  "kids": [
    "gsc-cards-2026-08",
    "gsc-radar-2026-08",
    "gsc-x402-receipts-2026-08",
    "gsc-amp-2026-08",
    "gsc-rco-2026-08"
  ],
  "operator": {
    "name": "GreenCore Solutions Corp.",
    "duns": "24-336-6774",
    "url": "https://gsc-em.com"
  },
  "as_of": "2026-09-09",
  "signatures": [
    {
      "protected": "eyJhbGciOiJFUzI1NiIsImtpZCI6ImdzYy1jYXJkcy0yMDI2LTA4In0",
      "signature": "04S8mN8tEUGMzZ0fA428Qq3gcZyy9kfSim48sLUhx3ksDkbo_d0d8PK48s3DgR-rV5y4qCHUcbJxLN1EwAQzFQ"
    }
  ]
}