{
  "service": "WHP Standing front door (Wheeler Hubbell Publishing)",
  "method": "POST",
  "input": {
    "subject": "string (required)",
    "claim": "string (required)",
    "provenance": {
      "source": "string",
      "authority": "string",
      "evidence": [
        "string | object"
      ]
    }
  },
  "payment": {
    "protocol": "x402-v2",
    "accepts": [
      {
        "amount": "1000000",
        "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "name": "USD Coin",
          "paymentFlow": "authorization",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1050eddd8282623b0c263ed6bdbd42370bbc28d3",
        "scheme": "exact",
        "resource": "https://standing-guard-service.lovable.app/v1/evaluate",
        "description": "WHP Standing front-door evaluation (ordinary x402 agents)",
        "mimeType": "application/json"
      }
    ],
    "authorization_header": "PAYMENT-SIGNATURE (or X-PAYMENT)"
  },
  "signer": {
    "alg": "Ed25519",
    "public_key_b64url": "D56_CIHZz-o8tXVISW-FYnajc6UMMl-9w8RfJqz5Fzw",
    "note": "Front-door key; not the sealed WHP Standing Mark issuer."
  },
  "sealed_mark": "https://standing-guard-service.lovable.app/.well-known/whp-standing.json"
}