{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://thehiveryiq.com/.well-known/schemas/usap-perimeter-v2.json",
  "title": "Perimeter Bond v1",
  "description": "Checks one supplied attempt against a declared perimeter. It does not prove full egress enforcement.",
  "type": "object",
  "required": [
    "receipt_id",
    "payload_sha256",
    "sig_b64u",
    "key_id",
    "algorithm",
    "ts",
    "signed_body"
  ],
  "additionalProperties": false,
  "properties": {
    "receipt_id": {
      "type": "string",
      "pattern": "^r_usap\\.perimeter_[0-9]{10,}_[0-9a-f]{12}$"
    },
    "payload_sha256": {
      "type": "string",
      "pattern": "^[0-9a-f]{64}$"
    },
    "sig_b64u": {
      "type": "string",
      "pattern": "^[A-Za-z0-9_-]{86}$"
    },
    "key_id": {
      "type": "string",
      "pattern": "^did:(hive|web|key):[A-Za-z0-9._:%-]+$"
    },
    "algorithm": {
      "type": "string",
      "const": "Ed25519"
    },
    "ts": {
      "type": "integer",
      "minimum": 1000000000
    },
    "signed_body": {
      "type": "object",
      "required": [
        "receipt_type",
        "schema",
        "perimeter_id",
        "evidence_digest_sha256",
        "recorded_at",
        "verdict",
        "boundary",
        "perimeter_policy_sha256",
        "policy_committed_at",
        "attempt_id",
        "attempt_observed_at",
        "declared_destinations",
        "declared_protocols",
        "declared_ports",
        "declared_directions",
        "observed_destination",
        "observed_protocol",
        "observed_port",
        "observed_direction",
        "destination_relation",
        "protocol_relation",
        "port_relation",
        "direction_relation",
        "elements",
        "outcome"
      ],
      "additionalProperties": false,
      "properties": {
        "receipt_type": {
          "type": "string",
          "const": "usap.perimeter"
        },
        "schema": {
          "type": "string",
          "const": "r2.0.0"
        },
        "perimeter_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 256,
          "pattern": "^[A-Za-z0-9._:-]{1,256}$"
        },
        "evidence_digest_sha256": {
          "type": "string",
          "pattern": "^[0-9a-f]{64}$",
          "description": "SHA-256 of the caller-held evidence bundle this receipt attests was recorded. The service never receives or inspects the underlying evidence, only its digest."
        },
        "recorded_at": {
          "type": "string",
          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}([.][0-9]{1,9})?Z$"
        },
        "verdict": {
          "type": "object",
          "description": "Service-computed honesty boundary fields. Never caller overridable; recomputed and checked at verify time.",
          "required": [
            "outcome"
          ],
          "additionalProperties": false,
          "properties": {
            "outcome": {
              "type": "string",
              "enum": [
                "within_declared_perimeter",
                "outside_declared_perimeter",
                "indeterminate"
              ]
            }
          }
        },
        "boundary": {
          "type": "string",
          "const": "Checks one supplied attempt against a declared perimeter. It does not prove full egress enforcement."
        },
        "perimeter_policy_sha256": {
          "type": "string",
          "pattern": "^[0-9a-f]{64}$"
        },
        "policy_committed_at": {
          "type": "string",
          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}([.][0-9]{1,9})?Z$"
        },
        "attempt_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 256
        },
        "attempt_observed_at": {
          "type": "string",
          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}([.][0-9]{1,9})?Z$"
        },
        "declared_destinations": {
          "type": "array",
          "items": {
            "type": "string",
            "minLength": 1,
            "maxLength": 256
          },
          "minItems": 1,
          "maxItems": 128
        },
        "declared_protocols": {
          "type": "array",
          "items": {
            "type": "string",
            "minLength": 1,
            "maxLength": 128,
            "pattern": "^[A-Za-z0-9._:/]+$"
          },
          "minItems": 1,
          "maxItems": 128
        },
        "declared_ports": {
          "type": "array",
          "items": {
            "type": "integer",
            "minimum": 0,
            "maximum": 65535
          },
          "minItems": 1,
          "maxItems": 128
        },
        "declared_directions": {
          "type": "array",
          "items": {
            "type": "string",
            "enum": [
              "inbound",
              "outbound"
            ]
          },
          "minItems": 1,
          "maxItems": 2
        },
        "observed_destination": {
          "type": "string",
          "minLength": 1,
          "maxLength": 256
        },
        "observed_protocol": {
          "type": "string",
          "minLength": 1,
          "maxLength": 128,
          "pattern": "^[A-Za-z0-9._:/]+$"
        },
        "observed_port": {
          "type": "integer",
          "minimum": 0,
          "maximum": 65535
        },
        "observed_direction": {
          "type": "string",
          "enum": [
            "inbound",
            "outbound"
          ]
        },
        "destination_relation": {
          "type": "string",
          "enum": [
            "within_policy",
            "outside_policy"
          ]
        },
        "protocol_relation": {
          "type": "string",
          "enum": [
            "within_policy",
            "outside_policy"
          ]
        },
        "port_relation": {
          "type": "string",
          "enum": [
            "within_policy",
            "outside_policy"
          ]
        },
        "direction_relation": {
          "type": "string",
          "enum": [
            "within_policy",
            "outside_policy"
          ]
        },
        "elements": {
          "type": "array",
          "items": {
            "type": "string",
            "enum": [
              "destination_outside_perimeter",
              "protocol_outside_perimeter",
              "port_outside_perimeter",
              "direction_outside_perimeter"
            ]
          },
          "minItems": 0,
          "maxItems": 4
        },
        "outcome": {
          "type": "string",
          "enum": [
            "within_declared_perimeter",
            "outside_declared_perimeter",
            "indeterminate"
          ]
        }
      }
    }
  }
}