{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://odexa.io/schemas/1.2.0-draft.2/reference/offer.schema.json",
  "title": "Odexa reference offer",
  "$comment": "Structural contract only; strict lexical JSON, signatures, origin/scope bindings and semantic checks are mandatory.",
  "$ref": "#/$defs/offer",
  "$defs": {
    "authority": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "origin": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "service_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "revision": {
          "type": "integer",
          "minimum": 1,
          "maximum": 9007199254740991
        },
        "url": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "digest": {
          "type": "string",
          "pattern": "^sha256:[0-9a-f]{64}$"
        }
      },
      "required": [
        "origin",
        "service_id",
        "revision",
        "url",
        "digest"
      ]
    },
    "asset_ref": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "asset_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "version_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "manifest_digest": {
          "type": "string",
          "pattern": "^sha256:[0-9a-f]{64}$"
        },
        "representation_id": {
          "type": "string",
          "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
        }
      },
      "required": [
        "asset_id",
        "version_id",
        "manifest_digest",
        "representation_id"
      ]
    },
    "representation_metadata": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "media_type": {
          "type": "string",
          "pattern": "^[a-z0-9][a-z0-9!#$&^_.+-]*/[a-z0-9][a-z0-9!#$&^_.+-]*$"
        },
        "media_parameters": {
          "type": "object",
          "maxProperties": 16,
          "propertyNames": {
            "pattern": "^[a-z0-9][a-z0-9!#$&^_.+-]*$"
          },
          "additionalProperties": {
            "type": "string",
            "minLength": 1,
            "maxLength": 256
          }
        },
        "languages": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z]{1,8}(?:-[a-z0-9]{1,8})*$"
          },
          "minItems": 0,
          "maxItems": 16,
          "uniqueItems": true
        }
      },
      "required": [
        "media_type",
        "media_parameters",
        "languages"
      ]
    },
    "representation": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "media_type": {
          "type": "string",
          "pattern": "^[a-z0-9][a-z0-9!#$&^_.+-]*/[a-z0-9][a-z0-9!#$&^_.+-]*$"
        },
        "media_parameters": {
          "type": "object",
          "maxProperties": 16,
          "propertyNames": {
            "pattern": "^[a-z0-9][a-z0-9!#$&^_.+-]*$"
          },
          "additionalProperties": {
            "type": "string",
            "minLength": 1,
            "maxLength": 256
          }
        },
        "languages": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z]{1,8}(?:-[a-z0-9]{1,8})*$"
          },
          "minItems": 0,
          "maxItems": 16,
          "uniqueItems": true
        },
        "representation_id": {
          "type": "string",
          "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
        },
        "decoded_length": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        },
        "decoded_digest": {
          "type": "string",
          "pattern": "^sha256:[0-9a-f]{64}$"
        }
      },
      "required": [
        "media_type",
        "media_parameters",
        "languages",
        "representation_id",
        "decoded_length",
        "decoded_digest"
      ]
    },
    "manifest": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
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          "const": "1.2.0-draft.2"
        },
        "origin": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "asset_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "version_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "published_at": {
          "type": "string",
          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
        },
        "authority": {
          "$ref": "#/$defs/authority"
        },
        "representations": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/representation"
          },
          "minItems": 1,
          "maxItems": 64
        }
      },
      "required": [
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        "origin",
        "asset_id",
        "version_id",
        "published_at",
        "authority",
        "representations"
      ]
    },
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      "type": "object",
      "additionalProperties": false,
      "properties": {
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          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        },
        "last": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
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          "type": "integer",
          "minimum": 1,
          "maximum": 9007199254740991
        }
      },
      "required": [
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        "complete_length"
      ]
    },
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      "type": "object",
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "HEAD"
          ]
        },
        "status": {
          "anyOf": [
            {
              "type": "integer",
              "minimum": 100,
              "maximum": 599
            },
            {
              "type": "null"
            }
          ]
        },
        "kind": {
          "enum": [
            "full",
            "partial",
            "head",
            "no_content",
            "not_modified",
            "redirect",
            "error",
            "unsupported_partial",
            "unsupported_status",
            "unknown",
            "protocol_error"
          ]
        },
        "delivery_id": {
          "type": "string",
          "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
        },
        "hop_id": {
          "type": "string",
          "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
        },
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          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "hop_role": {
          "enum": [
            "end_client",
            "upstream"
          ]
        },
        "boundary_id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
          "pattern": "^https://[^?#]+$"
        },
        "cache_status": {
          "enum": [
            "bypass",
            "miss",
            "hit",
            "revalidated",
            "stale",
            "unknown"
          ]
        },
        "content_codings": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^(?!identity$)[a-z0-9][a-z0-9-]{0,31}$"
          },
          "minItems": 0,
          "maxItems": 8
        },
        "content_bytes": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        },
        "content_digest": {
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            {
              "type": "string",
              "pattern": "^sha256:[0-9a-f]{64}$"
            },
            {
              "type": "null"
            }
          ]
        },
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            {
              "type": "integer",
              "minimum": 0,
              "maximum": 9007199254740991
            },
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              "type": "null"
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          ]
        },
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            {
              "type": "string",
              "pattern": "^sha256:[0-9a-f]{64}$"
            },
            {
              "type": "null"
            }
          ]
        },
        "range": {
          "anyOf": [
            {
              "$ref": "#/$defs/range"
            },
            {
              "type": "null"
            }
          ]
        },
        "representation_metadata": {
          "anyOf": [
            {
              "$ref": "#/$defs/representation_metadata"
            },
            {
              "type": "null"
            }
          ]
        }
      },
      "required": [
        "method",
        "status",
        "kind",
        "delivery_id",
        "hop_id",
        "ingress_id",
        "hop_role",
        "boundary_id",
        "cache_status",
        "content_codings",
        "content_bytes",
        "content_digest",
        "decoded_bytes",
        "decoded_digest",
        "range",
        "representation_metadata"
      ]
    },
    "operation": {
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      "additionalProperties": false,
      "properties": {
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          "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
        },
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          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
        },
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              "type": "string",
              "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
            },
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              "type": "null"
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          ]
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          ]
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      },
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          "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
        },
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          "pattern": "^sha256:[0-9a-f]{64}$"
        }
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      "additionalProperties": false,
      "properties": {
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          "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
        },
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          "enum": [
            "use.reported",
            "access.authorized",
            "access.denied",
            "delivery.completed",
            "delivery.failed",
            "response.completed",
            "response.failed",
            "policy.observed",
            "offer.issued",
            "acceptance.recorded",
            "agreement.active",
            "agreement.revoked"
          ]
        },
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          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$"
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          "pattern": "^https://[^?#]+$"
        },
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            "origin_observed",
            "service_recorded"
          ]
        },
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          "maxLength": 4096,
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        },
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        },
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              "type": "string",
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              "maxLength": 4096,
              "pattern": "^https://[^?#]+$"
            },
            {
              "type": "null"
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          ]
        },
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              "maximum": 9007199254740991
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              "redistribute"
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          },
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        },
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          },
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        },
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              "type": "string",
              "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
            },
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              "type": "null"
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          ]
        },
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              "$ref": "#/$defs/asset_ref"
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          ]
        },
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            {
              "$ref": "#/$defs/operation"
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          ]
        },
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            {
              "$ref": "#/$defs/http"
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              "type": "null"
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        },
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              "type": "string",
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              "type": "null"
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          ]
        },
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      },
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      ],
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                "const": "client_reported"
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          },
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                "enum": [
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        },
        {
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          },
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            }
          }
        },
        {
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                "const": "service_recorded"
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          },
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              "event_type": {
                "enum": [
                  "policy.observed",
                  "offer.issued",
                  "acceptance.recorded",
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          }
        },
        {
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          },
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                "$ref": "#/$defs/http"
              }
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          },
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              "http": {
                "type": "null"
              }
            }
          }
        },
        {
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        },
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            "origin_key_verified",
            "service_key_verified"
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        },
        "supported_obligations": {
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              "report_usage"
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      },
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    },
    "offer_request": {
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          "type": "string",
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          "maxLength": 4096,
          "pattern": "^https://[^#]+$"
        },
        "request": {
          "$ref": "#/$defs/request"
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        "access_seconds": {
          "type": "integer",
          "minimum": 1,
          "maximum": 31536000
        },
        "use_seconds": {
          "type": "integer",
          "minimum": 1,
          "maximum": 31536000
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      },
      "required": [
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        "access_seconds",
        "use_seconds"
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    },
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      "oneOf": [
        {
          "type": "object",
          "additionalProperties": false,
          "properties": {
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              "const": "attribution"
            },
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              "type": "string",
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              "maxLength": 256
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              "type": "string",
              "minLength": 1,
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          "type": "object",
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              "const": "retention"
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              "type": "integer",
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              "maximum": 9007199254740991
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          },
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        },
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          "type": "object",
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              "const": "report_usage"
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              "maxLength": 4096,
              "pattern": "^https://[^#]+$"
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              "type": "integer",
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          },
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      "type": "object",
      "additionalProperties": false,
      "properties": {
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          "enum": [
            "policy",
            "human_terms",
            "origin_authority"
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        },
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          "type": "string",
          "minLength": 1,
          "maxLength": 4096,
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      "properties": {
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            "$ref": "#/$defs/obligation"
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          "maximum": 31536000
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              "const": false
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          },
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}