{
  "$defs": {
    "AlternateLocation": {
      "additionalProperties": false,
      "description": "A complete alternate path mapping, not a new artifact authority.",
      "properties": {
        "paths": {
          "items": {
            "type": "string"
          },
          "maxItems": 100000,
          "minItems": 1,
          "title": "Paths",
          "type": "array"
        },
        "root": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Root"
        }
      },
      "required": [
        "paths"
      ],
      "title": "AlternateLocation",
      "type": "object"
    },
    "Artifact": {
      "additionalProperties": false,
      "description": "Pinned origin and selected artifact; locations are not provenance grants.",
      "properties": {
        "bundle": {
          "anyOf": [
            {
              "$ref": "#/$defs/ArtifactBundle"
            },
            {
              "type": "null"
            }
          ],
          "default": null
        },
        "format": {
          "maxLength": 100,
          "minLength": 1,
          "title": "Format",
          "type": "string"
        },
        "quantization": {
          "default": "",
          "maxLength": 200,
          "title": "Quantization",
          "type": "string"
        },
        "repository": {
          "maxLength": 512,
          "pattern": "^[A-Za-z0-9][A-Za-z0-9._-]*/[A-Za-z0-9][A-Za-z0-9._+@-]*$",
          "title": "Repository",
          "type": "string"
        },
        "revision": {
          "pattern": "^[0-9a-f]{40}$",
          "title": "Revision",
          "type": "string"
        },
        "selected_file": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Selected File"
        }
      },
      "required": [
        "repository",
        "revision",
        "format"
      ],
      "title": "Artifact",
      "type": "object"
    },
    "ArtifactBundle": {
      "additionalProperties": false,
      "description": "Existing content-derived selected-file identity with optional hash evidence.",
      "properties": {
        "alternate_locations": {
          "default": [],
          "items": {
            "$ref": "#/$defs/AlternateLocation"
          },
          "maxItems": 64,
          "title": "Alternate Locations",
          "type": "array"
        },
        "bundle_id": {
          "pattern": "^bundle_[a-z2-7]{52}$",
          "title": "Bundle Id",
          "type": "string"
        },
        "download_size": {
          "exclusiveMinimum": 0,
          "maximum": 9007199254740991,
          "title": "Download Size",
          "type": "integer"
        },
        "files": {
          "items": {
            "$ref": "#/$defs/ArtifactFile"
          },
          "maxItems": 100000,
          "minItems": 1,
          "title": "Files",
          "type": "array"
        },
        "root": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Root"
        }
      },
      "required": [
        "bundle_id",
        "files",
        "download_size"
      ],
      "title": "ArtifactBundle",
      "type": "object"
    },
    "ArtifactFile": {
      "additionalProperties": false,
      "description": "One declared repository file; a missing hash is an explicit evidence gap.",
      "properties": {
        "object_id": {
          "anyOf": [
            {
              "pattern": "^(sha256:[0-9a-f]{64}|git-sha1:[0-9a-f]{40})$",
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "title": "Object Id"
        },
        "path": {
          "title": "Path",
          "type": "string"
        },
        "size_bytes": {
          "maximum": 9007199254740991,
          "minimum": 0,
          "title": "Size Bytes",
          "type": "integer"
        }
      },
      "required": [
        "path",
        "size_bytes"
      ],
      "title": "ArtifactFile",
      "type": "object"
    },
    "JsonValue": {}
  },
  "additionalProperties": false,
  "description": "Existing v1/v2 envelope, usable without enrolling a registry publisher.",
  "properties": {
    "alias": {
      "maxLength": 512,
      "pattern": "^[A-Za-z0-9][A-Za-z0-9._-]*/[A-Za-z0-9][A-Za-z0-9._+@-]*$",
      "title": "Alias",
      "type": "string"
    },
    "artifact": {
      "$ref": "#/$defs/Artifact"
    },
    "card": {
      "additionalProperties": {
        "$ref": "#/$defs/JsonValue"
      },
      "title": "Card",
      "type": "object"
    },
    "card_id": {
      "pattern": "^card_[a-z2-7]{52}$",
      "title": "Card Id",
      "type": "string"
    },
    "model_ref": {
      "maxLength": 512,
      "pattern": "^[A-Za-z0-9][A-Za-z0-9._-]*/[A-Za-z0-9][A-Za-z0-9._+@-]*$",
      "title": "Model Ref",
      "type": "string"
    },
    "schema_version": {
      "enum": [
        1,
        2
      ],
      "title": "Schema Version",
      "type": "integer"
    }
  },
  "required": [
    "schema_version",
    "card_id",
    "alias",
    "model_ref",
    "artifact",
    "card"
  ],
  "title": "ModelCardEnvelope",
  "type": "object"
}