{
  "$schema": "https://json-structure.org/draft-01/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/civitai/main/json-structure/civitai-model-structure.json",
  "title": "Civitai Model Structure",
  "description": "Structural mapping of the Civitai Model resource — entity relationships, identifiers, and primary lookup paths.",
  "entity": "civitai:Model",
  "primaryKey": "id",
  "naturalKeys": ["name", "creator.username"],
  "relationships": [
    {
      "name": "modelVersions",
      "type": "hasMany",
      "target": "civitai:ModelVersion",
      "lookup": "/api/v1/model-versions/{id}"
    },
    {
      "name": "creator",
      "type": "belongsTo",
      "target": "civitai:Creator",
      "lookup": "/api/v1/creators?query={username}"
    },
    {
      "name": "tags",
      "type": "hasMany",
      "target": "civitai:Tag",
      "lookup": "/api/v1/tags?query={name}"
    },
    {
      "name": "images",
      "type": "hasMany",
      "target": "civitai:Image",
      "lookup": "/api/v1/images?modelId={id}"
    }
  ],
  "identifiers": {
    "id": "Civitai numeric model ID",
    "air": "AI Resource Identifier (urn:air:...) for a specific ModelVersion",
    "hashes": "Content-addressable file identifiers (AutoV1, AutoV2, SHA256, CRC32, Blake3)"
  },
  "lookupPaths": [
    "/api/v1/models/{id}",
    "/api/v1/model-versions/{id}",
    "/api/v1/model-versions/by-hash/{hash}"
  ]
}