{
  "schemaVersion": "1.0.0",
  "kind": "nandarona.asset-provenance",
  "releaseId": "setsumon@2.3.0",
  "rightsOwner": "nandarona",
  "review": {
    "status": "human-reviewed",
    "reviewedAt": "2026-07-30",
    "checks": [
      "identity",
      "family distinction",
      "state readability",
      "prohibited elements",
      "source path"
    ]
  },
  "referenceAsset": {
    "publicPath": "/characters/platform/weather/setsumon.png",
    "repositorySource": "assets/characters/weather/design/setsumon-expressions-v1.png"
  },
  "expressionAsset": {
    "repositorySource": "assets/characters/weather/design/setsumon-expressions-v1.png",
    "creationMethod": "OpenAI built-in ImageGen generation from the official Weather Signs design contract, followed by human visual review",
    "promptContract": {
      "useCase": "stylized-concept",
      "requiredStates": [
        "fresh",
        "second-mark",
        "trail",
        "covered",
        "melt",
        "gone"
      ],
      "invariants": [
        "低い雪面に斜めの足跡孔が三つ続く帯",
        "融けて薄れるトラック",
        "preserve the face-free field phenomenon, individual signal system, environmental silhouette, and shape-based state redundancy",
        "states must differ through structural action rather than recoloring"
      ],
      "avoid": [
        "永久保存の印にしない",
        "既存キャラの足型をそのまま使わない",
        "目や顔を付けない",
        "extra characters",
        "watermark"
      ]
    }
  },
  "licenseScope": "Released artifacts are offered under CC BY 4.0; third-party rights and official endorsement are not granted."
}