{
  "schemaVersion": "1.0.0",
  "kind": "nandarona.asset-provenance",
  "releaseId": "nidanpo@2.9.0",
  "rightsOwner": "nandarona",
  "review": {
    "status": "human-reviewed",
    "reviewedAt": "2026-07-30",
    "checks": [
      "identity",
      "family distinction",
      "state readability",
      "prohibited elements",
      "source path"
    ]
  },
  "referenceAsset": {
    "publicPath": "/characters/platform/input/nidanpo.png",
    "repositorySource": "assets/characters/input/design/nidanpo-expressions-v1.png"
  },
  "expressionAsset": {
    "repositorySource": "assets/characters/input/design/nidanpo-expressions-v1.png",
    "creationMethod": "OpenAI built-in ImageGen generation from the official Input Gestures design contract, followed by human visual review",
    "promptContract": {
      "useCase": "stylized-concept",
      "requiredStates": [
        "both-ready",
        "first-tap",
        "window-open",
        "second-tap",
        "paired",
        "window-reset"
      ],
      "invariants": [
        "左右にずれた大小二枚の丸膜と短い中央接合線",
        "二連膜と間隔窓。大小膜に一つずつある形の違う小眼。大小の膜が二拍で交互に弾み、接合時だけ一緒に着地する",
        "preserve the face-free playable growth mechanism, individual seed/leaf/root/fruit/branch signal system, stable gameplay pivot, and shape-based state redundancy",
        "states must differ through structural action rather than recoloring"
      ],
      "avoid": [
        "一回目だけで成立させない",
        "無制限に二回目を待たない",
        "二つ目として描かない",
        "extra characters",
        "watermark"
      ]
    }
  },
  "licenseScope": "Released artifacts are offered under CC BY 4.0; third-party rights and official endorsement are not granted."
}