{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "gno://schemas/context-capsule-verification@1.0",
  "title": "GNO Context Capsule Verification Receipt",
  "description": "Successful, non-mutating verification of saved Capsule content and ranking state. Stale or missing evidence remains a completed receipt.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schemaVersion",
    "coordinateSpace",
    "capsuleId",
    "operationStatus",
    "contentStatus",
    "contentCode",
    "rankingStatus",
    "rankingCode",
    "currentFingerprints",
    "fingerprintStatus",
    "fingerprintReasons",
    "indexSnapshot",
    "evidence"
  ],
  "properties": {
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      "enum": ["1.0", "1.1", "1.2"]
    },
    "coordinateSpace": { "const": "canonical_mirror" },
    "capsuleId": { "$ref": "#/definitions/sha256" },
    "operationStatus": { "const": "completed" },
    "contentStatus": {
      "enum": ["unchanged", "stale", "missing"]
    },
    "contentCode": {
      "enum": ["verified_unchanged", "content_stale", "content_missing"]
    },
    "rankingStatus": {
      "enum": ["unchanged", "reranked", "unavailable"]
    },
    "rankingCode": {
      "enum": ["ranking_unchanged", "ranking_changed", "ranking_unavailable"]
    },
    "currentFingerprints": { "$ref": "#/definitions/currentFingerprints" },
    "fingerprintStatus": {
      "enum": ["unchanged", "drifted"]
    },
    "fingerprintReasons": {
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          "type": "array",
          "minItems": 0,
          "maxItems": 0,
          "items": false
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    "indexSnapshot": { "$ref": "#/definitions/indexSnapshot" },
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      "type": "array",
      "minItems": 1,
      "items": { "$ref": "#/definitions/evidenceVerification" }
    }
  },
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      "then": {
        "properties": { "contentCode": { "const": "verified_unchanged" } }
      }
    },
    {
      "if": { "properties": { "contentStatus": { "const": "stale" } } },
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        }
      }
    },
    {
      "if": { "properties": { "contentStatus": { "const": "missing" } } },
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          "contentCode": { "const": "content_missing" },
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    },
    {
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    {
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    },
    {
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        }
      }
    },
    {
      "if": { "properties": { "fingerprintStatus": { "const": "unchanged" } } },
      "then": {
        "properties": {
          "fingerprintReasons": { "type": "array", "maxItems": 0 }
        }
      }
    },
    {
      "if": { "properties": { "fingerprintStatus": { "const": "drifted" } } },
      "then": {
        "properties": {
          "fingerprintReasons": { "type": "array", "minItems": 1 }
        }
      }
    }
  ],
  "definitions": {
    "sha256": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
    "nullableSha256": {
      "oneOf": [
        {
          "$ref": "#/definitions/sha256"
        },
        {
          "type": "null"
        }
      ]
    },
    "currentFingerprints": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "config",
        "retrieval",
        "embeddingModel",
        "rerankModel",
        "tokenizer",
        "index"
      ],
      "properties": {
        "config": { "$ref": "#/definitions/sha256" },
        "retrieval": { "$ref": "#/definitions/sha256" },
        "embeddingModel": { "$ref": "#/definitions/nullableSha256" },
        "rerankModel": { "$ref": "#/definitions/nullableSha256" },
        "tokenizer": { "$ref": "#/definitions/nullableSha256" },
        "index": { "$ref": "#/definitions/sha256" }
      }
    },
    "fingerprintDriftReason": {
      "enum": [
        "config_changed",
        "retrieval_changed",
        "embedding_model_changed",
        "rerank_model_changed",
        "tokenizer_changed",
        "index_changed"
      ]
    },
    "gnoUri": {
      "type": "string",
      "maxLength": 2048,
      "pattern": "^gno://[a-z0-9][a-z0-9_-]{0,63}/(?!.*%2F)(?:[A-Za-z0-9_.!~*'()/\\-]|%[0-9A-F]{2})+(?:\\?index=(?:[A-Za-z0-9_.!~*'()\\-]|%[0-9A-F]{2})+)?$"
    },
    "indexSnapshot": {
      "type": "object",
      "additionalProperties": false,
      "required": ["before", "after", "stable"],
      "properties": {
        "before": { "$ref": "#/definitions/sha256" },
        "after": { "$ref": "#/definitions/sha256" },
        "stable": { "const": true }
      }
    },
    "evidenceVerification": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "evidenceId",
        "uri",
        "contentStatus",
        "contentCode",
        "rankingStatus",
        "rankingCode",
        "currentSourceHash",
        "currentMirrorHash",
        "currentPassageHash",
        "currentRetrievalRank"
      ],
      "properties": {
        "evidenceId": { "$ref": "#/definitions/sha256" },
        "uri": { "$ref": "#/definitions/gnoUri" },
        "contentStatus": {
          "enum": ["unchanged", "stale", "missing"]
        },
        "contentCode": {
          "enum": [
            "verified_unchanged",
            "source_stale",
            "mirror_stale",
            "mirror_corrupt",
            "passage_stale",
            "chunk_missing",
            "chunk_corrupt",
            "source_missing",
            "mirror_missing"
          ]
        },
        "rankingStatus": {
          "enum": ["unchanged", "reranked", "unavailable"]
        },
        "rankingCode": {
          "enum": [
            "ranking_unchanged",
            "ranking_changed",
            "ranking_unavailable"
          ]
        },
        "currentSourceHash": { "$ref": "#/definitions/nullableSha256" },
        "currentMirrorHash": { "$ref": "#/definitions/nullableSha256" },
        "currentPassageHash": { "$ref": "#/definitions/nullableSha256" },
        "currentRetrievalRank": {
          "type": ["integer", "null"],
          "minimum": 1
        }
      },
      "allOf": [
        {
          "if": { "properties": { "contentStatus": { "const": "unchanged" } } },
          "then": {
            "properties": {
              "contentCode": { "const": "verified_unchanged" },
              "currentSourceHash": { "$ref": "#/definitions/sha256" },
              "currentMirrorHash": { "$ref": "#/definitions/sha256" },
              "currentPassageHash": { "$ref": "#/definitions/sha256" }
            }
          }
        },
        {
          "if": { "properties": { "contentStatus": { "const": "stale" } } },
          "then": {
            "properties": {
              "contentCode": {
                "enum": [
                  "source_stale",
                  "mirror_stale",
                  "mirror_corrupt",
                  "passage_stale",
                  "chunk_missing",
                  "chunk_corrupt"
                ]
              },
              "currentSourceHash": { "$ref": "#/definitions/sha256" },
              "currentMirrorHash": { "$ref": "#/definitions/sha256" },
              "currentPassageHash": { "$ref": "#/definitions/sha256" },
              "rankingStatus": { "const": "unavailable" },
              "rankingCode": { "const": "ranking_unavailable" },
              "currentRetrievalRank": { "type": "null" }
            }
          }
        },
        {
          "if": { "properties": { "contentStatus": { "const": "missing" } } },
          "then": {
            "properties": {
              "contentCode": {
                "enum": ["source_missing", "mirror_missing"]
              },
              "rankingStatus": { "const": "unavailable" },
              "rankingCode": { "const": "ranking_unavailable" },
              "currentRetrievalRank": { "type": "null" }
            }
          }
        },
        {
          "if": {
            "properties": { "contentCode": { "const": "source_missing" } }
          },
          "then": {
            "properties": {
              "contentStatus": { "const": "missing" },
              "currentSourceHash": { "type": "null" },
              "currentMirrorHash": { "type": "null" },
              "currentPassageHash": { "type": "null" }
            }
          }
        },
        {
          "if": {
            "properties": { "contentCode": { "const": "mirror_missing" } }
          },
          "then": {
            "properties": {
              "contentStatus": { "const": "missing" },
              "currentSourceHash": { "$ref": "#/definitions/sha256" },
              "currentMirrorHash": {
                "$ref": "#/definitions/nullableSha256"
              },
              "currentPassageHash": { "type": "null" }
            }
          }
        },
        {
          "if": { "properties": { "rankingStatus": { "const": "unchanged" } } },
          "then": {
            "properties": {
              "rankingCode": { "const": "ranking_unchanged" },
              "currentRetrievalRank": { "type": "integer", "minimum": 1 }
            }
          }
        },
        {
          "if": { "properties": { "rankingStatus": { "const": "reranked" } } },
          "then": {
            "properties": {
              "rankingCode": { "const": "ranking_changed" },
              "currentRetrievalRank": { "type": "integer", "minimum": 1 }
            }
          }
        },
        {
          "if": {
            "properties": { "rankingStatus": { "const": "unavailable" } }
          },
          "then": {
            "properties": {
              "rankingCode": { "const": "ranking_unavailable" },
              "currentRetrievalRank": { "type": "null" }
            }
          }
        }
      ]
    }
  }
}