{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://lydiahub.online/evidence-schema.json",
  "title": "ResetPulse evidence receipt",
  "description": "Public, source-private integrity receipt for one Codex reset signal.",
  "type": "object",
  "required": ["schema", "receipt", "record", "evidenceBoundary", "receiptHistory"],
  "properties": {
    "schema": { "const": "resetpulse.evidence.v1" },
    "receipt": { "type": "string", "pattern": "^sha256:[0-9a-f]{64}$" },
    "record": {
      "type": "object",
      "required": ["eventId", "publishedAt", "firstObservedAt", "confirmedAt", "status", "confidence", "detectedSeconds", "title", "summary", "claimScope", "claimScopeNote", "eventType", "eventTypeNote", "timingQuality"],
      "properties": {
        "eventId": { "type": "string" },
        "publishedAt": { "type": "string", "format": "date-time" },
        "firstObservedAt": { "type": ["string", "null"], "format": "date-time" },
        "confirmedAt": { "type": ["string", "null"], "format": "date-time" },
        "status": { "enum": ["confirmed", "signal"] },
        "confidence": { "type": "number", "minimum": 0, "maximum": 100 },
        "detectedSeconds": { "type": "number", "minimum": 0 },
        "title": { "type": "string" },
        "summary": { "type": "string" },
        "claimScope": { "enum": ["broad-public", "plan-specific", "unknown"] },
        "claimScopeNote": { "type": "string" },
        "eventType": { "enum": ["full-refresh", "banked-credit", "announcement", "unknown"] },
        "eventTypeNote": { "type": "string" },
        "timingQuality": { "enum": ["measured", "historical", "migration-backfill", "external", "unknown"] }
      },
      "additionalProperties": false
    },
    "evidenceBoundary": { "type": "object" }
    ,"receiptHistory": {
      "type": "object",
      "required": ["firstObserved", "integrity", "currentRecord", "note"],
      "properties": {
        "firstObserved": {
          "anyOf": [
            { "$ref": "#/$defs/historicalReceipt" },
            { "type": "null" }
          ]
        },
        "integrity": { "enum": ["valid", "invalid", "not-available"] },
        "currentRecord": { "enum": ["matches-current", "diverges-from-current", "not-available"] },
        "note": { "type": "string" }
      },
      "additionalProperties": false
    }
  },
  "$defs": {
    "historicalReceipt": {
      "type": "object",
      "required": ["schema", "version", "kind", "recordedAt", "value", "record"],
      "properties": {
        "schema": { "const": "resetpulse.evidence-history.v1" },
        "version": { "const": 1 },
        "kind": { "enum": ["first-observed", "backfill"] },
        "recordedAt": { "type": "string", "format": "date-time" },
        "value": { "type": "string", "pattern": "^sha256:[0-9a-f]{64}$" },
        "record": { "$ref": "#/properties/record" }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}