{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://palimpsest.info/protocol/china-observation-v1.schema.json",
  "title": "Palimpsest China OSINT observation richness v1",
  "description": "Additive fields carried on public China OSINT observations. Absence is null or empty, never a fabricated live reading.",
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    "mirror_urls": {
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      "items": {"type": "string", "pattern": "^https://"}
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    "content_sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
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          "note": {"type": "string", "maxLength": 400}
        }
      }
    },
    "gazetteer_hits": {
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      "items": {
        "type": "object",
        "required": ["zh"],
        "properties": {
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        }
      }
    },
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      "type": "object",
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        "wayback_snapshot": {"type": ["string", "null"]},
        "wayback_raw": {"type": ["string", "null"]},
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        "timestamp_bracket": {
          "type": "object",
          "properties": {
            "last_live": {"type": ["string", "null"]},
            "post_event": {"type": ["string", "null"]}
          }
        }
      }
    },
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    "common_crawl": {"type": ["object", "null"]},
    "provenance": {"type": "object"}
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}