{
  "copyright": "Copyright (c) NationFiles / Neawolf Media Group. This file contains sampled public export data for documentation purposes.",
  "source_url": "https://nationfiles.com/en/?export=json&chart=world_index_30d",
  "meta": {
    "record_type": "scientific_peer_review_sample",
    "title": "NationFiles JSON Export Sample - /en/",
    "abstract": "Machine-readable sample dataset prepared for peer review, reproducibility checks, and publication supplements. The sample mirrors the live JSON export structure while remaining intentionally lightweight.",
    "language": "en",
    "created_at_utc": "2026-04-27T12:44:52Z",
    "version": "1.0.0",
    "context_scope": "global",
    "source_domain": "nationfiles.com",
    "source_path": "/en/",
    "source_query": "export=json&chart=world_index_30d",
    "payload_type": "object",
    "top_level_count": 1,
    "sampling_strategy": "single-endpoint snapshot without pagination",
    "quality_note": "Sample is generated from a live export endpoint; values may change over time. Schema shape is the primary stable reference for review.",
    "methodology": {
      "collection_method": "automated HTTP GET from public endpoint",
      "pagination_applied": false,
      "truncation_policy": "sample_data truncated to first 10 list/items and bounded object depth",
      "normalization": "URL-derived filename with non-alphanumeric characters replaced by underscore"
    },
    "provenance": {
      "primary_source": "nationfiles.com public JSON export endpoint",
      "source_url": "https://nationfiles.com/en/?export=json&chart=world_index_30d",
      "generated_by": "download/dataset/generate_json_export_samples.py"
    },
    "license": {
      "rights_holder": "NationFiles / Neawolf Media Group",
      "usage_note": "For documentation, peer review, and publication supplements; verify reuse terms with publisher/rights holder.",
      "copyright_statement": "Copyright (c) NationFiles / Neawolf Media Group."
    },
    "citation": {
      "recommended": "NationFiles JSON Export Sample (accessed via source_url, generated_at_utc).",
      "citation_format": "Author/Organization. Title. Version. Source URL. Access date."
    },
    "scientific_alignment": {
      "principles": [
        "FAIR-supportive metadata",
        "reproducibility-oriented sampling",
        "transparent provenance"
      ],
      "standards": [
        "Dublin Core (conceptual alignment)",
        "DataCite citation elements (conceptual alignment)",
        "JSON data package style metadata (practical alignment)"
      ],
      "peer_review_focus": [
        "dataset context",
        "key semantics",
        "data provenance",
        "sampling constraints"
      ]
    },
    "integrity": {
      "checksum_sha256_sample_data": "not_computed",
      "verification_note": "Add cryptographic checksum in publication pipeline if required."
    }
  },
  "description": {
    "text": "This endpoint provides global export data used in high-level NationFiles dashboards. The sampled payload was fetched from path '/en/' with query 'export=json&chart=world_index_30d'. The payload type is object with 1 top-level entries. This sample is intentionally truncated (no pagination) to provide a stable, lightweight download artifact for documentation, QA checks, and integration previews. Representative key paths include: world_index_30d, world_index_30d.labels, world_index_30d.labels[], world_index_30d.values, world_index_30d.values[].",
    "keydata": {
      "world_index_30d": "Calculated score/index value."
    },
    "keyvalue": {
      "world_index_30d": "Calculated score/index value.",
      "world_index_30d.labels": "Array/list of related values.",
      "world_index_30d.labels[]": "Array/list of related values.",
      "world_index_30d.values": "Primary metric value.",
      "world_index_30d.values[]": "Primary metric value."
    }
  },
  "sample_data": {
    "world_index_30d": {
      "labels": [
        "2026-03-28",
        "2026-03-29",
        "2026-03-30",
        "2026-03-31",
        "2026-04-01",
        "2026-04-02",
        "2026-04-03",
        "2026-04-04",
        "2026-04-05",
        "2026-04-06"
      ],
      "values": [
        49.93,
        50.28,
        50.71,
        50.99,
        50.6,
        50.42,
        50.04,
        49.83,
        50.63,
        49.91
      ]
    }
  },
  "generated_at_utc": "2026-04-27T12:44:52Z"
}