{
  "version": "1.0.0",
  "published_date": "2026-10-21",
  "cutoff_date": "2026-10-21",
  "title": "Global Chamber activity evidence",
  "publication_type": "Descriptive activity measures; no composite score or chapter ranking",
  "source_record_accounting": {
    "rows_across_distinct_source_collections": 163453,
    "includes_overlapping_exports": true,
    "video_catalog_count_is_separate": true
  },
  "events": {
    "source_calendar_rows": 5966,
    "historical_calendar_rows": 5837,
    "gc_labelled_historical_calendar_rows": 2895,
    "future_calendar_rows": 84,
    "undated_calendar_rows": 45,
    "calendar_duplicate_source_rows": 28,
    "registration_role_rows": 62540,
    "attendee_role_rows_all_dates": 32074,
    "registrar_role_rows_all_dates": 30466,
    "historical_attendee_role_rows": 32017,
    "registration_duplicate_source_rows": 48,
    "repeat_historical_attendee_email_keys": 3081,
    "multiple_year_historical_attendee_email_keys": 1792,
    "observed_gc_quarters": 32,
    "quarters_in_observation_window": 32,
    "join_counts": {
      "missing_title_or_valid_event_date": 1,
      "unique_title_date_match": 61936,
      "ambiguous_title_date_match": 603
    },
    "events_with_reconciled_registration_counts": 2169,
    "attendee_reconciliation_mismatches": 0,
    "candidate_event_video_links": 1020,
    "candidate_link_methods": {
      "event_url_date_and_exact_normalized_title_slug": 715,
      "exact_normalized_video_title_unique_in_dated_event_export": 305
    }
  },
  "annual": [
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      "year": 2019,
      "through_date": "2019-12-31",
      "all_calendar_rows": 530,
      "gc_labelled_calendar_rows": 133,
      "collaborator_rows": 385,
      "holiday_rows": 12,
      "attendee_role_registration_rows": 1817,
      "gc_active_quarters": 4
    },
    {
      "year": 2020,
      "through_date": "2020-12-31",
      "all_calendar_rows": 947,
      "gc_labelled_calendar_rows": 247,
      "collaborator_rows": 685,
      "holiday_rows": 14,
      "attendee_role_registration_rows": 3704,
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    },
    {
      "year": 2021,
      "through_date": "2021-12-31",
      "all_calendar_rows": 868,
      "gc_labelled_calendar_rows": 416,
      "collaborator_rows": 422,
      "holiday_rows": 27,
      "attendee_role_registration_rows": 5496,
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      "year": 2022,
      "through_date": "2022-12-31",
      "all_calendar_rows": 747,
      "gc_labelled_calendar_rows": 362,
      "collaborator_rows": 341,
      "holiday_rows": 44,
      "attendee_role_registration_rows": 4304,
      "gc_active_quarters": 4
    },
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      "year": 2023,
      "through_date": "2023-12-31",
      "all_calendar_rows": 729,
      "gc_labelled_calendar_rows": 415,
      "collaborator_rows": 290,
      "holiday_rows": 24,
      "attendee_role_registration_rows": 4397,
      "gc_active_quarters": 4
    },
    {
      "year": 2024,
      "through_date": "2024-12-31",
      "all_calendar_rows": 593,
      "gc_labelled_calendar_rows": 376,
      "collaborator_rows": 193,
      "holiday_rows": 24,
      "attendee_role_registration_rows": 4143,
      "gc_active_quarters": 4
    },
    {
      "year": 2025,
      "through_date": "2025-12-31",
      "all_calendar_rows": 774,
      "gc_labelled_calendar_rows": 484,
      "collaborator_rows": 190,
      "holiday_rows": 96,
      "attendee_role_registration_rows": 5453,
      "gc_active_quarters": 4
    },
    {
      "year": 2026,
      "through_date": "2026-10-21",
      "all_calendar_rows": 649,
      "gc_labelled_calendar_rows": 462,
      "collaborator_rows": 155,
      "holiday_rows": 32,
      "attendee_role_registration_rows": 2703,
      "gc_active_quarters": 4
    }
  ],
  "quarterly_gc_labelled_calendar_rows": [
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      "quarter": "2019-Q1",
      "rows": 37
    },
    {
      "quarter": "2019-Q2",
      "rows": 31
    },
    {
      "quarter": "2019-Q3",
      "rows": 33
    },
    {
      "quarter": "2019-Q4",
      "rows": 32
    },
    {
      "quarter": "2020-Q1",
      "rows": 56
    },
    {
      "quarter": "2020-Q2",
      "rows": 64
    },
    {
      "quarter": "2020-Q3",
      "rows": 57
    },
    {
      "quarter": "2020-Q4",
      "rows": 70
    },
    {
      "quarter": "2021-Q1",
      "rows": 115
    },
    {
      "quarter": "2021-Q2",
      "rows": 110
    },
    {
      "quarter": "2021-Q3",
      "rows": 105
    },
    {
      "quarter": "2021-Q4",
      "rows": 86
    },
    {
      "quarter": "2022-Q1",
      "rows": 79
    },
    {
      "quarter": "2022-Q2",
      "rows": 96
    },
    {
      "quarter": "2022-Q3",
      "rows": 95
    },
    {
      "quarter": "2022-Q4",
      "rows": 92
    },
    {
      "quarter": "2023-Q1",
      "rows": 126
    },
    {
      "quarter": "2023-Q2",
      "rows": 118
    },
    {
      "quarter": "2023-Q3",
      "rows": 89
    },
    {
      "quarter": "2023-Q4",
      "rows": 82
    },
    {
      "quarter": "2024-Q1",
      "rows": 93
    },
    {
      "quarter": "2024-Q2",
      "rows": 99
    },
    {
      "quarter": "2024-Q3",
      "rows": 103
    },
    {
      "quarter": "2024-Q4",
      "rows": 81
    },
    {
      "quarter": "2025-Q1",
      "rows": 92
    },
    {
      "quarter": "2025-Q2",
      "rows": 125
    },
    {
      "quarter": "2025-Q3",
      "rows": 131
    },
    {
      "quarter": "2025-Q4",
      "rows": 136
    },
    {
      "quarter": "2026-Q1",
      "rows": 138
    },
    {
      "quarter": "2026-Q2",
      "rows": 146
    },
    {
      "quarter": "2026-Q3",
      "rows": 147
    },
    {
      "quarter": "2026-Q4",
      "rows": 31
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  ],
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      "chapter": "Austin",
      "directory_snapshot_rows": 25,
      "visible_directory_rows": 25,
      "historical_calendar_category_rows": 54
    },
    {
      "chapter": "Houston",
      "directory_snapshot_rows": 13,
      "visible_directory_rows": 13,
      "historical_calendar_category_rows": 33
    },
    {
      "chapter": "San Antonio",
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      "visible_directory_rows": 40,
      "historical_calendar_category_rows": 60
    }
  ],
  "audience": {
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    "distinct_email_keys": 59968,
    "canonical_account_source_rows": 10117,
    "subscriber_email_keys": 59052,
    "account_email_keys": 6893,
    "overlap_email_keys": 5977,
    "registration_role_bridge_rows": 46380
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  "operations": {
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    "web_page_index_records": 371,
    "campaign_records": 2166,
    "directory_event_video_review_paths": 4974,
    "campaign_records_with_valid_last_sent_timestamp": 2151,
    "campaign_records_without_valid_last_sent_timestamp": 15,
    "earliest_valid_campaign_last_sent": "2015-03-06 12:15:55",
    "latest_valid_campaign_last_sent": "2026-10-20 07:20:58"
  },
  "youtube": {
    "catalog_video_ids": 1541,
    "public_listing_video_ids": 1529,
    "historical_analytics_video_ids": 499,
    "api_result_video_ids": 916,
    "populated_descriptions_after_id_merge": 1417,
    "retrieved_empty_descriptions": 122,
    "api_description_statuses": {
      "retrieved": 822,
      "retrieved_empty": 94
    },
    "transcript_texts_retrieved": 0,
    "api_retrieved_at_min": "2026-10-21T16:43:08.711414+00:00",
    "api_retrieved_at_max": "2026-10-21T16:43:28.102003+00:00",
    "api_results_sha256": "cec82e4814dc9304f11b9cf5d17a7d153b9558cc112b30013b03e392ec9316d3",
    "channel_id": "UC1us8WFjM9wBkIDcQk_dnPA",
    "historical_reporting_period_label": "2014-11-07 through 2026-10-20 (source filename)",
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    "literal_topic_place_role_evidence_candidates": 7414
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  "landing_page_records": 308,
  "landing_page_metric_definitions": "Unconfirmed; metric headings and reporting period absent from supplied PDF",
  "definitions": {
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    "historical_window": "January 28, 2019 through October 21, 2026, inclusive. Source completeness is unverified. 2026 is a partial year.",
    "continuity": "Number of calendar quarters with at least one dated GC-labelled source listing divided by 32 observed quarters. Descriptive coverage of this archive only.",
    "attendee_role_rows": "Rows labelled attendee with event date on or before the cutoff. Registrations express recorded interest, not confirmed attendance. Raw duplicate rows retained.",
    "repeat_email_keys": "Distinct trimmed, case-folded nonblank email addresses appearing in at least two historical normalized event-title/date groups. Dots and plus suffixes preserved. Addresses are not verified unique people.",
    "calendar_duplicates": "Calendar and registration totals retain flagged source duplicates. Title/date groups are used for repeat-contact calculation, not asserted as upstream event IDs.",
    "youtube_merge": "Join by exact video ID. API metadata supersedes earlier description metadata for returned IDs; preserve the 1,541-ID catalog. Versions are not added together. Historical analytics and current public views are separate observations.",
    "candidate_links": "Title/date, URL and email matches identify research candidates. They do not verify attendance, employer affiliation, introductions, trade corridors or commercial outcomes.",
    "texas_snapshot": "Undated source directory rows and dated event source categories are separate inventories. Chapter label does not establish residence, paid membership, activity ownership or performance.",
    "privacy": "Only aggregate measures published. No contact identifiers, private registration details, account records, opt-out lists or hidden directory identities included."
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}