HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-001dataset-derived countNONE_DECLARED
The exact supplied CSV contains 2,058 event-level rows; this is a source-bounded count, not 2,058 independently verified devices or tests.
DATASET_COUNT_REPRODUCED_FROM_EXACT_SOURCE · OPEN_UNASSIGNED · 1 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-002dataset-derived countOPEN_SOURCE_INTERNAL_CONFLICT
The exact supplied CSV contains 715 Soviet Union rows.
DATASET_COUNT_REPRODUCED_FROM_EXACT_SOURCE · OPEN_UNASSIGNED · 1 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-003source-authored count claimOPEN_SOURCE_INTERNAL_CONFLICT
The companion report states 714 Soviet rows; the exact supplied CSV contains 715.
SOURCE_CLAIM_UNVERIFIED · OPEN_UNASSIGNED · 1 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-004source-internal discrepancyOPEN_SOURCE_INTERNAL_CONFLICT
The companion report says a disputed Vela row was added; the exact supplied CSV contains no 1979-09-22 row.
OPEN_SOURCE_INTERNAL_CONFLICT · OPEN_UNASSIGNED · 2 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-005source-authored aggregateSCOPE_RECONCILIATION_REQUIRED
The supplied history report states 2,121 official tests and approximately 2,476 devices under its own counting conventions.
SOURCE_CLAIM_UNVERIFIED · OPEN_UNASSIGNED · 1 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-006source-authored aggregateSCOPE_RECONCILIATION_REQUIRED
The supplied sources use different Soviet totals and counting units: 727 tests / 981 devices in the history report, 715 exact CSV event rows, and 714 stated companion-report rows.
SOURCE_CLAIM_UNVERIFIED · OPEN_UNASSIGNED · 3 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-007cross-source scope comparisonSCOPE_RECONCILIATION_REQUIRED
The supplied history report and exact CSV both show 1,032 U.S. test/event rows, while the report separately states 1,132 devices.
PARTIAL_NUMERIC_ALIGNMENT_SCOPE_UNRESOLVED · OPEN_UNASSIGNED · 2 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-008scope definitionNONE_DECLARED
The supplied dataset treats Hiroshima and Nagasaki as wartime detonations, separate from nuclear tests.
SOURCE_SCOPE_DECLARED_REVIEW_PENDING · OPEN_UNASSIGNED · 2 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-009dataset-derived countNONE_DECLARED
Within the exact supplied CSV, 1962 has 178 event rows and is the file’s peak year.
DATASET_COUNT_REPRODUCED_FROM_EXACT_SOURCE · OPEN_UNASSIGNED · 1 source origin(s)HISTORICAL DATASET CLAIM — SOURCE REVIEW REQUIRED
NCR-010counting-method claimNONE_DECLARED
The supplied methodology uses one event row for grouped same-day detonations and keeps device counts separate.
SOURCE_METHOD_CLAIM_UNVERIFIED · OPEN_UNASSIGNED · 1 source origin(s)CURRENT PRIMARY-SOURCE STATUS — REVIEWED THROUGH 2026-07-25
NCR-011current institutional state claimNONE_DECLARED_WITHIN_CURRENT_OFFICIAL_SCOPE
Current CTBTO material describes the completed IMS design as 321 monitoring stations plus 16 laboratories (337 facilities) and reported 307 certified facilities operating on 6 February 2026. Design capacity, certification, operation, availability, and detection limits remain distinct.
CURRENT_PRIMARY_SOURCE_CONFIRMED_SCOPE_LIMITED · OPEN_UNASSIGNED · 2 source origin(s)CURRENT PRIMARY-SOURCE STATUS — REVIEWED THROUGH 2026-07-25
NCR-012current historical-boundary claimNONE_DECLARED_WITHIN_CURRENT_OFFICIAL_SCOPE
CTBTO stated on 14 January 2026 that the last confirmed nuclear test occurred on 3 September 2017 at Punggye-ri and that no later nuclear test explosion had been declared or detected by its network through that source date. This negative-evidence statement is date- and capability-bound.
CURRENT_PRIMARY_SOURCE_CONFIRMED_THROUGH_SOURCE_DATE · OPEN_UNASSIGNED · 2 source origin(s)