Rivet XXI
E1268280
UNEXPLORED
Rivet XXI was a specific underground nuclear test conducted by the United States as part of its Cold War–era Operation Crosstie test series.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rivet XXI canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T16939312 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rivet XXI Context triple: [Operation Crosstie, containsTest, Rivet XXI]
-
A.
Rivet XIX
Rivet XIX was a specific underground nuclear test device detonated by the United States as part of its Cold War–era Operation Crosstie test series.
-
B.
Rivet XIII
Rivet XIII was a specific underground nuclear test conducted by the United States as part of its Cold War–era nuclear weapons testing program.
-
C.
Rivet XVII
Rivet XVII was a specific underground nuclear test conducted by the United States as part of its Cold War–era nuclear weapons testing program.
-
D.
Rivet II
Rivet II was a specific underground nuclear test conducted by the United States as part of its Cold War-era nuclear weapons development program.
-
E.
Rivet XVIII
Rivet XVIII was a specific underground nuclear test conducted by the United States as part of its mid-20th-century nuclear weapons development program.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Rivet XXI Target entity description: Rivet XXI was a specific underground nuclear test conducted by the United States as part of its Cold War–era Operation Crosstie test series.
-
A.
Rivet XIX
Rivet XIX was a specific underground nuclear test device detonated by the United States as part of its Cold War–era Operation Crosstie test series.
-
B.
Rivet XIII
Rivet XIII was a specific underground nuclear test conducted by the United States as part of its Cold War–era nuclear weapons testing program.
-
C.
Rivet XVII
Rivet XVII was a specific underground nuclear test conducted by the United States as part of its Cold War–era nuclear weapons testing program.
-
D.
Rivet II
Rivet II was a specific underground nuclear test conducted by the United States as part of its Cold War-era nuclear weapons development program.
-
E.
Rivet XVIII
Rivet XVIII was a specific underground nuclear test conducted by the United States as part of its mid-20th-century nuclear weapons development program.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.