Accounting

Verification Technology - Hash Declaration
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Hashed Declarations
Hashed declarations are privacy-preserving declarations and equivalent to tagging schemes using unique identifiers; they enable an inspecting party to confirm upper limits on treaty-accountable items. More »
Verification Technology - Buddy Tag
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Buddy Tag
Buddy tags can be used for warhead accountancy with on-site inspections. More »

Confirmation

Verification Technology - Zero Knowledge
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Zero-knowledge
Launched in 2011 with seed-funding from Global Zero and The Simons Foundation, the Princeton team has been developing a warhead verification approach based on the cryptographic concept of zero-knowledge proofs. More »
Verification Technology - Information Barrier Experimental (IBX)
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Information Barrier Experimental (IBX)
Information barriers shield sensitive measurements, authenticating warheads by a pass/fail signal. More »

Continuity-of-Knowledge

Verification Technology - Electronic Seal
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Electronic Seal
Electronic seals are tamper-indicating devices using an electronic component. More »
Verification Technology - Magtag
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Magtag
MAGTAG blankets detect any changes in the magnetic field due to illicit movements. More »

Identification

Verification Technology - Eddy Current Methods
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Eddy Current Methods
Verification methods involving eddy currents have the potential to support the goal of achieving just enough information to uniquely identify items without providing unnecessary information. More »
Verification Technology - Modal Testing
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Modal Testing
Modal vibration signatures might be used to uniquely identify warheads and containers. More »

Remote and Perimeter Monitoring

Verification Technology - Portal Monitor (outside)
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Portal Monitor (outside)
Portal monitors for vehicles can monitor the transfer of items between facilities. More »
Verification Technology - Person Portal
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Portal Monitor (inside)
Portal monitors can be used to detect the movement of nuclear materials. More »
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