# Negative Identity Assertion **Entity class:** Identity-disambiguation control **Domains:** Entity resolution / watchlist redress / screening ## Definition A **negative identity assertion** is a persistent machine-readable statement that an encountered person is **not** the risk-bearing person represented by a similar record. It is the anti-collision counterpart of a positive match. The watchlist architecture implements this function through records for misidentified persons, cleared-list logic, additional distinguishing attributes, and DHS TRIP Redress Control Numbers. The FBI's 2007 Terrorist Screening Records System notice identified misidentified persons as a maintained category and authorized additional identifying information used during screening to distinguish them from listed people with similar characteristics. DHS states that travelers can supply a Redress Control Number in reservations to help prevent future misidentifications. The architecture is: **listed identity → collision → negative resolution → persistent disambiguation object → future collision suppression** This produces a necessary paradox: the system must remember the misidentification in order not to repeat it. A negative identity assertion therefore needs strict purpose, provenance, accuracy, access control, and testing against recurrence. It must suppress the adverse match without silently becoming a new adverse flag. ## Relationships - **problem addressed:** [[wiki/Identity Collision|Identity Collision]] and [[wiki/Watchlist Misidentification|Watchlist Misidentification]]. - **redress mechanism:** [[wiki/Watchlist Redress|Watchlist Redress]]. - **identity architecture:** [[wiki/Persistent Identifier|Persistent Identifier]], [[wiki/Identity Provenance|Identity Provenance]], and [[wiki/Disambiguation|Disambiguation]]. - **residual-state concern:** [[wiki/Surveillance Record Persistence|Surveillance Record Persistence]] and [[wiki/Correction Latency|Correction Latency]]. - **master harm map:** [[wiki/Security Harms Topology|Security Harms Topology]]. ## Sources / Provenance - [FBI — Terrorist Screening Records System, 72 FR 47073](https://www.fbi.gov/how-we-can-help-you/more-fbi-services-and-information/freedom-of-information-privacy-act/fbi-privacy-act-systems/72-fr-47073) (2007-08-22). - [DHS — Secure Flight Privacy Impact Assessment](https://www.dhs.gov/xlibrary/assets/privacy/privacy_pia_secureflight2008.pdf) (2008-10-20). - [DHS TRIP — Frequently Asked Questions](https://trip.dhs.gov/s/faq-page?language=en_US) (accessed 2026-09-23). **As of:** 2026-09-23