The End Of Universal Lifelong Identifiers: Identity Systems For The AI Era

• URL: http://arxiv.org/abs/2506.02027v1
• Date: Thu, 29 May 2025 19:45:39 GMT
• Title: The End Of Universal Lifelong Identifiers: Identity Systems For The AI Era
• Abstract summary: Many identity systems assign a single, static identifier to an individual for life, reused across domains like healthcare, finance, and education.<n>We take the position that ULIs are fundamentally incompatible with the AI era and must be phased out.<n>We present a cryptographic framework that satisfies them while retaining compatibility with existing identifier.
• Score: 1.9580473532948401
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Many identity systems assign a single, static identifier to an individual for life, reused across domains like healthcare, finance, and education. These Universal Lifelong Identifiers (ULIs) underpin critical workflows but now pose systemic privacy risks. We take the position that ULIs are fundamentally incompatible with the AI era and must be phased out. We articulate a threat model grounded in modern AI capabilities and show that traditional safeguards such as redaction, consent, and access controls are no longer sufficient. We define core properties for identity systems in the AI era and present a cryptographic framework that satisfies them while retaining compatibility with existing identifier workflows. Our design preserves institutional workflows, supports essential functions such as auditability and delegation, and offers a practical migration path beyond ULIs.

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