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Decentralized identity (DID) streamlines conference tracking via verifiable credentials (VCs) for tickets, badges, and session access. Attendees prove eligibility (e.g., "VIP pass") using ZKPs without sharing personal data. Smart contracts automate check-ins and badge activation, while blockchain audit trails reduce ticket fraud. Self-sovereign identity (SSI) lets users control data sharing, and interoperable DIDs enable cross-conference loyalty programs, enhancing security and attendee experience.

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