Hashgraph Group, a Web3 and AI engineering firm, and Truesense, a developer of ultra-wideband sensing expertise, have introduced a European patent utility for Steady Id Belief Infrastructure (CITI). The brand new system is designed to attach proof of a person's bodily presence to a decentralized digital id, whereas defending private knowledge.
The patent utility was filed with the European Patent Workplace on April 4, 2026 and covers greater than 44 European international locations. Each corporations are additionally getting ready to file patent purposes in the US.
CITI combines three applied sciences: ultra-wideband (UWB) sensing, decentralized identifiers (DID), and zero-knowledge proof (ZKP) encryption. Collectively, these applied sciences make it doable to confirm that an individual was bodily current at a selected place and time with out revealing private info or location particulars.
The system works by first detecting the presence of an individual by way of a UWB sensor. This occasion shall be linked to a decentralized id saved in your digital pockets. Verifiable credentials, together with timestamps and cryptographic proofs, are generated and persistently recorded on a distributed ledger. Third events can later confirm credentials with out accessing delicate knowledge.
The businesses say the expertise may very well be utilized in fields the place id verification is necessary, reminiscent of finance, healthcare, sports activities and leisure. For instance, an individual can use a digital ID pockets as a substitute of an entry badge to enter a safe constructing. Verification occasions are logged to the Hedera community, creating an auditable file whereas lowering the chance of credential sharing.
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