Blockchain-based Proof of Location
This addresses privacy risks in centralized verification for users of location-based services, offering a novel decentralized approach.
The paper tackles the problem of ensuring trustworthy geographic locations in Location-Based Services while preserving user privacy, by presenting a decentralized, infrastructure-independent proof-of-location scheme based on blockchain technology.
Location-Based Services (LBSs) build upon geographic information to provide users with location-dependent functionalities. In such a context, it is particularly important that geographic locations claimed by users are trustworthy. Centralized verification approaches proposed in the last few years are not satisfactory, as they entail a high risk to the privacy of users. In this paper, we present and evaluate a novel decentralized, infrastructure-independent proof-of-location scheme based on blockchain technology. Our scheme guarantees both location trustworthiness and user privacy preservation.