Blockchain solution for an automated advertising marketplace

This invention describes a device that helps manage advertising spots using blockchain technology. This device receives and stores cryptographic hashes, which are like digital fingerprints, for blocks of information about ad spots in a secure ledger. It can also add details about the viewer's device to these blocks.

Why it matters: The claims describe a specific component for data integrity using hashes, a concept well-established by 2021. The primary challenge remains the widespread adoption and integration of a decentralized integrity layer into the highly centralized and fragmented automated advertising ecosystem.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedSoftware logic, blockchain, cryptographic functions

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