Trust chain: Blockchain-based verification framework for transparent advertisement attribution and consumer trust

This paper introduces Trust Chain, a blockchain-based framework designed to address transparency and trust issues in digital advertising attribution. With increasing concerns about ad fraud, data privacy, and misleading attribution models, Trust Chain provides an immutable verification system that validates ad interactions and enables accurate attribution while protecting consumer privacy. The research examines the architecture of the proposed framework, implements a prototype, and conducts empirical tests across various advertising scenarios. Results demonstrate that Trust Chain reduces fraudulent attribution by 87%, increases advertiser confidence by 76%, and improves consumer trust by 63% compared to traditional attribution models. Our findings suggest that blockchain technology can substantially improve transparency in digital advertising ecosystems while offering viable solutions to long-standing challenges in attribution methodology.