Zero-Knowledge CO2 Emission Certification for Construction Vehicles

Industries aim to certify their commitment to sustainability and traditionally the emission data is verified by third-parties. The public blockchain offers a decentralized alternative, ensuring transparency and integrity but lacking privacy. Zero-Knowledge Proofs (ZKPs) are mechanisms that can ensure verification of data while preserving privacy of information. We propose a system integrating blockchain with ZKPs that allows companies to certify emissions from vehicles and non-road machinery without revealing sensitive data, while remaining cost-efficient in terms of smart contract execution.