Revolutionizing Authentication in Blockchain: A Focus on Green Hydrogen Certification and the Oracle Dilemma

This paper aims to present a concept for addressing the Oracle Problem in the context of hydrogen production using renewable energy sources. The Oracle Problem, a well-known issue in decentralized systems, involves ensuring the authenticity and integrity of external data inputs. For hydrogen production, verifying that the electricity used is from renewable sources is crucial for certifying the hydrogen as “green.” Our approach addresses this challenge by using a decentralized network of multiple surrounding actors with similar electricity generation facilities. These actors participate in a collaborative authentication process, attesting to the authenticity of the electricity production. Central to our approach is the introduction of an Authenticity Score and a Trust Score. The Authenticity Score is assigned to each certificate of electricity production, reflecting the reliability of the renewable energy claim. Each witness—an actor in the network who attests to the production—receives a Trust Score based on their reliability and number of successful attestations. For a certificate to be validated, it must be attested by several actors with sufficient Trust Scores, ensuring a high Authenticity Score above a predefined threshold. This attestation mechanism creates a robust framework for verifying the “greenness” of hydrogen. By distributing authentication responsibility across a diverse network of actors, our approach mitigates the risks of centralized verification systems and enhances the credibility of the certification process. The concept effectively addresses the Oracle Problem, fostering greater trust and transparency in the renewable energy sector and contributing to the broader adoption of green hydrogen solutions.