In a groundbreaking achievement for the green fuel economy, Fortescue, Trovio, and the Green Hydrogen Organisation (GH2) completed the issuance of the world’s first digital fuel certificate for an ammonia-to-ship transfer in Rotterdam. The collaboration marked a significant step towards tracing and verifying new marine fuels for the energy transition. The digital certificate, issued through Trovio’s CorTenX platform, captured detailed data on the fuel's sustainability attributes, such as its origin and handling, ensuring auditable transparency in the supply chain. This milestone pilot not only showcased the operational viability of ammonia as a marine fuel but also highlighted the crucial role of digital infrastructure in enabling scalability and verification. Fortescue's Head of Green Shipping emphasized the importance of setting new benchmarks in transparency and traceability to advance the adoption of zero-emission fuels. The CorTenX platform, purpose-built for environmental markets, supports secure and regulatory-grade data integrity, underpinning the future of sustainable fuel verification. Overall, this achievement signifies a move towards a greener future in the maritime sector, with digital registries like CorTenX playing a pivotal role in aligning sustainability ambition with market implementation.