Mathilde Jay
Co-founder of a circular economy startup developing infrastructure for DPP-enabled resale in the European textile sector, based in Berlin. Leading business development, regulatory strategy, and product design for a platform that enables verified resale through Digital Product Passports. The startup is incubated at ESCP Blue Factory.
French national with experience in business development and technology. Self-taught technical skills in product prototyping and data systems. Previous experience includes roles in consulting and business analysis.
Beyond this project: Active in the European circular economy ecosystem. Relocating to Paris in May 2026 to continue building at the intersection of sustainability regulation and commerce technology.
The objective of this contribution was to design a taxonomy of decentralised identifier and identity terms for further integration into ISO/TC307 works developed by AHG5 and JWG4.
My fellowship was key to address the gap between worldwide blockchain and DLT standards in the fields of identifier and identity management, especially between ISO/TC307, ITU-T and W3C while including some European-led reference documents (i.e. EBSI, eSSIF-Lab and INATBA glossaries).
The main challenge was reaching consensus between ISO/TC307 working groups (especially AHG5 and JWG4) to support the revision of ISO/TS 23258:2021 in order to integrate a taxonomy of decentralised identifier and identity terms.
In this fellowship the original objective is to start to prepare a NWI to address the age approriate topic and start the standard development. The aim is to improve the benefits and reduce the risks in the digital world for young users up to the age of 18. The solution is to adapt the content delivered by online products and services according to the age of users. Moreover, the process requires establishing the age/capacity of users, including age verification and age estimation. The CWA does NOT define age estimation and verification processes (Out of scope) but requires to select an appropriate age assurance tools/approach in conformity with established standards and official guidance.
It aims to develop technical specifications and standards to efficiently manage terminology work ensuring seamless information exchange, minimizing misunderstandings, and enhancing both human-human and human-AI interactions.
The use of digital identity wallets is foreseen to be the best appropriate solution to support an age verification method, which uses the date of birth of the individual without disclosing it.
Understanding how to work in international standardisation committees is vital, which implies going beyond IT asset management microcosm to deliver more value to related disciplines such as cybersecurity or sustainability.
There is a growing need for information about building services systems during the planning and design of buildings. The designers in building services must execute detailed calculations and simulations to ensure saving of energy and to satisfy hygienic and comfort criteria in heating, ventilation, air conditioning, and sanitary plants.