GreenChain Innovation Hackathon: Decentralize the Future. Green the Economy.
Web3 Innovation HUB
101179566 — W3IH — ERASMUS-EDU-2024-CBHE
Executive Summary
The GreenChain Innovation Hackathon brought students together at the Faculty of Economics, University of Montenegro, to develop technology-driven solutions for a more sustainable economy. Held on December 16–17, 2025, under the slogan “Decentralize the Future. Green the Economy,” the event explored how blockchain, tokenization, and Web3 can address practical challenges in business and society. The hackathon brought together five teams, each consisting of four participants.
Three teams received awards for projects focused on food supply chain transparency, environmental engagement, and alternative financing. The programme combined introductory sessions, practical workshops, mentoring, and final project presentations.
Purpose and Theme
The hackathon challenged participants to apply emerging technologies to economic and environmental issues. The programme introduced the fundamentals of Web3 and examined its relationship with innovation, sustainability, and the green economy.
Organized within the Web3 Innovation Hub project, which aims to strengthen regional innovation and entrepreneurship through education, startups, and decentralized science, and is funded by the European Union.
Winning Projects
1st Place – Team FreshCode
Team Members: Jovana Rakočević, Violeta Knežević, Marija Zejak, and Marija Golubović
FreshCode is a blockchain-based food traceability concept designed to track products throughout the supply chain, from producer to final consumer. The project addresses the need for reliable information about food origin and handling. By using immutable blockchain records, the proposed system aims to improve transparency, strengthen consumer confidence, and facilitate access to relevant information for inspection authorities.
2nd Place – Team GoGreen
Team Members: Anja Marsenić, Milica Čukić, Tijana Londrović, and Sabina Škrijelj
GoGreen App explores the connection between tokenization, blockchain, and environmental initiatives. Its concept focuses on using digital tokens to encourage participation in ecological activities and support engagement with the green economy. The project highlights how Web3 mechanisms could provide new ways to connect digital innovation with environmentally conscious behaviour.
3rd Place – Team Pinky
Team Members: Anđelina Knežević, Elena Bulić, Branka Radnić, and Anđela Nedović
Pinky addresses the difficulties entrepreneurs may face when seeking investment to establish or expand their businesses, particularly in local markets. The project proposes company value tokenization as an alternative approach to connecting businesses in need of capital with potential investors. Its concept aims to broaden access to investment opportunities through blockchain-based mechanisms.
Programme and Mentoring
The two-day programme combined knowledge-sharing sessions with practical project development.
Day 1 – December 16, 2025
The opening day featured an introductory session on the economics of innovation and sustainability held by dr Milica Muhadinović, a keynote on how Web3 transforms the economy, and workshops on Web3 fundamentals and blockchain in the green economy held by Danilo Purić. After the challenges were presented, participants formed teams, consulted with mentors, and began working on their projects.
Day 2 – December 17, 2025
Teams continued developing their solutions and received further mentoring. The programme also included a presentation-skills session held by Vladimir Vulić and dedicated time to prepare final pitches. The event concluded with team presentations, jury deliberations, and the announcement of the winners.
Impact and Highlights
- Three award-winning concepts addressing distinct economic and environmental challenges.
- Practical exploration of blockchain and Web3 applications.
- Team-based development supported by mentor consultations.
- Final presentations and evaluation by a jury.
- A focus on connecting technological innovation with real-world needs.
About the Project
The Web3 Innovation Hub (W3IH) project, number 101179566 – ERASMUS-EDU-2024-CBHE, is implemented within the Erasmus+ programme. The project aims to build capacity in higher education institutions through the integration of Web3 technologies and decentralised science in academic research and education.