01416nas a2200253   4500000000100000008004100001260002300042653002100065653002000086653003400106653001200140100002000152700001600172700002500188700002000213700001500233700001800248700001600266700001800282245013900300856005700439520065900496022000701155       2021                            d  c08/2021aBarcelona10acircular economy10adigital devices10adistributed ledger technology10aTestbed1 aLeandro Navarro1 aJavier Cano1 aAdrian Manco-Sanchez1 aDavid Franquesa1 aP. Vilchez1 aFelix Freitag1 aRohi Sukhia1 aRonald Lembke00aDecentralized data ecosystem for the Open Blockchain for Asset Disposition Alliance Deliverable 3: Experiment Results and Final Report  uhttps://people.ac.upc.edu/leandro/p/D3-final-pub.pdf3 aMore devices are sold every year than human beings are living on Earth. Decarbonisation is a must to tackle the environmental crisis and comply with the global warming objective of the Paris Agreement. Therefore, we need to create effective market ecosystems capable of reusing ICT devices, extending their lifespan for new uses, instead of always manufacturing new ones, through reuse, repair, and ensure final recycling in a sustainable way. In collaboration with the Obada.io organization and the University of Nevada-Reno in USA, the NGI eReuse-Ledger testbed is a permissioned distributed ledger to support experimentation about device traceability.  aD3