This paper analyses the potential of digital information technology to enable the reliable provision of product information along the plastics supply chain. The authors investigate the possible contribution of a product passport equipped with decentralised identifiers and verifiable credentials...

A large number and variety of activities are being undertaken to introduce Digital Product Passports (DPPs). However, only a few DPPs have made it into practice so far, so there is some uncertainty about which impact DPPs will actually have. With this paper, we aim to provide a structured...