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 to overcome information deficits and information asymmetry in the circular plastics economy. Through this, high-quality plastics recycling could be enabled on a larger scale than currently possible.
Holger Berg, Raik Kulinna, Carsten Stöcker, Susanne Guth-Orlowski, Ricky Thiermann, Natalie Porepp:
Overcoming Information Asymmetry in the Plastics Value Chain with Digital Product Passports
How Decentralised Identifiers and Verifiable Credentials Can Enable a Circular Cconomy for Plastics
(Wuppertal Paper no. 197)