DiBiChain

Projekt DIBICHAIN – Digitales Abbild von Kreislaufsystemen mittels einer Blockchain
Dauer  Jul 2019 – Jun 2022
Förderung Bundesministerium für Bildung und Forschung (BMBF), Fördermaßnahme ReziProK
Teilnehmende Unternehmen Altran Germany (Konsortialführung), Blockchain Research LabiPoint-systemsChainstepAirbus
Kontaktperson Fred Steimetz

Projektbeschreibung:

Das Blockchain Research Lab arbeitet seit Juli 2019 gemeinsam mit Airbus, Chainstep und iPoint-systems im von Altran Deutschland geleiteten und vom Bundesministerium für Bildung und Forschung (BMBF) geförderten Forschungsprojekt DiBiChain (Digitales Abbild von Kreislaufsystemen mittels einer Blockchain). Über eine Laufzeit von drei Jahren wird erforscht, wie Produktkreisläufe durch den Einsatz von Blockchain-Technologie transparenter und nachhaltiger werden.

Moderne Produktkreisläufe sind komplex und dezentral. Oft lässt sich nur mit großem Aufwand beurteilen, wie nachhaltig ein Produkt ist und ob ökologische und soziale Standards eingehalten wurden. Im Projekt DiBiChain entwickeln die Projektpartner ein Blockchain-System, das den Produktkreislauf digital abbildet und dadurch transparent macht. Diese Transparenz ermöglicht die Nachverfolgung von Ressourcen über den gesamten Lebenszyklus und eine Stakeholder-gerechte Internalisierung von Externalitäten. Ein wesentlicher Beitrag des Blockchain Research Labs wird die Entwicklung eines in die Blockchain integrierten Anreizsystems sein, welches eine umfassende Erfassung direkter und indirekter Kosten ermöglicht.

Die Forschungsergebnisse werden im Rahmen des Projektes in einem von Airbus bereitgestellten Anwendungsfall bewertet und integriert.

Publications:

BRL Working Paper No. 18

The DibiChain protocol: Privacy-preserving discovery and exchange of supply chain information

Elias Strehle, Martin Maurer

AbstractConnecting and exchanging information across organizations becomes increasingly important as supply chains become more complex and expectations with regard to sustainability, transparency and resilience increase. At the same time, organizations are adamant about protecting any competitive advantage which derives from private information about, for example, supplier networks, available inventory or production processes. Technology aimed at enabling information exchange within and across supply chains must therefore ensure high degrees of privacy and control over private information. In light of this, we specify the DibiChain protocol for the discovery and exchange of supply chain information. The protocol prioritizes data minimization in shared data stores, avoidance of persistent user identifiers and anonymous communication with minimal intermediation. We further outline how the DibiChain protocol can serve as the foundation for privacy-preserving supply chain applications, including an anonymous discovery service for GS1 EPCIS event data.

KeywordsPrivacy; Anonymity; Supply chain; Distributed ledger technology; Blockchain

Publication statusWorking paper

Suggested citationStrehle, E. & Maurer, M. (2021). The DibiChain protocol: Privacy-preserving discovery and exchange of supply chain information. BRL Working Paper No. 18.

Download

BRL Working Paper No. 14

Public Versus Private Blockchains

AbstractPublic blockchains like Bitcoin and Ethereum continue to have an exaggerated influence on the overall perception of blockchain technology. As a consequence, trustlessness is often presented as the central characteristic of blockchain: It is claimed that blockchain designers must assume that users do not trust each other and that there is no trusted third party. While this is arguably true for public blockchains, it is not a helpful perspective for private blockchains. Private blockchains can be highly efficient and effective when they act as a team player, operating alongside legal contracts, trust relationships, regulatory frameworks and trusted third parties.

Keywords: Blockchain; Enterprise Architecture

Publication statusWorking paper

Suggested citationStrehle, E. (2020). Public Versus Private Blockchains. BRL Working Paper No. 14.

Download

BRL Working Paper No. 12

Blockchain for Supply Chain: From Promise to Practice

AbstractThe potential of blockchain for the supply chain sector is widely acknowledged, but it is not always clear how this potential can be realized in specific use cases. Supply chain blockchains must fit into the wider context of complex business relationships, existing technical systems, and ever-changing requirements. Consequently, their design requires a holistic approach which appreciates the complex interplay between the technology and its context. This paper presents a corresponding framework for analyzing and designing blockchain systems in the supply chain sector. It outlines the benefits of blockchain technology, provides guidance on deriving requirements from the use case, and distills critical implementation features.

KeywordsBlockchain, Supply Chain

Publication status: Working paper

Download