透明度和可追溯性是产品生态设计的关键。承诺—信任理论为理解生态设计透明度的有关实践内容提供了重要途径。区块链技术通过促进利益相关者之间的信任和承诺为产品生态设计做出贡献。为了实现产品生态设计的完全可追溯，本文提出了一个集成区块链特征及其生态系统的架构。在该架构中，区块链从以下五个方面促进生态设计的透明度：材料验证、合规审计、生命周期分析(LCA)、碳排放和回收利用。本文通过耐克案例研究，阐述了区块链集成架构如何促进信任和承诺。本文建立了独立的问责流程，为企业提高产品生态设计的透明度提供了有价值的见解。

Transparency and traceability (T&T) are crucial to effective product eco-design. The commitment-trust theory provides an important approach to understand eco-design transparency practices and perspectives. Blockchain technology and platform can support T&T through promoting trust and commitment among various stakeholders who can contribute to eco-design. To enable a fully traceable eco-design, an integrated architecture is proposed which includes blockchain characteristics and its ecosystem. Blockchain boosts eco-design T&T along five aspects: material verification, compliance audits, life cycle analysis (LCA), carbon emissions tracking, and recycling. In a selected Nike case study with secondary sources, the blockchain integrated architecture to promote trust and commitment is elaborated. Stakeholders and consumers may leverage blockchain technology to verify eco-design proclamations. Through establishing independent accountability process, this paper provides valuable insights for companies that are committed to making more transparent choices in eco-design

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