This report documents ideas for how certifiers can leverage blockchain technology to reduce audit inefficiency, create a single source of truth for chain of custody (CoC) tracking and support sustainability data reporting. 
This case study forms part of the Rainforest Alliance project Use of Risk Maps for Child and Forced Labour in Risk-Based Assurance Processes, supported by the ISEAL Innovations Fund. The project sought to test the prototypes of sectoral risk maps for child labor and forced labor in Kenya, Côte d’Ivoire, and Honduras.