One new person is caught into modern slavery every four seconds: but how can blockchain be used to stop that? 

Diginex and the Mekong Club are stemming the tide of worker manipulation in South East Asia by focusing on the security of workers' contracts. Using a new, blockchain-based platform they are leveraging DLT's immutability and transparency to stop workers from getting caught by secretly amended or substituted contracts. 

Mark Blick (from Diginex) explains how.