Hi @Culgin, Thanks for your interest. (: We most propably are going to use SMT, however we are also checking other Blockchains. Our decision will be presented in our technical paper, presented here as well.

Apart from beeing a open community project we are going to be:

• independent and non-profit
• focused to end the fake review problem
• we have an academic and practical approach
• we are technical and not marketing
• we are open for any idea from outside
  For more infornation please wait our next posts (: have a nice day!