Opalatracer: rastreabilidade das gemas Opala de Pedro II em blockchain

Abstract

Opal is a precious stone found in the state of Piauí. In this region, it can only be found in the city of Pedro II and some regions close to it. This mineral is generally sold as a raw stone or in the form of jewelry. It is sold in this form both locally and exported to other regions of Brazil. However, there are other stones that look similar to Opal and synthetic forms of it, which can easily be confused with the original stone. Therefore, it becomes difficult for the consumer to know whether the Opal really comes from Pedro II. A similar situation can be observed in the work “Blockchain applied to the traceability of the Amazon cocoa production chain”. In view of this, this work proposes the use of blockchain applied to the Opal production chain in Pedro II as a way of certifying the originality of this precious stone. Through this, the result was a system that guarantees the traceability and originality of the Pedro II Opal.