Free XinFin Blockchain Course with Online Certification.. This exam comprises of theory and practical Question, to be completed within 45 minutes. The minimum passing score of the exam is above 60%. Upon passing of the exam, you will be entitled to receive a certification of competence, which will be added to the Xinfin blockchain. With the certificate… Entire Course access is free but Nominal fees will be charge, if you like to get XinFin Blockchain Certification. Certification will be issue on XinFin Public Blockchain (More detail: XinFin.org). We invite Educational Institute to be part of Education Initiative. http://www.blockdegree.org