User authentication services using blockchain technology for data in the field of reproductive medicine, genetics, work of art, financial transactions, medical records, biology, living tissues, human and animal organs, stem cells, DNA, RNA, blood, embryology, living things in the nature of humans, animals, insects, plants, bacteria and viruses, biological things in the nature of humans, animals, insects, plants, bacteria and viruses, grains, flowers, corns, plants, animals, cryptocurrency tra...