There was a lot of projects for for product certification but not all of them was successful and fully realized.
Blockchain allows you to track transactions on the network, Kalichain is an important service for certifying products and documents using NFT technology and blockchain for this. It is very important function of blockchain and it will be good if everything will be realized.
Interesting project that uses all the opportunities that offer blockchain. Thanks blockchain it is possible not only track the transactions but also to the origion of the different goods and the projects.