Algorithm 2. Product Registration Process

1: function REGISTRATIONPROCESS(Nnv) 2:  Input: Nnv = T1,T2,T3...  ▷ a set of transactions 3: Output: S Boolean  ▷ State of registration processing of the node. 4:         for each transaction i in Nnv do 5:         Pi = getProductIdFromTransaction(Ti) 6:         Sp = checkExistingProductInBlockChain(Pi) 7:         if Sp is false then 8:               Ni = createNodeForProduct(Pi) 9:                 ExecutePoAhProcessing(Ni) 10:             S ←     true 11:         else if Nt.veri f y(i) is true then 12:                      S ←     false 13:              end if 14:          end for 15: Return S 16: end function