In order to use the FoodChain’s decentralized traceability ledger, supply chain companies (or implementation partners) have to obtain the appropriate number of software licences. TFD is a tokenized software licence, based on Ethereum’s ERC20 standard.
The utility of the tokenized licence is to provide eligibility for a certain number of transactions to be sent to the FoodChain. A tracking transaction involves the storage of data in the blockchain, allowing for tracking or further processing. By means of the transaction, data are retrieved or a tracking transaction is executed, i.e. a data set is written in the blockchain (read or write access executed).
The FoodChain can only be used with a valid licence, either held in the ERC20 compatible wallet of the customer, (or the implementation partner), or rented from licence providers (called Iridium nodes).