In the context of raw materials, a blockchain can contain data on tonnage, grade, provenance information or responsible production certificates, which then can be validated by the corresponding actors along the supply chain. The information stored in the blockchain can then be physically linked to the actual material by using bar codes, tags or RFID tags. One recent example is the launch of the responsible blockchain network (RSBN) that employs IBM’s blockchain platform and is assured by the supply chain auditing company RCS Global; it allows the tracking of the supply chain from the mined material until the final product (IBM, 2019)
