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The effort to track cargo through the supply chain has failed to get off the ground as the blockchain participants (carriers) have been skeptical about the level of centralization, governance structure, uneven economics.
In a nutshell, the IBM-Maersk joint collaboration needs more carriers. The platform is designed such that Maersk's rivals will act as "trust anchors" and run full blockchain nodes on the network. Moreover, large shippers of goods use multiple carriers and freight-forwarders, and the value proposition involves managing cargo and inventory across all of them.
https://www.coindesk.com/ibm-blockchain-maersk-shipping-struggling/
