Shipping is a step closer to blockchain-based forward freight agreements, which could disrupt and open up the notoriously opaque marketplace.

London-based tech firm Zuma Labs has been developing blockchain-based oracle networks for use in trading and in smart contracts, which it hopes will open up new uses for shipping data — and new ways to monetise it.

Oracles automatically gather "trustworthy" data from multiple sources, which is then provided to blockchain-based products that rely on that data.