Blockchain technology has been heralded as the answer to a safer, fairer and more transparent food system. Many companies, from global food giants, to start-ups have begun to experiment with it.
Although not discussed in the programme, fishermen may well want to look to the technology to use with their catch data as a means to provide, but ultimately own, the data they create. Mobile technology could make it possible for all fishermen, no matter what size the vessel, to record and store catch data in real time - and, together, challenge the way in which stocks are assessed by being able to use collective data to better inform those that assess socks.
Emily Thomas meets some pioneers of this new technology, who think it will change the way we eat.
BBC Food Programme - The Food Chain