The great spreadsheet in the sky - a podcast by BBC World Service

There’s a technology on the block which has the power to change all kinds of things for the better.
If that power is harnessed, it has the potential to end corruption, protect your online identity and a whole lot more. Start-up companies and charities are using it in everything from tuna supply chains to medical records and ID documents and everything in between.The technology is blockchain and on this episode of People Fixing the World, we’ll explore whether its great potential can be realised.Produced and presented by Tom CollsImage: Blockchain illustration (Getty Images)

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