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This is an edited version of this programme.

In cities across Japan and the Philippines, an app called Tekkon is making data collection cool.

It's a Pokemon GO-style game which pays people with cryptocurrency if they track down broken infrastructure – such as missing manhole covers and tangled electrical wires.

The same technology that makes the cryptocurrency possible - blockchain - is also being used in South Africa to improve the lives of rubbish collectors.

We investigate how this cutting-edge technology is attempting to solve some everyday problems.

Presenter: Myra Anubi
Producer / Reporter: Craig Langran
Reporter: Micaela Papa
Series producer: Tom Colls
Sound Mix: Hal Haines
Editor: Penny Murphy